Temat: Biodiesel - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Biodiesel Production of Palm Oil Mill Effluent by Using Hydrotalcite Catalyst
Autorzy:: Agustina, Tuty Emilia
Heraldy, Eddy
Hadiah, Fitri
Hasanudin
Arita, Susila
Prakoso, Tirto
Sari, Tuti Indah
Suprapto, Bhakti Yudho
Putra, Muhammad Firdaus Kusuma
Ramadhani, Dimas Luthfi
Powiązania:: https://bibliotekanauki.pl/articles/2105272.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: biodiesel
esterification
transesterification
hydrotalcite
Opis:: Biodiesel is currently preferred for consumption and has been widely used as a substitute for diesel. This study aimed to determine the effect of various methanol-to-oil ratios in the esterification process and also the effect of hydrotalcite catalyst weight on the transesterification product. The catalyst was characterized with SEM, XRD, FTIR, and TG-DTG-DTA. The esterification process was operated at various oil-to-methanol ratios, i.e., 1:12–1:36 and the transesterification was performed using several catalyst weights, 0.5%–2.5%. The results showed that the optimum conditions of esterification were at the 1:30 molar ratio of oil-to-methanol, which decreased the amount of acid number by 95.75%, while the optimum condition of transesterification was at 1.5% catalyst weight. The characteristics of biodiesel using 0.5–2% hydrotalcite catalyst (acid number, total glycerol, free glycerol, ester levels, viscosity, density, oxidation stability) have met the Indonesian biodiesel standard of SNI-04-7182-2012.
Źródło:: Journal of Ecological Engineering; 2022, 23, 6; 172--181
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Production of Biodiesel from Local Available Algae in Jordan
Autorzy:: Aljabarin, N.
Al Jarrah, A.
Powiązania:: https://bibliotekanauki.pl/articles/123308.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: algae
biodiesel
Almansora
Jordan
Opis:: The present study aims at producing diesel out of algae. The production of biodiesel was performed at Tafila Technical University laboratories. The algae were brought from Almansora stream at Tafila governorate - Jordan and afterwards dried in an oven at 80 °C for 12 hours. The dried algae were ground using disc mill until powder was obtained. The powdered algae underwent a distillation process with the addition of iron sulphate hydrate to the algae using a distillation column in order to extract the oil. Methanol was added to the oil, which was obtained from the distillation and using potassium hydroxide as a catalyst, the product was then separated in a funnel for about 10 hours until two layers of the solution were obtained; the organic layer represents the biodiesel. The biodiesel attributes are similar to the diesel oil, except that it reduces the emission of carbon dioxide CO₂ and there is no emission of sulphur dioxide SO₂.
Źródło:: Journal of Ecological Engineering; 2017, 18, 6; 8-12
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: The Effect of External Transport on Energetic Efficiency of Biodiesel Production
Autorzy:: Orynycz, O.
Wasiak, A.
Powiązania:: https://bibliotekanauki.pl/articles/123625.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: biodiesel
biofuel production
mathematical modelling
rapeseed
Opis:: In several our publications energetic efficiency of biofuel production was defined as a ratio of the amount of energy obtained in a form of biofuel to the sum of energy contributions necessary to conduct production processes on all the production stages. It was also shown that such a definition enables subsequent inclusion of production steps due to additivity of reciprocals of energetic efficiency determined separately for each step. In the present work, several scenarios of the transport of biomass between plantation and industrial facility converting biomass into biofuel are considered, appropriate values of energetic efficiency are computed and compared. The analysis is confined to biodiesel production based on rapeseed. The results show substantial differences caused by various approaches to that stage of transport.
Źródło:: Journal of Ecological Engineering; 2017, 18, 2; 57-62
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: Ecotoxicological Effects of Biodiesel in the Soil
Autorzy:: Hawrot-Paw, M.
Izwikow, M.
