Biodiesel fuel from rapeseed oil, methanol, and KOH. Analytical methods in research and production

Komers, Karel; Stloukal, Radek; Machek, Jaroslav; Skopal, František; Komersová, Alena

doi:10.1002/(sici)1521-4133(199811)100:11<507::aid-lipi507>3.0.co;2-6

Cited by 44 publications

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“…The water content was determined by volumetric Karl Fischer titration with biamperometric end-point indication using an automatic titrator 736 GP Titrino®, Metrohm. Methanol and esters were determined by GC with FID detection as described by Komers et al (1998).…”

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confidence: 99%

Treatment of glycerol phase formed by biodiesel production

Hájek

Skopal

2010

Bioresource Technology

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163

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Glycerol is a by-product of biodiesel produced by transesterification and is contained in the glycerol phase together with many other materials such as soaps, remaining catalyst, water, and esters formed during the process. The content of glycerol is approximately 30-60 wt.%. In this paper, treatments of the glycerol phase to obtain glycerol with a purity of 86 wt.% (without distillation) and a mixture of fatty acids with esters (1:1) or only a mixture of fatty acids with a purity of 99 wt% are presented. The treatment was carried out by removing of alkaline substances and esters. Fatty acids were produced by saponification of the remaining esters and subsequent neutralization of alkaline substances by phosphoric, sulfuric, hydrochloric or acetic acids. Salts are by-products and, in the case of phosphoric acid can be used as potash-phosphate fertilizer. The process of treatment is easy and environmentally friendly, because no special chemicals or equipment are required and all products are utilizable.

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confidence: 99%

Treatment of glycerol phase formed by biodiesel production

Hájek

Skopal

2010

Bioresource Technology

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163

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“…The glyceride content was determined by the HPLC isocratic analysis as described by Komers et al (1998). The glycerol content in the glycerol phase (GP) was determined by HPLC equipped with a LCP 4000.1 pump, a Separon TM SGX column with a particle size of 7 µm, and a refractometric detector (RIDK 102, Laboratorní přístroje Praha).…”

Section: Methodsmentioning

confidence: 93%

Combined effect of water and KOH on rapeseed oil methanolysis

Kwiecień

Hájek

Skopal

2010

Bioresource Technology

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“…1, and, for futher reference, is likewise documented elsewhere (Komers et al, 1998;De et al, 1999;Komers et al, 2001;Wu et al, 2007). Transesterification is the procedure of excess alcohol mixed with a catalyst, for example, NaOH, and then mixed with triglyceride to form fatty acid esters and glycerol.…”

Section: Methodsmentioning

confidence: 99%

Emissions Study and Estimation of Carbon Dioxide Production from Jatropha Curcas Oil Biodiesel

Lin

Chang

2016

Aerosol Air Qual. Res.

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The goal of this study was to analyse the combustion characteristics and emissions of Jatropha curcas biodiesel (JCB) when run in a diesel engine. Jatropha curcas oil was used to produce Jatropha curcas biodiesel (JCB) through a transesterification process. The major fuel properties of JCB, including the acid value, kinematic viscosity, flash point, gross heating value, and iodine value, were determined and compared with that of soybean biodiesel (SBM), sunflower seed biodiesel (SFM), mackerel fish oil biodiesel (MB), and premium diesel (D). JCB had a higher density, acid value, kinematic viscosity, iodine value and flash point, but a lower gross heating value, than D. JCB was then used to analyze combustion characteristics, CO, CO 2, NO, NO x , SO 2 , and particulate matter (PM), under varied engine speeds and varied engine loads. The experimental results show CO 2 concentration increased with increasing engine loads for all fuels. Engine trials on D exhibited better combustion efficiency at lower engine loads (0 kW-4 kW) but engine trials on JCB exhibited better combustion efficiency for higher engine loads (5 kW-8 kW). JCB emitted more NO and NO x on a loaded engine. Engine trials on JCB emitted higher PM concentration when the engine was not loaded, while engine trials on MB produced higher PM concentration when the engine was loaded. The estimated CO 2 emissions for JCB, MB, and D are 9221.3, 9617.2, and 10185.0 g (gal fuel) -1 , respectively.

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Biodiesel fuel from rapeseed oil, methanol, and KOH. Analytical methods in research and production

Cited by 44 publications

References 0 publications

Treatment of glycerol phase formed by biodiesel production

Treatment of glycerol phase formed by biodiesel production

Combined effect of water and KOH on rapeseed oil methanolysis

Emissions Study and Estimation of Carbon Dioxide Production from Jatropha Curcas Oil Biodiesel

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