Submitted on: 04 May 1999.
Revised on: 05 July 1999.
Accepted on: 28 August 1999.
___________________CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS
Submitted on: 06 July 1999.
Revised on: 31 July 1999.
Accepted on: 01 September 1999.
___________________CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS
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http://reply.papertrans.cn/1/52/5136/5136-34.png
Submitted on: 02 August 1998.
Revised on: 28 November 1998.
Accepted on: 22 December 1998.
___________________CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS
Submitted on: 01 May 2007.
Revised on: 17 July 2007.
Accepted on: 03 September 2007.
___________________CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS