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Bolian Xu Ruiqin Yang Fanzhi Meng Prasert Reubroycharoen Tharapong Vitidsant Yi Zhang Yoshiharu Yoneyama Noritatsu Tsubaki 《Catalysis Surveys from Asia》2009,13(3):147-163
Low temperature methanol synthesis is a promising technique for the practical methanol industry. New developments of a new
kind of low temperature methanol synthesis were reviewed, including the effects of feed gas, reaction solvent, supercritical
media and catalyst modification. The reaction mechanism and kinetics were also summarized primarily. Carbon dioxide played
an important role in this new kind of low temperature methanol synthesis. It reacted with hydrogen adsorbed on catalyst surface
to form HCOOM, an important reaction intermediate. Alcohol solvent in the low temperature methanol synthesis performed not
only a media, but also a homogeneous catalyst. The reaction of the adsorbed formate species with alcohol on Cu/ZnO catalyst
surface proceeded according to the Rideal mechanism rather than Langmuir–Hinshelwood mechanism to form alkyl formate. The
formation of alkyl formate from alcohol solvent and hydrogenation of such an alkyl formate were the key steps in low temperature
methanol synthesis reaction. These results provided new insights into low temperature methanol synthesis. 相似文献
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T. Naruephat D. Somsak V. Tharapong P. Amorn 《高分子科学》2006,(2):139-145
Depolymerization of poly(ethylene terephthalate) (PET) was performed in the tubular bomb microreactor which contained the solution of PET in methanol and dibutyltin oxide at the temperature ranging from 433 K to 473 K, the reaction time from 5 to 45 min and the catalyst-to-PET ratio of 0.3%-2% by weight. The optimal condition for PET depolymerization catalyzed by dibutyltin oxide is the temperature of 443-453 K, the reaction time of 20-25 min and 0.8% by weight of catalyst. By using differential methods, the activation energy for the depolymerization process was found to be 154.05 kJ/mol in the temperature range from 433-463 K. 相似文献
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