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Tytuł:
Modernization of a high pressure synthesis gas turbocompressor
Autorzy:
Kryłłowicz, W.
Kozanecki, Z.
Świder, P.
Powiązania:
https://bibliotekanauki.pl/articles/175307.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
syngas
radial compressor
modernization
Opis:
The paper describes several modernization aspects of a three-staged synthesis gas radial turbo compressor. The principal aim was to adapt the machine to new working conditions, resulting from the current state-of-art production technology. The required discharge pressure was changed from 21.1 MPa to 14 MPa. The paper covers the discussion on the scope of modernization, its variants and the final variant choice. It provides review of the thermodynamic calculation methodology, dedicated test stand results and also some of the on-site acceptance tests. The revamped compressor is in continuous service since October 2015.
Źródło:
Transactions of the Institute of Fluid-Flow Machinery; 2016, 131; 121-130
0079-3205
Pojawia się w:
Transactions of the Institute of Fluid-Flow Machinery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrogen rich gases combustion in the IC engine
Autorzy:
Szwaja, S.
Powiązania:
https://bibliotekanauki.pl/articles/245372.pdf
Data publikacji:
2009
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
syngas
coke gas
hydrogen
combustion
Opis:
Experimental results of combusting three different syngases in an internal combustion (IC) spark ignition engine are presented in this paper. The syngases used for tests varied each from the other with hydrogen content, which was of 10,15 and 60%. Other combustible gases as CO and CH4 were also changed. Thus, the lower heating value of the syngases was of 2.7, 4.6 and 17.2 MJ/nm3, respectively. Combustion tests were performed at stoichiometric ratio of syngas-air mixture, with variable spark timing and constant compression ratio of 10. On the basis of in-cylinder combustion pressure histories the indicated mean effective pressure (IMEP) was computed and presented versus spark timing and vs location of the middle combustion phase expressed by the 50% of mass fraction burned (MFB). Additionally, the 0-10% MFB and 10-90% MFB were also determined. Furthermore, the paper contains theoretical determination of the three fuel quantities, which can affect combustion duration and heat release rate during burning the syngases in the IC engine. They are as follows: laminar flame speed, ignition delay and adiabatic flame temperature. Final results does not show satisfactory correlation between LFS computed at NTP and real combustion phasing. Furthermore, both long combustion duration and long 0-10% MFB leading to unstable combustion were observed for the syngas with the lowest LHV of 2.7 MJ/nm3.
Źródło:
Journal of KONES; 2009, 16, 4; 447-454
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthetic Gas Production from Fine Coal Gasification Using Low-Cost Catalyst
Autorzy:
Andican, Akbar
Faizal, Muhammad
Said, Muhammad
Aprianti, Nabila
Powiązania:
https://bibliotekanauki.pl/articles/2086400.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
syngas
natural zeolite
thermochemical process
energy
Opis:
The utilisation of fine coal waste is still limited, even though its availability is very abundant in the mining industry. This study utilises fine coal by converting it into syngas through catalytic gasification. The gasification process was carried out at a temperature range of 350–550°C for 10–50 minutes using natural zeolite as a catalyst. The syngas composition and quality parameters were evaluated through the H2/CO ratio, heating value, and gasification efficiency. From the research results, fine coal contained high amounts of carbon and fixed carbon. Temperature is the variable that most influences the gasification process. The addition of zeolite actively increased the CO content in the syngas. The H2/CO ratio of syngas >1, the highest HHV and LHV 16.15 and 14.46 MJ/Nm3 with the highest carbon conversion efficiency value of 88.85%, made fine coal very suitable to be used as raw material for the gasification process to produce environmentally friendly syngas.
Źródło:
Journal of Ecological Engineering; 2022, 23, 5; 64--72
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Entrance research on pressure distribution in combustion chamber of gasoline engine applied in electric generator, fuelled by syngas, for different ignition timing
Autorzy:
Janicka, A.
Magdziak-Tokłowicz, M.
Rodak, M.
Trzmiel, K.
Włostowski, R.
Zawiślak, M.
