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1. (WO2013153555) A DEVOLATALIZATION CATALYST FOR DEVOLATALIZATION OF COALS AND A PROCESS FOR THE MANUFACTURE OF COKE WITH IMPROVED CRI AND CSR VALUES USING SUCH CATALYST.

Pub. No.:    WO/2013/153555    International Application No.:    PCT/IN2012/000408
Publication Date: Fri Oct 18 01:59:59 CEST 2013 International Filing Date: Tue Jun 12 01:59:59 CEST 2012
IPC: B01J 23/34
B01J 23/72
Applicants: JSW STEEL LIMITED
SATHAYE, Jayant Moreshwar
PILLAI, Murugesa Sivasubramonia
NAGASHANMUGAM, Krishnachetty Bommannan
Inventors: SATHAYE, Jayant Moreshwar
PILLAI, Murugesa Sivasubramonia
NAGASHANMUGAM, Krishnachetty Bommannan
Title: A DEVOLATALIZATION CATALYST FOR DEVOLATALIZATION OF COALS AND A PROCESS FOR THE MANUFACTURE OF COKE WITH IMPROVED CRI AND CSR VALUES USING SUCH CATALYST.
Abstract:
A devolatalisation catalyst for devolatalisation of coals comprising at least one of copper oxide and manganese oxide and a process for producing coke with improved CRI and CSR is disclosed by faster carbonization of coal blend in presence of said catalyst. More particularly, a cost effective process is proposed enabling use of inferior quality coal(non-coking coal) and reduced quantity of costly and scarce hard coke, by stamping of coal blend in multiple layers to desired bulk density with a uniform layer of a combination of two different chemicals mixed in a preferred ratio as catalyst, on each layer of coal blend subjected to carbonization. The catalytic devolatalization of coal blend drives out the volatile components much early when the coal blend is highly fluid, thus producing hard and less porous coke with (lesser CRI & higher CSR) CRI improved by 1.0-3.0% and CSR improved by 1.5-4% and reduced the carbonization completion time improving productivity by about 3%.