The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 22, 2016
Filed:
Sep. 18, 2014
Research Institute of Petroleum Industry (Ripi), Tehran, IR;
Tarbiat Modaress University, Tehran, IR;
Mahnaz Pourkhalil, Tehran, IR;
Alimorad Rashidi, Tehran, IR;
Abdolsammad Zarringhalam Moghaddam, Tehran, IR;
Mahdi Mohajeri, Tehran, IR;
Ali Mehri, Tehran, IR;
Research Institute of Petroleum Industry, Tehran, IR;
Tarbiat Modaress University, Tehran, IR;
Abstract
The present invention is related to the synthesis of a nano-hybrid catalyst made of carbon nanotubes and metal ferrite materials for the removal of NOcompounds, which are emitted from stationary sources, through an ammonia selective catalytic reduction process. Weight ratios of carbon nanotube (x) to metal ferrite (y) is preferably about (x/y) 0.1 to 10. The present invention is also directed to the synthesis of a nano-hybrid catalyst to improve the efficiency of the conventional NOreduction process at lower reaction temperatures. By use of the preferred nano-hybrid catalyst, it is possible to locate a selective catalytic reduction (SCR) unit capable of operating at lower temperatures, e.g., below 260° C., and from about 50° C. to about 250° C., after the desulfurizer and the particle removal equipment. With the exhaust gas cleaner, the lifetime of the catalyst can be increased. This nano-hybrid catalyst provides higher NOremoval efficiencies at low temperatures, typically from about 50° C. to about 250° C.