Powiązania:
https://bibliotekanauki.pl/articles/245836.pdf
Data publikacji:
2015
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
spark-ignition engine
biomass
syngas
gasification
cogeneration
Opis:
Synthetic gas (syngas) produced form waste organic matter may be used as a fuel for internal combustion engines. Possibilities of syngas application as an independent IC engine energy carrier are limited. Designed system of energy conversion from waste to electricity is expected to produce gas consists mainly carbon monoxide, methane, hydrogen and carbon dioxide. Based on theoretical study and own research, as the main factors which impact on floating syngas composition the quality of input substance, process temperature and gasifying medium application were identified. The fluctuation of syngas composition contributes important challenge in aspect of energetic efficiency and mechanical durability of generator system. The researches were provided on research test bed, which enables pressure distribution measurement in the combustion chamber (for various mixture of synthetic gases) and correction of ignition timing. The results of the researches indicate that proper correction of the ignition advance allows syngas mixtures combustion in wide range of their composition.
Źródło:
Journal of KONES; 2015, 22, 4; 125-131
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of heating rate and solvent on Ni-based catalysts prepared by solution combustion method for syngas methanation
Autorzy:
Zeng, Yan
Ma, Hongfang
Zhang, Haitao
Ying, Weiyong
Fang, Dingye
Powiązania:
https://bibliotekanauki.pl/articles/779390.pdf
Data publikacji:
2014
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
nickel catalysts
syngas methanation
solution combustion method
Opis:
Ni-Al2O3 catalysts prepared by solution combustion method for syngas methanation were enhanced by employing various heating rate and different solvent. The catalytic properties were tested in syngas methanation. The result indicates that both of heating rate and solvent remarkably affect Ni particle size, which is a key factor to the catalytic activity of Ni-Al2O3 catalysts for syngas methanation. Moreover, the relationship between Ni particle size and the production rate of methane per unit mass was correlated. The optimal Ni-Al2O3 catalyst prepared in ethanol at 2°C/min, achieves a maximum production rate of methane at the mean size of 20.8 nm.
Źródło:
Polish Journal of Chemical Technology; 2014, 16, 4; 95-100
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CFD modeling of syngas combustion and emissions for marine gas turbine applications
Autorzy:
Ammar, N. R.
Farag, A. I.
Powiązania:
https://bibliotekanauki.pl/articles/259882.pdf
Data publikacji:
2016
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
CFD
syngas fuel
combustion characteristics
exhaust gas emissions
Opis:
Strong restrictions on emissions from marine power plants will probably be adopted in the near future. One of the measures which can be considered to reduce exhaust gases emissions is the use of alternative fuels. Synthesis gases are considered competitive renewable gaseous fuels which can be used in marine gas turbines for both propulsion and electric power generation on ships. The paper analyses combustion and emission characteristics of syngas fuel in marine gas turbines. Syngas fuel is burned in a gas turbine can combustor. The gas turbine can combustor with swirl is designed to burn the fuel efficiently and reduce the emissions. The analysis is performed numerically using the computational fluid dynamics code ANSYS FLUENT. Different operating conditions are considered within the numerical runs. The obtained numerical results are compared with experimental data and satisfactory agreement is obtained. The effect of syngas fuel composition and the swirl number values on temperature contours, and exhaust gas species concentrations are presented in this paper. The results show an increase of peak flame temperature for the syngas compared to natural gas fuel combustion at the same operating conditions while the NO emission becomes lower. In addition, lower CO2 emissions and increased CO emissions at the combustor exit are obtained for the syngas, compared to the natural gas fuel.
