燃料与化工
燃料與化工
연료여화공
FUEL & CHEMICAL PROCESSES
2014年
4期
4-7
,共4页
何选明%王春霞%陈诚%付鹏睿%王小娟
何選明%王春霞%陳誠%付鵬睿%王小娟
하선명%왕춘하%진성%부붕예%왕소연
低阶煤%预处理技术%热转换
低階煤%預處理技術%熱轉換
저계매%예처리기술%열전환
Low rank coal%Pretreatment%Thermal conversion
简述了低阶煤的利用现状及热转换过程中存在的问题，总结了水热预处理、酸预处理、溶剂溶胀、热预处理、氧烷基化及加氢预处理等预处理技术对低阶煤的结构、热解反应性和焦油品质及收率的影响。提出了合适的预处理技术可以降低煤的液化条件，提高煤的热转换效率，改善焦油品质，实现低阶煤的清洁高效利用。
簡述瞭低階煤的利用現狀及熱轉換過程中存在的問題，總結瞭水熱預處理、痠預處理、溶劑溶脹、熱預處理、氧烷基化及加氫預處理等預處理技術對低階煤的結構、熱解反應性和焦油品質及收率的影響。提齣瞭閤適的預處理技術可以降低煤的液化條件，提高煤的熱轉換效率，改善焦油品質，實現低階煤的清潔高效利用。
간술료저계매적이용현상급열전환과정중존재적문제，총결료수열예처리、산예처리、용제용창、열예처리、양완기화급가경예처리등예처리기술대저계매적결구、열해반응성화초유품질급수솔적영향。제출료합괄적예처리기술가이강저매적액화조건，제고매적열전환효솔，개선초유품질，실현저계매적청길고효이용。
This paper introduces the utilization status of low rank coal and the problems during ther -mal conversion ,summarizes the influence of pretreatment technologies such as hydrothermal pretreat -ment,acid pretreatment,thermal pretreatment,solvent swelling,oxyalkylation and hydrogenation pre-treatment to the structure,pyrolysis reactivity,tar quality and yield of low rank coal.It is proposed that with appropriate pretreatment technology , coal liquefaction conditions can be lowered , thermal conversion efficiency is increased ,and tar quality is improved.Therefore,the goal of using low rank coal in a clean and efficient way can be achieved .
