This article throws a light on the recent situation of oilseed as well vegetable oil production in world referring to those Egypt. Over last 30 years, crop increased 240%, while increase area and yield was 82 48%, respectively. The main produced is soybean whereby it represents more than 50% total world. Most common types which are currently available categorized this according suitability for their oils human consumption whether they considered source some functional ingredients. Oils...

Abstract The kinetics of oxirane ring cleavage in epoxidized soybean oil have been studied using glacial acetic acid at 60, 70, 80 and 90°C. It was shown that the reaction can be successfully modelled as first order with respect to epoxide concentration second acid. velocity constant 70°C found 2 × 10 −3 1 hr −1 mol −2 , frequency factor, A, = 2.321 7 energy activation, E a 15.84 k cal . effects temperature on net yield epoxides by situ epoxidation were also basis predicted kinetic parameters system.

Industrial production of biodiesel fuel in Egypt by the transesterification vegetable oils is being faced with problem feedstock shortage. imports annually about 90% its needs as edible for human consumption. The direct esterification fatty acids that can be obtained from oil and soap industrial sector huge quantities each year (around 16 thousand tons) may a proper solution to this problem. According results previous study [1], produced following approach using methyl alcohol was quite...

Abstract The expected depletion of natural petroleum resources in the near future and pollution environment due to excessive carbon dioxide emissions by fossil fuel its adverse effect on global warming constitute two major problems facing whole world. In view these problems, much research work is now directed worldwide find fuels alternative those derived from which should be renewable more environmentally friendly fuels. Biodiesel a blend fatty acid esters with alcohols considered most...

Abstract This research was proposed to investigate the utilization of used frying oil as an alternative fuel for diesel engines. Edible oils that have been several times purposes usually contain undesirable components make them unsuitable further use human consumption. The in this chemically modified reduce its viscosity by thermal cracking presence 2% calcium oxide a catalyst. product then evaluated engine according properties and performance fueled with blend (50% blend). results shown...

The solvent extraction process of jojoba oil from the meal cake obtained after mechanical pressing seeds was studied. Commercial hexane and petroleum ether were used as solvents carried out at temperatures ranging 30 to 55 °C using solvent-to-solid ratios, R between 2 15 L/kg. equilibrium compositions solid phases determined. Based on data, partition coefficient or distribution ratio, D both estimated. Also, number stages necessary achieve a certain degree recovery has been determined...

Four different clays were compared for their capacities to adsorb chlorophyll and carotenoids; two major pigments in vegetable oils at 30 100EC.The used include Fulmont, Tonsil N, ACC a factory grade bentonitic clay.Extracts of carotenoids prepared from rocket plant carrot, respectively.Each extract was then mixed with refined, bleached deodorized edible sunflower oil giving blends, one rich chlorophyll, while the other carotenoids.The concentration each pigment adjusted, so that it will...

CASTOR oil as well used cooking have been catalytically cracked using three types of catalysts being zinc chloride, sodium carbonate and calcium oxide the products cracking were tested for their chemical physical properties relevant to use fuels.Products obtained by castor found be more suitable bio-kerosene while those catalytic biodiesel.Therefore, product has then its effect on performance a diesel engine compared regular fuel.Blends with fuel running at different loading specific...

Abstract Cottonseed oil was thermally decomposed at 450°C using 1 % Na2 3 as a catalyst. The pyrolyzed analyzed for its content of hydrocarbons and found to be made mainly ot alkanes (70%) in addition alkenes aromatics with carbon number ranging from 8 20. Fuel properties the cracked were characterized compared those no. 2 diesel fuel. pyrolyzate had lower viscosity, flashpoint, pour point than calorific values both oils same, but cetane pyrolytic lower.

Abstract The kinetics of the esterification fatty acid with some short chain alcohols have been investigated at different temperatures: 50, 60, and 70°C. Monhydric used in this study include methyl, propyl, butyl alcohols. Sulphuric was as a catalyst concentrations from 0.008 to 0.02 molar H+ while alcohol/fatty mole ratio 20:1. effect temperature, concentration, alcohol length on reaction rate constant during course investigated. Also, influence temperature kinetic constants determined by...

The potential of ricebran oil as a feedstock for the production fuel diesel engines alternative to regular has been assessed. Esterification rate crude with methyl alcohol was studied using different volumetric ratios oil, catalyst loads and types. Catalysts used were sulfuric acid at concentration 2% oil/alcohol mixture in addition hydrochloric Amberlite IR-120 cation exchange resin same molar H+ case acid. reaction fastest which then prepare esters methyl, ethyl, propyl butyl alcohols....

Abstract Esters of jatropha oil with short chain alcohols were prepared and evaluated as biodiesel fuel. The used include methyl, ethyl, propyl, butyl alcohols. volumetric ratio alcohol to was 2:1 the esterification carried out at boiling point alcohol. Sulfuric acid a catalyst concentration in reaction mixture equivalent 0.17 molar H+. properties esters relevant its use fuel, such calorific value, flash point, viscosity, compared those standard diesel results have shown that value very...

An alternative fuel to solar used in diesel engines was prepared from sunflower oil. Since the oil too viscous be efficiently as fuel, it chemically modified reduce its viscosity. Chemical modification of made by catalyzed esterification with short chain alcohols being methyl and ethyl alcohols. The products were then evaluated according their properties compared fuel. considered viscosity, pour point, calorific value, flash cetane number addition some other properties. In addition,...

This article throws a light on the current situation of edible oil industrial sector in Egypt.The existing wide gap between consumption rate Egypt and production from local oilseed is discussed.The type oils imported annually to cover this their quantities are reported.Processing steps for have been briefly illustrated.Important parameters successful industry also reported companies already established extraction outlined whether they belong public or private sectors as well which still...

The selectivity of hexane isomers towards cottonseed pigments and colour fixed was illustrated by using spectrophotometric analysis crude, refined bleached oils, refinability bleachability criteria. Crude oil contains besides the alkali-refinable gossypol gossypurpurin, several pigments. Anhydrogossypol, gossyfulvin, anthocyanins carotenoids seem to be responsible for colour-fixation oil. Only are eliminated bleaching. Selectivities in following order: isohexane less than n-hexane...

Colour fixed pigments can be detected in refined and bleached oils rather than crude oils, since the latter their absorption is masked up by gossypol pigments. Isohexane most desirable hexane isomer. Though it produces darker yet refinability bleachability increases as percentage of isohexane normal hexan increases. It has also advantage extracting with lowest refining loss highest content. Recovery gossypol, which alkali refinable, oil results a superior quality meal. Benzene, on other...

Increase of environmental problems and depletion fossil fuels are the driving forces to promote biodiesel as an alternative fuel in diesel engines. In present work, was prepared by transesterification waste cooking oil with methanol its physical chemical properties were measured found be within acceptable limits standard specifications regular fuel. Performance emissions characteristics a engine running using (B100) blends kerosene then assessed compared those (D100). Two have been used this...

This research was proposed to investigate the utilization of used frying oil as an alternative fuel for diesel engines. Edible oils that have been several times purposes usually contain undesirable components make them unsuitable further use human consumption. The in this chemically modified reduce its viscosity by thermal cracking presence 2% calcium oxide a catalyst. product then evaluated engine according properties and performance fueled with blend (50% blend). results shown obtained has...

Ricebran oil; a non edible oil, was thermally decomposed using different loads of calcium oxide as catalyst. The fuel properties the cracked product were evaluated compared to those diesel fuel. considered included calorific value, flash point, viscosity, pour distillation characteristics, cetane number in addition some other properties. results had shown that oil quite similar standard value 80-90% and viscosity sligthy higher. prepared advantageous over former completely free from sulfur,...

Industrial audit of a complex oil and soap factory has been carried out. The produces edible oils, fatty acids, soap, crude, industrial pharmaceutical glycerin, powdered detergents, animal fodder, sodium potassium silicates, hypochlorite hypochloric acid. shows that there were wide range pollution prevention opportunities which could be implemented with significant financial advantages for the as well reducing environmental pollution. Cost benefits recommended improvements have estimated....

ABSTRACTZeolite-bacterial cellulose nanocomposite membrane (ZBCN) has been prepared and evaluated as a catalyst in the transesterification of waste cooking oil (WCO) to give biodiesel. Bacterial was obtained during cultivation Komagataeibacter bacterial isolate; meanwhile, zeolite A (ZA) from Egyptian ores. The results confirmed that, amount triglyceride (TG) converted into fatty acid methyl ester (FAME) ≥77%, while total conversion TG other compounds were 84.4% 7.4%, respectively, 9 h...

Partial glycerides were prepared by glycerolysis of sunflower oil in presence lipase enzyme as catalyst. Six lipases different origins used and compared for their catalytic activity. These include Chromobacterium lipase, pancreatic Rhizopus arrhizus lyophilized (plant lipase) addition to two preparations derived from japonicas; Lilipase A-10 B-2. was found be the most active catalyst whereas lipase; a plant preparation wheat germ least active. The results have also shown that type affects...