Method of regenerating a denox catalyst
AssigneeShell Oil Company
InventorsWenzhong ZHANG, Geert Marten BAKKER, Steven Russell LEE
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Abstract
The invention provides a method for regenerating a deNOX catalyst comprising contacting the catalyst with steam at a temperature in the range of from 250 to 390° C. The invention further provides a method of reducing the amount of nitrogen oxide components in a process gas stream comprising: a) contacting the process gas with a deNOX catalyst which results in the conversion of nitrogen oxide components as well as a decline in the NOX conversion over the deNOX catalyst; and b) regenerating the deNOX catalyst to improve the NOX conversion by contacting the deNOX catalyst with steam at a temperature in the range of from 250 to 390° C.
Claims22
A method for regenerating a deNOX catalyst comprising contacting the catalyst with steam at a temperature in the range of from 250 to 390° C.
A method of reducing the amount of nitrogen oxide components in a process gas stream comprising:
- a. contacting the process gas with a deNOX catalyst which results in the conversion of nitrogen oxide components as well as a decline in the NOX conversion over the deNOX catalyst;
- and
- b. regenerating the deNOX catalyst to improve the NOX conversion by contacting the deNOX catalyst with steam at a temperature in the range of from 250 to 390° C.
Dependencies are inferred from the claim text.