نتایج جستجو برای: especially crude oils

تعداد نتایج: 453404  

Journal: :Journal of chromatographic science 2012
Andrew Tipler Lee Marotta Frank DiSanzo Heidi Grecsek

The accurate and precise determination of methanol in crude oils at concentrations less than 10 ppm is of economic value to the petroleum industry. This report presents the optimization, results and long term performance of a flow switching device MDGC hardware, the Swafer™, for the rapid and precise analysis of methanol from approximately 0.4 ppm (w/w) to 1000 ppm. The use of low temperature i...

Journal: :Bioresource technology 2015
Chao Gai Yi Li Nana Peng Aonan Fan Zhengang Liu

This study investigated co-liquefaction of microalgae (Chlorella pyrenoidosa, CP) and lignocellulosic biomass (Rice husk, RH) in subcritical water for bio-oil production. The effects of liquefaction temperature (200-350°C), residence time (10-90min), solid concentration (10-30wt.%) and mass ratio of CP/RH on product distribution were investigated. The results showed that the highest yield of bi...

2014
Alex C. M. Oliveira Matthew R. Miller

The beneficial health effects of a diet rich in n-3 long chain polyunsaturated fatty acids (n-3 LC-PUFA) have been extensively researched in recent years. Marine oils are an important dietary source of n-3 LC-PUFA, being especially rich in two of the most important fatty acids of this class, EPA (eicosapentaenoic acid; 20:5n-3) and DHA (docosahexaenoic acid; 22:6n-3). Oils rich in n-3 LC-PUFA a...

Journal: :Bioresource technology 2014
Yao Wang Jin Liu Henri Gerken Chengwu Zhang Qiang Hu Yantao Li

Energy-intensive chemical conversion of crude algal oils into biodiesel is a major barrier for cost-effective algal biofuel production. To overcome this problem, we developed an enzyme-based platform for conversion of crude algal oils into fatty acid methyl esters. Crude algal oils were extracted from the oleaginous microalga Nannochloropsis oceanica IMET1 and converted by an immobilized lipase...

2012
VAHID HOSHYARGAR

Heavy and extra heavy crude oils are forming tremendous part of world crudes (about 40%). There are some problems limiting accessibility as a galore hydrocarbon source. One of limiting process is transportation which consumes very huge amount of energy due to their high viscosity. So, if there were a simple, stable, practicable in each situation and environmental friendly solution, these hydroc...

2011
Thomas J. Bruno Lisa Starkey Ott J Bruno

Problem statement: We have recently introduced several important improvements in the measurement of distillation curves for complex fluids. The modifications include a compositionexplicit data channel for each distillate fraction and temperature measurements that are true thermodynamic state points that can be modeled with an equation of state. The composition-explicit information is achieved w...

2015
JI-XIN LIU YAN-HONG SUN CHAO-PIN LI

Demodex is a type of permanent obligatory parasite, which can be found on the human body surface. Currently, drugs targeting Demodex usually result in adverse effects and have a poor therapeutic effect. Thus, the aim of the present study was to investigate the use of Chinese crude medicine volatile oils for targeting and inhibiting Demodex in vitro. The volatile oils of six Chinese crude medici...

Journal: :Journal of ethnopharmacology 2014
Bénédicta G H Kpadonou Kpoviessi Salomé D S Kpoviessi Eléonore Yayi Ladekan Fernand Gbaguidi Michel Frédérich Mansourou Moudachirou Joëlle Quetin-Leclercq Georges C Accrombessi Joanne Bero

ETHNOPHARMACOLOGICAL RELEVANCE Different parts of Ocimum gratissimum Linn are largely used in folk medicine for the treatment of many diseases, some of which related to parasitical infections as fevers and headaches. In order to validate their use and to clarify the plant part which possesses the best antiparasitic properties, we decided to evaluate the in vitro antiplasmodial and antitrypanoso...

Hama-Ba Fatouma, Savadogo Aly, Sawadogo Adama, Somda Roland Siourimè, Tapsoba François, Traoré Yves, Zio Souleymane,

Background: This study evaluated production technologies of the refined cottonseed oils and crude peanut oils and investigated the edible oils' sales condition in markets of Ouagadougou and Bobo Dioulasso, Africa. Methods: The study was carried out by administering a questionnaire to 316 edible oil sellers in markets, 25 cottonseed oil producers, and 18 crude peanut oil producers. The productio...

Journal: :Journal of the Franklin Institute 1922

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