نتایج جستجو برای: heavy liquid hydrocarbon
تعداد نتایج: 359486 فیلتر نتایج به سال:
Kaolinite is non-sensitive, low swelling clay with high chemical resistance and high workability. It is commonly found as a major fraction of clay liner in waste disposal sites. These clay liners are usually exposed to different concentrations of heavy metals. Even though there are several researches focusing on the interaction process of kaolinite and heavy metal contaminations, there are only...
To understand the effect of thermochemical sulphate reduction (TSR) on stable carbon isotopes light hydrocarbons (LHs) associated with natural gas, 15 gases varying H 2 S content from Ordovician reservoir Tazhong gas field (TZ-I) in Tarim Basin and Triassic Leikoupo Zhongba (ZB) Sichuan were collected. Based data molecular components isotope ratios C 1 -C 4 alongside individual LHs (C 6 7 ) the...
The reconstituted high density lipoproteins (rHDL) that were described in the preceding paper (Hefele Wald, J., Krul, E. S., and Jonas, A. (1990) J. Biol. Chem. 265, 20037-20043) are used in this study to analyze the organization, conformation, and dynamics of the lipid phase, as well as the relative orientation of the apolipoprotein alpha-helices and the lipid hydrocarbon chains. Two fluoresce...
Botryococcus braunii is a colonial green alga whose cells associate via a complex extracellular matrix (ECM) and produce prodigious amounts of liquid hydrocarbons that can be readily converted into conventional combustion engine fuels. We used quick-freeze deep-etch electron microscopy and biochemical/histochemical analysis to elucidate many new features of B. braunii cell/colony organization a...
The technological and technical possibility of deep processing coal by its liquefaction using the methods extreme mechanochemical physical effects has been determined; recommendations have developed for applied use obtained materials in heat power engineering. organic part solid mass prepared coal-oil suspension, which turned into a relatively heavy liquid, can be used as boiler or motor fuel, ...
Simple mono- and bilayers, built of amphiphilic molecules and prepared at air-liquid or solid-liquid interfaces, can be used as models to study such effects as water penetration, hydrocarbon chain packing, and structural changes due to head group modification. In the paper, we will discuss neutron and X-ray reflectometry and grazing incidence X-ray diffraction techniques used to explore structu...
The extraction efficiency of heavy metals from soils using three forms of gamma poly-glutamic acid (γ-PGA) as the washing agents was investigated. Controlling factors including agent concentrations, extraction time, pH, and liquid to soil ratio were evaluated to determine the optimum operational conditions. The distribution of heavy metal species in soils before and after extraction processes w...
liquid membrane processes have attracted many interests in recent years for removal of heavy metals such as cadmium from industrial wastewaters. in this study, a modified hybrid liquid membrane system is introduced. the setup is worked by applying the water-insoluble dioctyl phthalate as the organic solvent. n-octanol and tetra butyl ammonium bromide are added to the organic phase to increase t...
Converting styrofoam plastic waste (SPW) into liquid pyrolysis oil (PLO) using a sequential reactor and natural zeolite catalytic vessel was conducted at relatively low temperatures from 160oC to 260oC complete time, tp of 60-120 minutes. The presence zeolites on reformer intended undergo the second stage degradation gas produced without further heating. This work aims find yield quality PLO th...
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