Study on Thermal Volatilization of Soybean Biodiesel and Its Blends

2012 ◽  
Vol 516-517 ◽  
pp. 212-217
Author(s):  
Yong Bin Lai ◽  
Xiu Chen ◽  
Wu Jie Ge ◽  
Cui Ying Lu
Keyword(s):  
Methyl Esters ◽  
Gas Chromatography Mass Spectrometry ◽  
Biodiesel Fuel ◽  
Compression Ignition Engine ◽  
Long Chain Fatty Acid ◽  
Yield Information ◽  
Soybean Biodiesel ◽  
Ignition Quality ◽  
Long Chain

Thermal analysis has been employed to yield information on the volatility of the biodiesel/petrodiesel since the volatility influences the ignition quality of the fuels in a compression ignition engine. The chemical composition of -10 petrodiesel (-10PD) and soybean biodiesel (SME) was analyzed by gas chromatography-mass spectrometry. The thermal volatilization of biodiesel and its blends was investigated by thermogravimetry and liquid volatile theory. Volatile index was put forward for describing biodiesel/petrodisel volatility. A good correlation model was proposed for calculate the biodiesel/petrodiesel volatility by biodiesel blending ratio. The study showed that -10PD was mainly composed of long chain alkanes: C8–C26. SME was mainly composed of long chain fatty acid methyl esters: C14:0–C24:0, C16:1–C22:1, C18:2 and C18:3. The volatile indexes of SME and -10PD were, respectively, 1.74E-04 and 3.64E-05. The biodiesel fuel was considerably more volatile in comparison to the petrodiesel fuels. The SME/-10PD volatility had relation to SEM blending ratio, it was better with increasing the SME blending ratio.

The Thermal Volatilization of Petrodisel/Biodiesel from Waste Oil

2011 ◽  
Vol 347-353 ◽  
pp. 2656-2660
Author(s):  
Xiu Chen ◽  
Yin Nan Yuan ◽  
Yong Bin Lai
Keyword(s):  
Chemical Composition ◽  
Methyl Esters ◽  
Gas Chromatography Mass Spectrometry ◽  
Waste Oil ◽  
Compression Ignition Engine ◽  
Yield Information ◽  
Composition And Structure ◽  
Similar Chemical ◽  
Ignition Quality ◽  
Long Chain

Thermogravimetry (TG) has been employed to yield information on the thermal volatilization of the fuels since the volatility influences the ignition quality of the fuels in a compression ignition engine. The chemical composition of -10 petrodiesel (-10PD) and waste oil biodiesel (WME) was analyzed by gas chromatography-mass spectrometry. The thermal volatilization of biodiesel and its blends was investigated by TG and liquid volatile theory. Volatile index was put forward for describing biodiesel/petrodisel volatility. A good correlation model was proposed for calculate the biodiesel/petrodiesel volatility by biodiesel blending ratio. The study showed that -10PD and WME had similar chemical composition and structure. -10PD was mainly composed of long chain alkanes: C8–C26. WME was mainly composed of long chain fatty acid methyl esters: C14:0–C22:0, C16:1–C22:1, C18:2 and C18:3. The volatile indexes of WME and -10PD were 1.47E-04 and 3.64E-05, respectively. The biodiesel was considerably more volatile in comparison to the petrodiesel. The WME/-10PD volatility was better with increasing the biodiesel blending ratio.

Volatility of Biodiesel Obtainted from Rapeseed Blends with Petroleum Diesel

2011 ◽  
Vol 236-238 ◽  
pp. 159-163
Author(s):  
Xiu Chen ◽  
Yin Nan Yuan ◽  
Yong Bin Lai
Keyword(s):  
Fatty Acid ◽  
Mass Fraction ◽  
Fatty Acid Methyl Esters ◽  
Methyl Esters ◽  
Gas Chromatography Mass Spectrometry ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Acid Methyl ◽  
Ignition Quality

The volatility has been studied since it influences the ignition quality of the fuels in a compression ignition engine. The chemical composition of -10# petrodiesel (-10PD) and rapeseed biodiesel (RME) was analyzed by gas chromatography-mass spectrometry (GC-MS). Volatility of -10PD and RME was studied by thermogravimetry (TG) and liquid volatile theory. Volatile index V was put forward for describing -10PD/RME volatility. A good correlation model was proposed for calculate the -10PD/RME volatility by RME blending ratio. The study showed that -10PD was mainly composed of alkanes: C8-C26. RME was mainly composed of saturated fatty acid methyl esters (SFAME): C14:0-C24:0, unsaturated fatty acid methyl esters (UFAME): C16:1-C22:1, C18:2 and C18:3. The mass fraction of SFAME and UFAME was 14.69% and 83.40%, respectively. RME is considerably more volatile in comparison to -10PD. The -10PD/RME volatility has relation to RME blending ratio. The volatility of B0-B20 is very close to -10PD. The volatility of B20-B100 is better with increasing the RME blending ratio.