Źródło:
Polish Maritime Research; 2016, 3; 39-49
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Waste-to-energy technologies as the future of internal combustion engines
Autorzy:
Hamid, Mohamad
Wesołowski, Mateusz
Powiązania:
https://bibliotekanauki.pl/articles/24202463.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
syngas
gasification
physicochemical properties
applications
gaz syntezowy
zgazowanie
właściwości fizykochemiczne
zastosowania
Opis:
Syngas has a promising future as alternative to petroleum products and as a fuel for combustion engines. This study provides an overview on the feasibility of using syngas to power internal combustion engines. It presents technological process solutions for producing syngas toward minimizing the formation of tars as the most undesirable component for engine applications.. The combustion process characteristic of syngas composition has been tackled including critical criteria such as the flammability limit, ignition delay, laminar velocity, turbulent velocity, and the subsequent challenges in determining a numerical methods that best matches the experimental datas. The syngas usage as alternative resource, while tackling the uncertainty issue of its composition, for Compression Ignition (CI) and Spark Ignition (SI) with the emission and performance effectiveness has been studied as well. The results of the review showed that syngas can be a viable alternative for some stationary applications, such as advanced integrated systems (ICCG), but its application is, however, relatively limited, for example as a secondary fuel in engines (CI) for automotive applications. However, significant discrepancies between numerical (simulation) and experimental results have been noted. This suggests that there are many scientific and experimental challenges in the area of syngas combustion processes in internal combustion engines. However, given the potential of this group of fuels, especially in the face of the energy crisis, this research is highly desirable and has a significant application perspective.
Źródło:
Combustion Engines; 2023, 62, 2; 52--63
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of exhaust gas on detonation propensity of a mixture of carbon monoxide, hydrogen and air
Autorzy:
Jach, A.
Teodorczyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/241895.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
detonation propensity
syngas
χ
RSB
detonation cell width
exhaust gas
combustion products
Opis:
A detonation is the strongest form of all gas explosions. The ease with which a flammable mixture can be detonated (detonability) commonly and traditionally is classified by a detonation cell width λ and an ignition delay time behind the detonation leading shock τ. Additionally, two more parameters were proposed 3 years ago – χ and RSB, which inform about regularity of a detonation structure. The problem of a detonation is significant in industry, in particular in power engineering, where restricted emission standard impose to introduce hydrogen-rich fuels, such as syngas. The most possible initiation of a detonation in industrial conditions is deflagration to detonation transition (DDT), where a deflagration under some conditions (obstacles, confinement, etc.) accelerates and a transition to a detonation takes places. In industry, this acceleration of a flame may progress in initially smoke-filled space. The goal of this paper is to analyse influence of exhaust gas on detonation propensity of a mixture of carbon monoxide and hydrogen. The analysis concerns the detonation cell width λ, ignition delay time τ, RSB and χ parameters. The composition of exhaust gas is calculated by setting it to a state of chemical equilibrium. Combustion temperature influence on exhaust gas composition is assessed. Species, which have the strongest influence on detonability, are assessed. Computations are performed with the use of Cantera tool.
Źródło:
Journal of KONES; 2016, 23, 2; 155-161
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected aspects of coal gasification for application in low-emission energy technologies
Wybrane aspekty zgazowania węgla do zastosowania w niskoemisyjnych technologiach energetycznych
Autorzy:
Madejski, Paweł
Różycki, Sławomir
Banaś, Marian
Pająk, Tadeusz
Powiązania:
https://bibliotekanauki.pl/articles/2173168.pdf
Data publikacji:
2021
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
gasification
gas fuel
syngas
gas technology
zgazowanie
paliwo gazowe
syngaz
technologie gazowe
Opis:
Solid fuel electricity generation has been known and used for many years. The combustion of solid fuels is a complex process that requires proper preparation of the fuel, carrying out the combustion process, as well as the removal of harmful substances in the form of dust and gaseous pollutants (NOx, SOx, CO) from exhaust gases emitted into the environment. For decades, the gaseous form has been considered the noblest form of fuel. Gaseous fuels can be easily transported over long distances, are immediately ready for combustion and the composition of the fuel mixture can be freely adjusted. The constant pursuit to reduce anthropogenic greenhouse gas emissions require the use of low-emission and zero-emission energy generation technologies. In the case of coal, this will mean a shift from direct combustion to more advanced systems powered by gaseous fuel. The paper presents an overview of the available techniques and technologies of solid fuel gasification aimed at the production of gaseous fuels, which can be used in low-emission energy technologies. The computational methods of the gasification process are also presented, which allow the selection of the best technology and operating parameters of individual reactors.
