Co shift catalyst, co shift reaction apparatus, and method for purifying gasified gas

Patent metadata

Field	Value
Publication number	US-2017267939-A1
Application number	US-201715617193-A
Country	US
Kind code	A1
Filing date	Jun 8, 2017
Priority date	Feb 27, 2013
Publication date	Sep 21, 2017
Grant date	—

Abstract

A CO shift catalyst according to the present invention reforms carbon monoxide (CO) in gas. The CO shift catalyst has one of molybdenum (Mo) or iron (Fe) as a main component and has an active ingredient having one of nickel (Ni) or ruthenium (Ru) as an accessory component and one or two or more kinds of oxides from among titanium (Ti), zirconium (Zr), and cerium (Ce) for supporting the active ingredient as a support. The temperature at the time of manufacturing and firing the catalyst is equal to or higher than 550° C.

First claim

1 . A method of producing a CO shift catalyst which reforms carbon monoxide (CO) in gas comprising:
obtaining a complex oxide including titanium (Ti) and silicon (Si) as a support; and then supporting active ingredients including molybdenum (Mo) or iron (Fe) as a main component and nickel (Ni) or ruthenium (Ru) as an accessory component on the support of the complex oxide; and then firing them to obtain the CO shift catalyst at a high temperature from 550° C. to 800° C. to obtain a crystal structure of an anatase type.

2 . The method of producing a CO shift catalyst according to claim 1 ,
wherein a support amount of the main component of the active ingredient is 0.1 to 25 percent by weight, and a support amount of the accessory component is 0.01 to 10 percent by weight.

3 . A method for purifying gasified gas, comprising:
after smoke and dust in gasified gas obtained by a gasification furnace have been removed by a filter, further removing halogen in the gasified gas by a wet scrubber apparatus after removal of smoke and dust, subsequently removing carbon dioxide and hydrogen sulfide in the gasified gas after removal of halogen; and obtaining purified gas by performing the CO shift reaction for converting CO in the gasified gas after removal of carbon dioxide and hydrogen sulfide into CO 2 by using the CO shift catalyst obtained by the method according to claim 1 .

Assignees

• Mitsubishi Heavy Ind Ltd

Inventors

• Yonemura Masanao
• Yasutake Toshinobu
• Sawata Akihiro
• Seiki Yoshio
• Tanaka Yukio
• Higashino Koji
• Abe Hyota
• Yoshida Kaori

Classifications

• C10J2300/0959

  Oxygen · CPC title

• C10J3/00

  Production of combustible gases containing carbon monoxide from solid carbonaceous fuels (destructive distillation processes C10B) · CPC title

• B01J23/8906

  Iron and noble metals · CPC title

• C10J2300/1678

  with air separation · CPC title

• C10K1/003

  of acid contaminants, e.g. acid gas removal · CPC title