Ignition Quality of Biodiesel from Cottonseed and Soybean Oil

2011 ◽  
Vol 347-353 ◽  
pp. 2651-2655
Author(s):  
Yong Bin Lai ◽  
Yin Nan Yuan ◽  
Xiu Chen
Keyword(s):  
Fatty Acid ◽  
Ignition Temperature ◽  
Methyl Esters ◽  
Acid Methyl Ester ◽  
Gas Chromatography Mass Spectrometry ◽  
Chemical Compositions ◽  
Scanning Calorimetry ◽  
Acid Methyl ◽  
Ignition Quality

The thermal analysis has been employed to yield information on the biodiesel ignition quality since the ignition quality influences the combustion and exhaust emissions of the fuels in a compression ignition (CI) engine. The chemical compositions of -10 petrodiesel (-10PD), soybean-based biodiesel (SME) and cottonseed-based biodiesel (CME) are analyzed by gas chromatography-mass spectrometry (GC-MS). Ignition temperature of -10PD, SME and CME is determined by thermogravimetry-differential scanning calorimetry (TG-DSC). The study shows that the biodiesel is mainly composed of fatty acid methyl esters: C14:0–C24:0, C16:1–C22:1, C18:2 and C18:3. Biodiesel ignition quality is better than petrodiesel. The ignition temperature of CME and SME is 207.4 and 213.9 °C respectively. The ignition quality of biodiesel is better with shorter carbon chain lengths and more saturated fatty acid methyl ester (SFAME).

Stereoselective synthesis of unsaturated very long chain fatty acid methyl esters

1999 ◽  
Vol 40 (21) ◽  
pp. 4041-4044 ◽  
Author(s):  
Julie Defretin ◽  
Jairo Saez ◽  
Xavier Franck ◽  
Reynald Hocquemiller ◽  
Bruno Figadère
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Methyl Esters ◽  
Stereoselective Synthesis ◽  
Methyl Esters ◽  
Chain Fatty Acid ◽  
Long Chain Fatty Acid ◽  
Acid Methyl ◽  
Long Chain

PP531 Quality Of Life Of Patients With Long-Chain Fatty Acid Oxidation Disorders Before And During Treatment With Triheptanoin

2020 ◽  
Vol 36 (S1) ◽  
pp. 41-41
Author(s):  
Eliza Kruger ◽  
Deborah Marsden ◽  
Arielle Bensimon ◽  
Erin Cook ◽  
Eli Orvis ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Fatty Acid ◽  
Fatty Acid Oxidation ◽  
Chain Fatty Acid ◽  
Acid Oxidation ◽  
Long Chain Fatty Acid ◽  
Fatty Acid Oxidation Disorders ◽  
Conversion Algorithm ◽  
Long Chain

IntroductionLong-chain fatty acid oxidation disorders (LC-FAOD) are a group of serious diseases in which patients are at risk of metabolic decompensation, resulting in cardiomyopathy, hypoglycemia and rhabdomyolysis and premature mortality. In addition, LC-FAOD are a burdensome disease that adversely effects quality of life (QoL) via symptoms of muscle pain, fatigue, and a difficult diet. Previous studies have reported improvements in QoL during treatment with triheptanoin as measured by short form (SF) instruments. This study sought to convert the QoL measure into a utility value for a sample of patients with LC-FAOD at baseline and 78 weeks during treatment with triheptanoin.MethodsIn an open-label Phase 2 study of triheptanoin (UX007-CL201, NCT01886378), caregivers of patients (n = 9/23 enrolled) or patients aged 18+ years (n = 6/6 enrolled) completed the SF-10 or the SF-12v2, respectively. Component summary scores at baseline and 78-week during treatment period were converted to EuroQol-Five Dimension (EQ-5D) utility (with zero representing death and 1.0 perfect health) using a published conversion algorithm (Lawrence and Fleishman 2004). Generalized linear mixed-effects models with individual-level random effects were used to estimate the utility values.ResultsAt baseline, patients’ utility was estimated to be 0.365 (standard error [SE] = 0.090) compared with 0.629 (SE = 0.072) 78-weeks during treatment, a significant improvement (p = 0.0073). In a sensitivity analysis using SF-12v2 data only (that is, only adult patients), utility estimates were 0.498 (SE = 0.084) at baseline versus 0.690 (SE = 0.068) during treatment (p = 0.0499). No patients had a major clinical event during the SF instrument recall period, indicating the benefit was driven by day-to-day improvement in QoL.ConclusionsTreatment with triheptanoin resulted in a substantial improvement in daily QoL for patients with LC-FAOD. Limitations of this study include that the estimation of utilities is from a single-arm study with small sample sizes and that the assessment of utility was based on a conversion algorithm rather than direct measurement. Nevertheless, results indicate significant improvement in QoL for patients treated with triheptanoin.

ChemInform Abstract: Stereoselective Synthesis of Unsaturated Very Long Chain Fatty Acid Methyl Esters

ChemInform ◽  
2010 ◽  
Vol 30 (32) ◽  
pp. no-no
Author(s):  
Julie Defretin ◽  
Jairo Saez ◽  
Xavier Franck ◽  
Reynald Hocquemiller ◽  
Bruno Figadere
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Methyl Esters ◽  
Stereoselective Synthesis ◽  
Methyl Esters ◽  
Chain Fatty Acid ◽  
Long Chain Fatty Acid ◽  
Acid Methyl ◽  
Long Chain
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