Wytwarzanie energii elektrycznej z wykorzystaniem paliw stałych jest znane i stosowane od wielu lat. Spalanie paliw stałych jest procesem złożonym, wymagającym odpowiedniego przygotowania paliwa, przeprowadzenia procesu spalania, jak również pozbawienia spalin szkodliwych substancji emitowanych do środowiska w postaci pyłu oraz zanieczyszczeń gazowych (NOx, SOx, CO). Od dekad jako najszlachetniejszą postać paliwa uznaje się postać gazową. Paliwa gazowe mogą być łatwo transportowane na duże odległości, są od razu gotowe do spalania, a skład mieszanki paliwa można dowolnie regulować. Ciągłe dążenie do ograniczenia antropogenicznych emisji gazów cieplarnianych wiąże się z koniecznością stosowania niskoemisyjnych i zeroemisyjnych technologii wytwarzania energii. W przypadku węgla oznaczać to będzie konieczność odchodzenia od technologii bezpośredniego spalania na rzecz bardziej zaawansowanych układów zasilanych paliwem w postaci gazowej. W artykule przedstawiono przegląd dostępnych technik i technologii zgazowania paliw stałych ukierunkowanych na produkcję paliw gazowych, możliwych do zastosowania w niskoemisyjnych technologiach energetycznych. Przedstawione zostały także metody obliczeniowe procesu zgazowania mające umożliwić dobór najlepszej technologii oraz parametrów pracy poszczególnych reaktorów.
Źródło:
Mining – Informatics, Automation and Electrical Engineering; 2021, 59, 4; 31-39
2450-7326
2449-6421
Pojawia się w:
Mining – Informatics, Automation and Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wybrane aspekty zgazowania węgla do zastosowania w niskoemisyjnych technologiach energetycznych
Selected aspects of coal gasification for application in low-emission energy technologies
Autorzy:
Madejski, Paweł
Różycki, Sławomir
Banaś, Marian
Pająk, Tadeusz
Powiązania:
https://bibliotekanauki.pl/articles/2173173.pdf
Data publikacji:
2021
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
zgazowanie
paliwo gazowe
syngaz
technologie gazowe
gasification
gas fuel
syngas
gas technology
Opis:
Wytwarzanie energii elektrycznej z wykorzystaniem paliw stałych jest znane i stosowane od wielu lat. Spalanie paliw stałych jest procesem złożonym, wymagającym odpowiedniego przygotowania paliwa, przeprowadzenia procesu spalania, jak również pozbawienia spalin szkodliwych substancji emitowanych do środowiska w postaci pyłu oraz zanieczyszczeń gazowych (NOx, SOx, CO). Od dekad jako najszlachetniejszą postać paliwa uznaje się postać gazową. Paliwa gazowe mogą być łatwo transportowane na duże odległości, są od razu gotowe do spalania, a skład mieszanki paliwa można dowolnie regulować. Ciągłe dążenie do ograniczenia antropogenicznych emisji gazów cieplarnianych wiąże się z koniecznością stosowania niskoemisyjnych i zeroemisyjnych technologii wytwarzania energii. W przypadku węgla oznaczać to będzie konieczność odchodzenia od technologii bezpośredniego spalania na rzecz bardziej zaawansowanych układów zasilanych paliwem w postaci gazowej. W artykule przedstawiono przegląd dostępnych technik i technologii zgazowania paliw stałych ukierunkowanych na produkcję paliw gazowych, możliwych do zastosowania w niskoemisyjnych technologiach energetycznych. Przedstawione zostały także metody obliczeniowe procesu zgazowania mające umożliwić dobór najlepszej technologii oraz parametrów pracy poszczególnych reaktorów.
Solid fuel electricity generation has been known and used for many years. The combustion of solid fuels is a complex process that requires proper preparation of the fuel, carrying out the combustion process, as well as the removal of harmful substances in the form of dust and gaseous pollutants (NOx, SOx, CO) from exhaust gases emitted into the environment. For decades, the gaseous form has been considered the noblest form of fuel. Gaseous fuels can be easily transported over long distances, are immediately ready for combustion and the composition of the fuel mixture can be freely adjusted. The constant pursuit to reduce anthropogenic greenhouse gas emissions require the use of low-emission and zero-emission energy generation technologies. In the case of coal, this will mean a shift from direct combustion to more advanced systems powered by gaseous fuel. The paper presents an overview of the available techniques and technologies of solid fuel gasification aimed at the production of gaseous fuels, which can be used in low-emission energy technologies. The computational methods of the gasification process are also presented, which allow the selection of the best technology and operating parameters of individual reactors.
