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Zhenjiang, China

Chen W.,CAS Dalian Institute of Chemical Physics | Ling C.,Jiangsu SOPO Group Co. | Ding Y.,CAS Dalian Institute of Chemical Physics | Wang T.,CAS Dalian Institute of Chemical Physics | And 2 more authors.
Shiyou Huagong/Petrochemical Technology | Year: 2013

A series of Cu-ZnO/SiO2 catalysts were prepared by sol-gel method and characterized by means of N2 adsorption-desorption, XRD and XRF. The effects of pretreatment with NH3·H2O and the addition of polyethylene glycoll (PEG) on the structural properties of the prepared samples and their catalytic performances in the hydrogenolysis of methyl acetate were investigated. The results show that the pretreatment increases the specific surface areas of the samples and the addition of PEG increases their pore volume and pore size with the narrow distribution, which improves the dispersion of CuO. All the Cu-ZnO/SiO2catalysts prepared by sol-gel method displayed high activity and selectivity to ethanol in the hydrogenolysis. The conversion of methyl acetate and selectivity to ethanol reached 98.5% and 96.2%, respectively under the conditions of 250°C, 7.0 MPa, n(H2):n(methyl acetate) 10 and LHSV 0.50 h-1. And their catalytic performances remained unchanged after running 430 h. The catalysts can be used under low pressure. Source


Shao S.,East China University of Science and Technology | Shao S.,Jiangsu SOPO Group Co. | Chen X.,East China University of Science and Technology | Liu H.,East China University of Science and Technology | Wang F.,East China University of Science and Technology
Energy Sources, Part A: Recovery, Utilization and Environmental Effects | Year: 2012

The feasibility of substituting alcohol fermentation wastewater of maize and cassava for water to prepare coal slurries was explored. The rheological and stability properties of coal alcohol fermentation wastewater slurries were studied and compared with that of coal water slurry. The results showed that both coal maize and cassava alcohol fermentation wastewater slurries exhibited shear-thinning behavior. Because of the oxygen-containing functional groups (carboxylic) with exchangeable cations in alcohol fermentation wastewater and its low pH value, coal maize and cassava alcohol fermentation wastewater slurries exhibited the higher apparent viscosities, the stronger shear-thinning behavior, and worse stabilities compared with the coal water slurry. In addition, alcohol fermentation wastewater should be diluted for preparing coal slurries to meet industrial need in apparent viscosity and solid concentration at the same time. © 2012 Copyright Taylor and Francis Group, LLC. Source


Xu B.,Jiangsu SOPO Group Co. | Chen B.,CAS Institute of Chemistry | Huang Z.,CAS Institute of Chemistry | Lu T.,CAS Institute of Chemistry
Chemistry Bulletin / Huaxue Tongbao | Year: 2013

TiO2-ZrO2 composite oxide support was prepared by Sol-gel method. Pt/TiO2-ZrO2 and Pt-M/TiO2-ZrO2 (M=Re, Sn or In) catalysts were prepared by the impregnation method and characterized by X-ray powder diffraction and X-ray photoelectron spectroscopy. Their catalytic performance in the liquid phase hydrogenation of furfural was investigated. The results showed that the electronic structure of the catalysts have been changed after introducing electropositive metal compared with single metal catalyst. These effects enhanced the catalytic performance of bimetal catalysts in this reaction. The order of increase in catalytic activity is consistent with the order of electonegativity of electropositive metal, which both are Re ≤ Sn ≤ In. Among them, the best catalyst was obtained by additing Re, the conversion of furfural is 100% and the selectivity of furfuryl alcohol is 95.7%. Source


Ling C.,Jiangsu SOPO Group Co. | Huang Z.,CAS Institute of Chemistry
Chemistry Bulletin / Huaxue Tongbao | Year: 2013

Rhodium was used to catalyze the carbonylation of ethyl acetate with carbon monoxide to propionic acid. The effect of iodide additives and reaction conditions on yield of propionic acid was studied. Because of avoiding the esterification and intermolecular dehydration of ethanol the yield of propionic acid was improved significantly. The kinetic behavior of ethyl acetate carbonylation was similar with methanol carbonylation. The reaction rate and propionic acid selectivity were increased obviously with the introduction of iodide additives. The propionic acid yield is greater than 95% under the optimum conditions. Source


Trademark
Jiangsu Sopo Group Co. | Date: 2006-11-14

Argon; nitrogen; carbon monoxide; chlorine; dry ice; hydrogen; oxygen; acetic acids; sulfuric acid; alkalies; caustic alkali; hydrochloric acid; glacial acetic acid; propionic acid; ethanol; methanol; ethyl acetate; butyl acetate; azodicarbonide; calcium hypochlorite [; catalysts for use in manufacture of rubber, namely, rubber accelerator ].

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