文献类型：期刊文献

中文题名：滴管炉中煤焦和石油焦的水蒸气气化反应特性研究（英文）

英文题名：Comparison of steam-gasification characteristics of coal char and petroleum coke char in drop tube furnace

作者：丁路[1];周志杰[1];霍威[1];于广锁[1]

机构：[1]E China Univ Sci & Technol, Shanghai Engn Res Ctr Coal Gasificat, Minist Educ, Key Lab Coal Gasificat & Energy Chem Engn, Shanghai 200237, Peoples R China

年份：2015

卷号：23

期号：7

起止页码：1214

中文期刊名：Chinese Journal of Chemical Engineering

外文期刊名：中国化学工程学报（英文版）

收录：CSTPCD;;EI(收录号：20151900827546);Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000358948600021)】；CSCD:【CSCD2015_2016】；

基金：Supported by the National High Technology Research and Development of China (2012AA053101, 2011AA050106), the National Key State Basic Research Development Program of China (2010CB227004) and the National Natural Science Foundation of China (21376081).

语种：中文

中文关键词：煤焦气化;气化特性;石油焦;水蒸气;管式炉;水煤气变换反应;CO2含量;气化温度

外文关键词：Drop tube furnaceSteam/char ratioThermodynamic equilibriumReactivity

摘要：The steam-gasi fication reaction characteristics of coal and petroleum coke(PC) were studied in the drop tube furnace(DTF). The effects of various factors such as types of carbonaceous material, gasi fication temperature(1100–1400 °C) and mass ratio of steam to char(0.4:1, 0.6:1 and 1:1 separately) on gasi fication gas or solid products were investigated. The results showed that for all carbonaceous materials studied, H2 content exhibited the largest part of gasi fication gaseous products and CH4 had the smallest part. For the two petroleum cokes, CO2 content was higher than CO, which was similar to Zun-yi char. When the steam/char ratio was constant, the carbon conversion of both Shen-fu and PC chars increased with increasing temperature. When the gasi fication temperature was constant, the carbon conversions of all char samples increased with increasing steam/char ratio. For all the steam/char ratios, compared to water gas shift reaction, char-H2 O and char-CO2 reaction were further from the thermodynamic equilibrium due to a much lower char gasi fication rate than that of water gas shift reaction rate. Therefore, kinetic effects may play a more important role in a char gasi fication step than thermodynamic effects when the gasi fication reaction of char was held in DTF. The calculating method for the equilibrium shift in this study will be a worth reference for analysis of the gaseous components in industrial gasi fier. The reactivity of residual cokes decreased and the crystal layer(L002/d002) numbers of residual cokes increased with increasing gasi fication temperature. Therefore, L002/d002, the carbon crystallite structure parameter, can be used to evaluate the reactivity of residual cokes.
The steam-gasification reaction characteristics of coal and petroleum coke （PC） were studied in the drop tube furnace （DTF）. The effects of various factors such as types of carbonaceous material, gasification temperature （1100- 1400 ℃） and mass ratio of steam to char （0.4：1, 0.6：1 and 1：1 separately） on gasification gas or solid products were investigated. The results showed that for all carbonaceous materials studied, H2 content exhibited the largest part of gasification gaseous products and CH4 had the smallest part. For the two petroleum cokes, CO2 content was higher than CO, which was similar to Zun-yi char. When the steam/char ratio was constant, the carbon con- version of both Shen-fu and PC chars increased with increasing temperature. When the gasification temperature was constant, the carbon conversions of all char samples increased with increasing steam/char ratio. For all the steam/char ratios, compared to water gas shift reaction, char-H2O and char-CO2 reaction were further from the thermodynamic equilibrium due to a much lower char gasification rate than that of water gas shift reaction rate. Therefore, kinetic effects may play a more important role in a char gasification step than thermodynamic effects when the gasification reaction of char was held in DTF, The calculating method for the equilibrium shift in this study will be a worth reference for analysis of the gaseous components in industrial gasifier. The reactivity of residual cokes decreased and the crystal layer （L002/d002） numbers of residual cokes increased with increasing gasification temperature. Therefore, L002/d002, the carbon crystallite structure parameter, can be used to evaluate the reactivity of residual cokes.