Powiązania:: https://bibliotekanauki.pl/articles/123527.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: biodiesel
soil
microorganisms
microbial biomass
bioassays
ecotoxicity
Opis:: The paper analysed the toxic effect of the presence of biodiesel in the soil. The study involved tests with microorganisms that evaluated changes in their number and activity, and phytotoxicity tests with garden cress (Lepidium sativum) and spring barley (Hordeum vulgare). Biodiesel produced in laboratory conditions and biofuel purchased at a petrol station were introduced to the soil. Two levels of contamination were used – 1% and 5% (per dry mass of the soil). Based on the results, it was discovered that biofuels both stimulated and reduced the number and activity of microorganisms. The changes observed depended on the type of biofuel and, most often, on its dose. Laboratory biodiesel exhibited more toxic effects, especially for actinobacteria and fungi. The tested plants showed diverse sensitivity to the presence of biodiesel. Given the determined value of the germination index, laboratory biodiesel was more toxic to spring barley and commercial biofuel to garden cress. In both cases, toxicity increased with an increase in the amount of biofuel.
Źródło:: Journal of Ecological Engineering; 2015, 16, 5; 34-39
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 5.

Tytuł:: Possibility of Using Golden Shower (Cassia Fistula) and Poinciana (Delonix regia) Seeds Oil as Non-Conventional Feedstocks for the Production of Biodiesel in Egypt
Autorzy:: Algharib, Ahmed Mohamed
Abd El Hakim, Ahmed Fawzy
El-Khamissi, Haitham Ahmed
El-Hamamsy, Sam Mohamed
Powiązania:: https://bibliotekanauki.pl/articles/2027852.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: biodiesel
Cassia fistula
Delonix regia
linoleic acid
Opis:: The tree pods and seeds of Cassia fistula (CF) and Delonix regia (DR) were collected from the Faculty of Agriculture garden at Al-Azhar University in Cairo, Egypt, during the spring season of 2019. The physical and chemical aspects of pods and seeds were examined. The percentage of oil and fatty acid compositions were then investigated. The pod weights ranged from 61.34 g in DR to 89.29 g in CF, with pod lengths ranged from 42.26 cm (DR) to 62.64 cm (CF). InCassia fistula, the seed weight per pod, the number of seeds per pod, and the weight of 100 seeds per pod were 12.29 g, 84, and 17.22 g, respectively; whereas in Delonix regia, they were 11.31 g, 23.5, and 34.25 g. The C. fistula had high levels of chlorophyll a and b, as well as total chlorophyll (1.016, 1.025, and 2.041 mg $g^{-1}$ DW), while D. regia recorded the lowest levels (0.513, 0.228, 0.741 mg $g^{-1}$ DW). The results also showed that the C. fistula leaves were also heavier than the D. regia leaves, weighing 14.96 g and 5.02 g fresh and dry weight for C. fistula and 10.06 g and 3.87 g fresh and dry weight for D. regia, respectively. The seeds of both plants were chemically tested, with percentages of Lipid, Moisture, Protein, Ash, Fibers, and Total Carbohydrates of 2.11, 10.79, 17.10, 4.95, 5.51, and 59.53 percent for Cassia fistula and 2.13, 6.52, 18.75, 0.37, 13.28, and 58.95 percent for Delonix regia, respectively. Eleven fatty acids were found in both plants seeds oil (lauric, myristic, palmitic, palmitoleic, stearic, oleic, eliadic, linoleic, linolenic, gondoic, and behenic acid). A slight variation was noted in linoleic acid, which was the major component of both oils ranging from 52.17 (CF) to 54.77% (DR). The prediction of the iodine values resulted in 97.6 and 98.8 for Cassia fistula and Delonix regia, respectively, which is a promising model for the production of biodiesel in the future.
Źródło:: Journal of Ecological Engineering; 2021, 22, 10; 19-27
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 6.

Tytuł:: Energy Valorization of Olive Mill Waste Cake – Extraction of Vegetable Oil and Transesterification
Autorzy:: Mehdaoui, Imane
Majbar, Zineb
Hassani, El Mokhtar Saoudi
Mahmoud, Rachid
Atemni, Ibrahim
Ben Abbou, Mohamed
Taleb, Mustapha
Rais, Zakia
Powiązania:: https://bibliotekanauki.pl/articles/24201716.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: olive mill waste cake
extraction
valorisation
vegetable oil
transesterification
biodiesel
Opis:: The olive mill wastewater, effluents from the trituration of olives, are treated in most Mediterranean countries by natural evaporation. However, this method of treatment is a source of air and soil pollution by the generation of solid waste, called olive mill waste cake. This work focused on extracting of vegetable oil from this by-product for biodiesel production by transesterification. The extraction took place with a Soxhlet extractor, using hexane as solvent. The vegetable oil and biodiesel were characterized by measuring the physicochemical parameters that identify them according to AFNOR standards. The extraction results show that the oil yield is 21.28%. The oil obtained is characterized by density, water and ash content, acidity, saponification, peroxide and ester. The yield of the oil esterification reaction is 86.41% or about 185 Kg of biodiesel/ton of olive mill waste cake, and in terms of energy 2783.7 MJ or 2 GW.t-1. The biodiesel produced is comparable to petroleum diesel according to EN 14214, 2013.
Źródło:: Journal of Ecological Engineering; 2023, 24, 5; 306--315
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 7.

Tytuł:: Biodiesel Production from Crude Palm Oil Using Kapok Skin KOH (Ceiba Pentandra) Catalyst as Solid Green Catalyst
Autorzy:: Jalaluddin
Ginting, Zainuddin
Maliki, Syariful
Setiawan, Arif
Zulfa
Powiązania:: https://bibliotekanauki.pl/articles/2086431.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: biodiesel
crude palm oil
high purity
Ceiba Pentandra
THF
tetrahydrofuran
Opis:: Biodiesel is one type of renewable alternative energy that has great potential to be developed. Biodiesel is a fuel consisting of a mixture of mono-alkyl esters of long-chain fatty acids made from renewable sources, such as vegetable oils or animal fats, one of which is crude palm oil (CPO). Crude palm oil contains free fatty acids in high levels, so treatment is needed to reduce free fatty acids by a reaction known as the esterification reaction. Then, the transesterification process is carried out to produce biodiesel (methyl ester). The purpose of this study was to analyze the effect of catalyst mass, a mole ratio of CPO to moles of methanol and the effect of adding THF co-solvent to biodiesel purity. The catalyst used is a heterogeneous catalyst from kapok fruit peel waste. Kapok fruit rind was calcined at 700°C for 8 hours. The independent variable varied the mole ratio of oil to methanol in a 1:4 ratio; 1:6; 1:8; and 1:10 with a catalyst weight variation of 3 and 4%. Meanwhile, for the addition of co-solvent, variations of THF: methanol v/v 1:1 and 2:1, were carried out. The biodiesel properties such as density, viscosity, water content and acid number, were evaluated and compared with the Indonesian National Standard. The results showed that the transesterification reaction with the addition of co-solvent resulted in a higher methyl ester content than that without the addition of co-solvent. The highest yield of methyl ester without the addition of co-solvent was 79.16%, while the yield of the methyl ester with the addition of THF co-solvent with a ratio of 1:1 and 2:1 v/v to methanol was 90.09 and 94.09%, respectively. The highest methyl ester content (94.09%) was achieved by the addition of THF: methanol = 2:1, CPO: methanol molar ratio = 1:6 and 4 wt% catalyst weight. The results obtained in this study indicate that a green catalyst made from kapok skin can be used to produce biodiesel and also the addition of co-solvent can increase the yield of methyl esters, so that high purity is obtained.
Źródło:: Journal of Ecological Engineering; 2022, 23, 5; 286--292
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 8.

Tytuł:: Cultivation of Oleaginous Microalgae Scenedesmus obliquus on Secondary Treated Municipal Wastewater as Growth Medium for Biodiesel Production
Autorzy:: Eida, M. F.
