GAS TREATMENT METHOD AND APPARATUS - SEKISUI CHEMICAL CO LTD

Title:

GAS TREATMENT METHOD AND APPARATUS

Document Type and Number:

WIPO Patent Application WO/2017/047731

Kind Code:

A1

Abstract:

Removal of hydrogen sulfide and oxygen in a gas enables downsizing of equipment and reduces equipment costs. In the present invention, the following modes are carried out alternately: a first mode in which a syngas g, which contains hydrogen sulfide and oxygen as components to be removed or reduced in concentration, is brought into contact with a first transition metal-containing substance 41 and then brought into contact with a second transition metal-containing substance 42; and a second mode in which the syngas g is brought into contact with the second transition metal-containing substance 42 and then brought into contact with the first transition metal-containing substance 41 In the first mode, iron oxide in the first transition metal-containing substance 41 reacts with hydrogen sulfide to form iron sulfide, which can react with oxygen. In addition, iron sulfide in the second transition metal-containing substance 42 reacts with oxygen to form iron oxide, which can react with hydrogen sulfide. In the second mode, iron oxide in the second transition metal-containing substance 42 reacts with hydrogen sulfide to form iron sulfide, and iron sulfide in the first transition metal-containing substance 41 reacts with oxygen to form iron oxide.

Inventors:

FUJIMORI YOJI (JP)
ISHII TETSUYA (JP)

Application Number:

PCT/JP2016/077375

Publication Date:

March 23, 2017

Filing Date:

September 16, 2016

Export Citation:

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Assignee:

SEKISUI CHEMICAL CO LTD (JP)

International Classes:

B01D53/52; B01D53/14; B01D53/72; C12P1/04

Foreign References:

JP2014050406A	2014-03-20
JP2012149138A	2012-08-09
JPH0781901A	1995-03-28
JP2011502040A	2011-01-20
JP2005154503A	2005-06-16
JP2007000830A	2007-01-11
JPH05117669A	1993-05-14

Other References: