نتایج جستجو برای: c5 selectivity
تعداد نتایج: 51487 فیلتر نتایج به سال:
Co–Fe–Al catalysts prepared using coprecipitation at laboratory scale were investigated and extended to pilot for high-calorific synthetic natural gas. The with different metal loadings analyzed BET, XRD, H2-TPR, FT-IR. An increase in the loading of showed low spinel phase ratio, leading an improvement reducibility. Among catalysts, 40CFAl catalyst afforded highest C2–C4 hydrocarbon time yield,...
In the present work, decomposition of benzene as a tar model compound was studied in gas mixture (CO2, H2, CO, and CH4) using dielectric barrier discharge (DBD) non-thermal plasma reactor. The combined effect temperature power to investigate performance DBD increased from 49.9 96% with increasing specific input energy (SIE) 2.05 16.4 kWh/m3. major products were lower hydrocarbons (C2–C5) solid ...
An extensive study of Fischer-Tropsch synthesis (FTS) on alumina-supported cobalt catalysts promoted with different amounts of ruthenium and rhenium is reported. Up to 2 wt% of promoters, are added to the catalyst by coimpregnation. The catalysts are characterized by different methods including: BET physisorption, X-ray diffraction, hydrogen chemisorption, and temperature-programmed reducti...
The particle sizes and metal support interactions play a pivotal role in Fischer Tropsch synthesis. Herein, promoter-embedded Co/TiO2 mesoporous nanocomposites with high surface area were synthesized through templated assisted solvothermal method comprising highly dispersed spherical shaped Co nanoparticles on titania of less than 10 nm. Moreover, synthesis aqueous media, rather wax-slurry, is ...
C5-deficient mice differed from C5-sufficient mice both quantitatively and qualitatively in C5 protein, C5 mRNA, and the C5 gene. C5-deficient protein was present as decreased amounts of an unprocessed, single-chain precursor. C5-deficient mRNA was decreased in amount and present in two forms, the smaller of which was the same as the single form in normal cells. Nuclei from both normal and defi...
The fifth component of complement, C5, can form fragments that cause neutrophil chemotaxis, oxygen radical production, and lysosomal enzyme release. The purpose of this study was to determine if C5 and these fragments contribute to the inflammation seen in pulmonary oxygen toxicity as defined by histology and analysis of bronchoalveolar lavage fluid (BALF). In addition, the role of C5 in produc...
Complement activation is involved in the initiation of Ab-mediated inflammatory demyelination in experimental autoimmune encephalomyelitis (EAE). At a sublytic dose, the C5b-9 membrane attack complex protects oligodendrocytes (OLG) from apoptosis. Using C5-deficient (C5-d) mice, we previously showed a dual role for C5: enhancement of inflammatory demyelination in acute EAE, and promotion of rem...
Butyric acid is a valuable building-block for the production of chemicals and materials and nowadays it is produced exclusively from petroleum. The aim of this study was to develop a suitable and robust strain of Clostridium tyrobutyricum that produces butyric acid at a high yield and selectivity from lignocellulosic biomasses. Pretreated (by wet explosion) and enzymatically hydrolysed wheat st...
C5-deficient mice grafted with thymus from C5-sufficient donors and immunized with C5 failed to make humoral antibody to C5, suggesting that the transfer of thymus had induced tolerance. Irradiated C5-deficient hosts repopulated with lymphoid cells from thymectomized C5-deficient mice grafted with C5-sufficient thymus also failed to respond to immunization with C5, thus showing that the state o...
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