Darwesh, O. M.
Matter, I. A.
Powiązania:: https://bibliotekanauki.pl/articles/123215.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: biodiesel
microalgae
Scenedesmus
municipal wastewater biomass
oil contents
fatty acid composition
Opis:: Local single cell microalgae isolated from a wastewater swamp and identified as Scenedesmus obliquus was used to determine its applicability for utilization of domestic wastewater for biomass and lipid production. Secondary treated domestic wastewater with or without mixing of growth medium was used to cultivate S. obliquus for the biomass and lipid production as a renewable feedstock for biodiesel. S. obliquus showed the highest OD when grown in 100% Bold’s basal medium (BBM). S. obliquus utilized 95.2% and 78.5% of P and N contents, respectively, when grown in 25% WW+75% BBM mixture and the utilization efficiency of both elements decreased with the increasing wastewater portion in the mixture. Although the BBM displayed the highest dry biomass and lipid production (25.15% of the cell dry biomass). The lowest values were recorded for the uninoculated wastewater, followed by 100% wastewater enriched with S. obliquus. The obtained data revealed that the lipid classes of S. obliquus differs according to the cultivation medium and conditions. The highest percentage of C16-C18 fatty acids (54.76% from total lipids) were recorded in case of algae cultivated in 100% wastewater, followed by 46.96% in case of 100% BBM medium. These results suggest the utilization of mixtures containing a higher portion of secondary treated wastewater, such as 75% WW+25% BBM or 50% WW+50% BBM, could increase the economical production of the lipid-rich microalgae S. obliquus for biodiesel through saving water and nutrients.
Źródło:: Journal of Ecological Engineering; 2018, 19, 5; 38-51
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 9.

Tytuł:: Biodiesel Production using Oil Extracted from Cooling Pond Wastewater with Esterification of Sulfonated Carbon Catalyst and Transesterification of $Na_2CO_3$ Catalyst
Autorzy:: Kolakaningrum, Chandra Fitri
Agustina, Tuty Emilia
Hadiah, Fitri
Powiązania:: https://bibliotekanauki.pl/articles/2027900.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: cooling pond wateswater
esterification
transesterification
sulfonated carbon
sodium carbonate
biodiesel
Na₂CO₃
Opis:: While high production of palm oil improves the community economy, it has the potential to damage the environment because it produces the waste containing quite a lot of residual oil. The wastewater generated by this production process flows into the cooling pond before it is further processed in aerobic and anaerobic ponds. The residual oil contained in the cooling pond can be collected and used, e.g. as raw material for biodiesel production. This research aimed to produce biodiesel by utilizing the oil extracted from cooling pond wastewater through the esterification method with a sulfonated carbon catalyst and a transesterification method with the $Na_2CO_3$ catalyst. The sulfonated carbon catalyst was made from the palm kernel shells as a solid waste of the palm oil plant. In order to study the optimum amount of catalyst usage, the catalyst ratio was varied, i.e. 8–16% for the esterification process and 1–3% for the transesterification process. The reuse performance of sulfonated carbon catalysts was varied three times. On the basis of the research results, sulfonated carbon catalysts were proven to be effective as heterogeneous catalysts in the esterification process because they can reduce acid level to below 5 mg KOH/g oil. The sulfonated carbon catalyst ratio of 12% was the optimum ratio which can reduce the acid level to 4.62 mg KOH/g oil. The reuse of sulfonated carbon can reduce the acid level to 6.9 mg KOH/g oil at the first reuse. In the transesterification process, the optimum ratio of the $Na_2CO_3$ catalyst of 3% was found. The biodiesel produced has met the biodiesel characteristics of National Indonesian Standard (SNI of 7182:2015) with the saponification number of 197.18 mg KOH/g oil, free glycerol of 0.09%, FAME content of 96.79%, and density of 886 kg/$m^3$.
Źródło:: Journal of Ecological Engineering; 2021, 22, 10; 51-62
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "Biodiesel" wg kryterium: Temat

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język