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Xing A.,Chemical Beijing Institute | Lin Q.,Chemical Beijing Institute | Yue G.,Chemical Beijing Institute | Jiang L.,Chemical Beijing Institute
Petroleum Processing and Petrochemicals

Abstract SAPO-34 molecular sieve with moderate acidity and characteristic small pore structure exhibits super selectivity to C 2 - C 3 olefins during the conversion of methanol to light olefins (MTO). However, the catalytic performance of SAPO-34 molecular sieve catalyst mainly depends on its physicochemical characteristics, such as pore structure, surface acidity, crystal size and chemical compositions. Thus, a fully understanding of the relationship between physicochemical property and catalytic performance of the catalyst is helpful for an optimum catalyst design. In this paper the effects of physicochemical properties of SAPO-34 on the catalytic performance including activity, selectivity, thermal and hydrothermal stability of the catalyst in MTO process are analyzed, as well as various methods for adjusting the acidity, crystal size, pore structure and chemical compositions of SAPO-34 are summarized. Source

Shi Y.,Chemical Beijing Institute | Men Z.,Chemical Beijing Institute | Bu Y.,Chemical Beijing Institute | Wang H.,Chemical Beijing Institute
Petroleum Processing and Petrochemicals

SFT418 catalyst, a Fe-Co-Cu-K-SiO2 catalyst having dual active centers for low temperature Fischer-Tropsch (F-T) synthesis process, was developed by China Shenhua Coal to Liquid and Chemical Beijing Institute. An application performance test of SFT418 catalyst obtained from a commercial trial was carried out on a self-developed pilot plant of F-T synthesis process (CEU) under the commercial operation conditions of indirect coal liquefaction. The CEU evaluation results show that SFT418 catalyst exhibits excellent catalytic performance for F-T synthesis, under the optimized commercial conditions the CO conversion is more than 92% and the selectivity to C3 + hydrocarbons reaches more than 93%, indicating that the catalyst is ready to be used commercially. Source

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