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Submitted on: 11 December 2009.
Revised on: 09 March 2010.
Accepted on: 05 April 2010.
___________________China Petroleum Processing & Petrochemical Technology
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Submitted on: 15 May 1998.
Revised on: 17 June 1998.
Accepted on: 13 July 1998.
___________________China Petroleum Processing & Petrochemical Technology
Submitted on: 17 December 2011.
Revised on: 08 April 2012.
Accepted on: 06 May 2012.
___________________China Petroleum Processing & Petrochemical Technology
Submitted on: 15 June 2005.
Revised on: 15 September 2005.
Accepted on: 07 October 2005.
___________________China Petroleum Processing & Petrochemical Technology
Submitted on: 04 January 2000.
Revised on: 07 March 2000.
Accepted on: 27 April 2000.
___________________China Petroleum Processing & Petrochemical Technology
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