EFFECT OF SLURRY HEATING RATE ON SHORT-CONTACT-TIME COAL-LIQUEFACTION

被引：11

作者：

WHAM, RM

机构：

[1] Oak Ridge Natl Lab, Oak Ridge, TN,, USA, Oak Ridge Natl Lab, Oak Ridge, TN, USA

来源：

FUEL | 1987年 / 66卷 / 02期

关键词：

COAL SLURRIES - Heating;

D O I：

10.1016/0016-2361(87)90257-2

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The effects of changes in heating rate of a coal/solvent slurry on conversions to pyridine-soluble material have been examined. Dramatic increases in conversions were observed when the coal/ solvent mixture was maintained at a temperature of 589 K for 10 min before heating to reaction conditions of 700 K for 5 min. In particular, conversion increased from 32. 0 to 76. 7wt% and the ratio of oils to preasphaltenes increased by a factor of four. The temperature range for the greatest effect is observed to be 550-595 K while 450 K shows no change in conversion. The mechanism is thought to be chemisorption of the solvent or solvent occlusion which would increase the concentration of hydrogen donor in the coal matrix thus affecting the reaction environment.

引用

页码：283 / 284

页数：2

共 12 条

[1]

DERBYSHIRE FJ, 1981, AP2117 EL POW RES I

[2]

JOHANSON ES, 1982, MAY EPRI LIQ CONTR M

[3]

JOLLEY RL, 1983, ORNLTM8662 REP

[4]

MCARTHUR JB, 1985, AP3825SR EL POW RES

[5] LIQUEFACTION OF COAL IN HYDROGEN-DONOR AND NON-DONOR VEHICLES [J].

NEAVEL, RC .

FUEL, 1976, 55 (03) :237-242

[6]

ROSENTHAL JR, 1982, CHEVRON COAL LIQUEFA

[7]

SCHINDLER HD, 1982, NATIONAL AICHE M ORL

[8]

WHAM RM, 1983, NATIONAL AICHE M ANA

[9]

WHAM RM, 1983, THESIS U TENNESSEE

[10]

WHITEHURST DD, 1976, AF252 EL POW RES I R

← 1 2 →