Źródło:
Mining – Informatics, Automation and Electrical Engineering; 2021, 59, 4; 40-48
2450-7326
2449-6421
Pojawia się w:
Mining – Informatics, Automation and Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Past, present and future of thermal gasification of biomass and waste
Autorzy:
Hrbek, Jitka
Powiązania:
https://bibliotekanauki.pl/articles/1430041.pdf
Data publikacji:
2020
Wydawca:
Centrum Badań i Innowacji Pro-Akademia
Tematy:
gasification
syngas
biochemicals
biofuels
CHP
hybrid systems
gazyfikacja
biochemikalia
biopaliwa
systemy hybrydowe
Opis:
The thermal gasification has been used for nearly 200 years. At the beginning coal or peat were used as a feedstock to produce gas for cooking and lighting. Nowadays, the coal gasification is still actual, anyway, in times without fossils the biomass and waste gasification becomes more important. In this paper, the past, present and future of the biomass and waste gasification (BWG) is discussed. The current status of BWG in Austria, Denmark, Germany, Italy, the Netherlands, Sweden and USA is detailed described and the future potential of the technology is outlined.
Źródło:
Acta Innovations; 2020, 35; 5-20
2300-5599
Pojawia się w:
Acta Innovations
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experiment of Gasification of the Synthetically Mixed Sample of Waste in Nitrogen Atmosphere
Autorzy:
Lázár, M.
Jasminská, N.
Lengyelová, N.
Powiązania:
https://bibliotekanauki.pl/articles/386933.pdf
Data publikacji:
2013
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
reaktor plazmowy
zgazowanie
odpady organiczne
gaz syntezowy
plasma reactor
gasification
organic waste
syngas
Opis:
New classes of singular fractional continuous-time and discrete-time linear systems are introduced. Electrical circuits are example of singular fractional continuous-time systems. Using the Caputo definition of the fractional derivative, the Weierstrass regular pencil decomposition and Laplace transformation the solution to the state equation of singular fractional linear systems is derived. It is shown that every electrical circuit is a singular fractional systems if it contains at least one mesh consisting of branches with only ideal supercondensators and voltage sources or at least one node with branches with supercoils. Using the Weierstrass regular pencil decomposition the solution to the state equation of singular fractional discrete-time linear systems is derived. The considerations are illustrated by numerical examples.
Źródło:
Acta Mechanica et Automatica; 2013, 7, 1; 34-37
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Equilibrium simulations of coal gasification – factors affecting syngas composition
Autorzy:
Żogała, A.
Powiązania:
https://bibliotekanauki.pl/articles/92028.pdf
Data publikacji:
2014
Wydawca:
Główny Instytut Górnictwa
Tematy:
coal gasification
equilibrium
syngas
heating value
zgazowanie węgla
równowaga
gaz syntezowy
wartość opałowa
Opis:
Purpose: Coal gasification is complex technology, which results depend on many variables, connected among others with fuel, the converting agent and the process itself. The paper aims to analyze, by means of simulations, the influence of the following factors – temperature, pressure, characteristic parameters of coal and gasifying agent, on the composition and heating value of the obtained syngas. The other aim of this paper is the determination of gasification efficiency (based on the definition of cold gas efficiency) for various process conditions. Methods: Computer simulations were used as the research method for the work presented. An equilibrium model, based on the stoi-chiometric method with four independent reactions, was formulated and used in this paper. This model was implemented in Mathematica software. The influence of temperature (in a range from 500 to 1500°C), pressure (changed from atmospheric to 35 atm), three types of gasifying agent (mixtures of air, pure oxygen and steam) and the composition of four Polish coals (lignite and three hard-coals) on syngas parameters were analyzed in this paper. Results: Concentrations of CO2, CO, CH4, H2O, H2, N2 in the equilibrium syngas, for the chosen temperature, pressure and parame-ters of the fuel and converting agent were the results of the simulations carried out. Subsequently, the lower heating value and process efficiency for each syngas composition was calculated. Practical implications: The simulations indicated the thermodynamic limits of gasification and allowed for the formulation of the general principles ruling this process. Results presented in this paper may be useful in the preliminary optimization and analysis of coal gasification. They also can be a point of reference for more advanced simulations. Originality/ value: This paper presents own results obtained from equilibrium simulations of coal gasification. The author implemented a mathematical model, based on the method of Deringer and Traustel, presented earlier in literature, to carry out the calculations.
Źródło:
Journal of Sustainable Mining; 2014, 13, 2; 30-38
2300-1364
2300-3960
Pojawia się w:
Journal of Sustainable Mining
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of Synthesis Gas as Fuel for a Solid Oxide Fuel Cell
Autorzy:
Alvarez-Cedillo, Jesus A.
Alvarez-Sanchez, Teodoro
Sandoval-Gomez, Raul J.
Gonzalez-Vasquez, Alexis
Sarabia-Alonso, Teresa
Powiązania:
https://bibliotekanauki.pl/articles/2202146.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
anode
cathode
electrolyte
biomass
syngas
solid oxide fuel cell
mathematical model
steady state
Opis:
There is a real need to use various efficient energy supply systems that are not aggressive towards the global environment. Hydrogen has been seen in different research papers presented in the literature as an essential fuel to generate energy in various energy storage systems. As it is well-known, it is possible to generate renewable electricity using electrolysis. The hydrogen produced can be sold as fuel for various systems, most notably its use in solid oxide fuel cells and a host of modern applications today. Current low-temperature fuel cells are ideal for hydrogen operation, but are not suitable for hydrogen mixtures. In this article, a mathematical analysis was carried out to generate electrical energy in a fuel cell, fed with synthesis gas from the residual biomass gasification process; the primary interest was the generation of electrical energy, solid oxide fuel cell (SOFC), which operate at the temperature of the gas at the outlet of the gasifier were analyzed. The practical efficiency obtained and the theoretical results of the SOFC operation were shown.
Źródło:
Journal of Ecological Engineering; 2022, 23, 10; 35--41
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance of cryogenic oxygen production unit with exhaust gas bleed for sewage sludge gasification and different oxygen purities
Autorzy:
Kaszuba, Maja
Ziółkowski, Paweł
Mikielewicz, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/27312208.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
thermodynamic analysis
oxy-combustion of syngas
BECCS
cryogenic air separation
penalty production
oxygen production
Opis:
The paper presents a thermodynamic analysis of the integration of a cryogenic air separation unit into a negative CO2 emission gas power plant. The power cycle utilizes sewage sludge as fuel so this system fits into the innovative idea of bioenergy with carbon capture and storage. A cryogenic air separation unit integrated with the power plant was simulated in professional plant engineering and thermodynamic process analysis software. Two cases of the thermodynamic cycle have been studied, namely with the exhaust bleed for fuel treatment and without it. The results of calculations indicate that the net efficiencies of the negative CO2 emission gas power plant reach 27.05% (combustion in 95.0% pure oxygen) and 24.57% (combustion in 99.5% pure oxygen) with the bleed. The efficiencies of the cycle without the bleed are 29.26% and 27.0% for combustion in 95.0% pure oxygen and 99.5% pure oxygen, respectively. For the mentioned cycle, the calculated energy penalty of oxygen production was 0.235 MWh/kgO2 for the lower purity value. However, for higher purity namely 99.5%, the energy penalty of oxygen production for the thermodynamic cycle including the bleed and excluding the bleed was indicated 0.346 and 0.347 MWh/kgO2, respectively. Additionally, the analysis of the oxygen purity impact on the carbon dioxide purity at the end of the carbon capture and storage installation shows that for the case with the bleed, CO2 purities are 93.8% and 97.6%, and excluding the bleed they are 93.8% and 97.8%, for the mentioned oxygen purities respectively. Insertion of the cryogenic oxygen production installation is required as the considered gas power plant uses oxy-combustion to facilitate carbon capture and storage method.
Źródło:
Archives of Thermodynamics; 2023, 44, 3; 63--81
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 33

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