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Catalyst For Synthesizing Lower Olefin
Patent Number: JP61090739
Publication date: 1986-05-08
Inventor(s): Shin Shigemitsu, Suzuki Kunio, Kiyozumi Yoshimichi, Ogawa Kiyoshi, Yasumoto Yoshiro, Saito Kenji, Fujiki Yoshinori
Applicant(s): Agency Of Ind Science & Technol
Requested Patent: JP61090739
Application Number: JP19840213170 19841011
Priority Number(s):
IPC Classification: B01J23/78; C07C1/04; C07C11/02
EC Classification:
Equivalents: JP1609857C, JP2050773B

Abstract

PURPOSE: To obtain a catalyst capable of manufacturing selectively lower olefins from a synthesis gas by forming the catalyst consisting essentially of iron sodium metasilicate having a chemical composition of Na₅FeSi₄O₁₂.

CONSTITUTION: A catalyst precursor consisting essentially of iron sodium metasilicate having a chemical composition of Na₅FeSi₄O₁₂ is heat-treated at about 500^oC for about 15 hr in a gaseous hydrogen stream at the flow rate of 100 ml/min to manufacture an activated catalyst capable of converting a synthesis gas. The activated catalyst is brought into contact with the synthesis gas at about 10 kg/cm² total pressure, about 10,000 h^r-1 GHSV, and 351-375^oC, and the ratio of the lower olefin contained in 1-4 C lower hydrocarbons to the hydrocarbon reaches 80.6-91.7% with 1.5-7.8%, based on carbon, CO conversion efficiency and 1.2-4.8% effective conversion efficiency.