REACTIVATION METHOD OF CATALYST FOR IRON ACCUMULATION FLOW CONTACT DEGRADATION, REACTIVATION DEVICE AND FLOW CONTACT DEGRADATION METHOD

Title:

REACTIVATION METHOD OF CATALYST FOR IRON ACCUMULATION FLOW CONTACT DEGRADATION, REACTIVATION DEVICE AND FLOW CONTACT DEGRADATION METHOD

Document Type and Number:

Japanese Patent JP2017205744

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a reactivation method of a catalyst for iron accumulation flow contact degradation having iron or nickel accumulated on a surface.SOLUTION: There is provided a method for reactivating an inactivated catalyst by closing pores due to iron accumulated on a surface of a catalyst for iron accumulation flow contact degradation, an abrasion removal of iron accumulated on the surface is conducted by flowing the catalyst for iron accumulation flow contact degradation in a container with an ascending current at a temperature of 800°C or less for 0.5 to 30 hrs and contacting catalysts each other to obtain a reactivated catalyst. There is provided a method for reactivating a catalyst for flow contact degradation where a fresh catalyst and a catalyst for iron accumulation flow contact degradation has a pore diameter in maximum pore volume in a range of 50 to 500 nm satisfying a condition represented by the following formula 1. D/D+0.05≤D/D≤1.0 Formula 1. (a) D: pore diameter in maximum pore volume of the fresh catalyst (nm). (b) D: pore diameter in maximum pore volume of the catalyst for iron accumulation flow contact degradation (nm). (c) D: pore diameter in maximum pore volume of the reactivated catalyst (nm).SELECTED DRAWING: Figure 1

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Inventors:

SAKAI SHINGO
HAMADA REI
TEJIMA KATSUHIDE
SAKOTA HISAO

Application Number:

JP2016107239A

Publication Date:

November 24, 2017

Filing Date:

May 30, 2016

Export Citation:

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Assignee:

JGC CATALYSTS & CHEMICALS LTD

International Classes:

B01J38/00; B01J29/08; B01J29/90; B01J35/10; B01J38/02; C10G11/18

Domestic Patent References:

JP2000144151A	2000-05-26
JP2009526632A	2009-07-23
JPH04503373A	1992-06-18
JPS5910347A	1984-01-19

Foreign References:

US5393412A	1995-02-28
WO2011136217A1	2011-11-03
US20150224465A1	2015-08-13

Attorney, Agent or Firm:

Patent corporation ssinpat

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