CAJ | 학술논문

氢转移对煤的加氢液化至关重要，理解氢转移机理对于改善煤液化过程具有重要意义。在微型反应釜中通过考察氢气的溶解、溶剂类型以及不同类型催化剂对煤高温快速液化的影响，揭示了煤高温快速液化过程中单原子氢和双原子氢的转移机理。结果表明，在以四氢萘、氢气为条件的高温快速液化过程中，主要的活性氢来源于溶剂所提供的单原子；在以四氢萘、氮气为条件的高温快速液化过程中，不同催化剂对溶剂提供单原子氢的影响不同。在以四氢萘和萘、氢气为条件的高温快速液化过程中，双原子氢基本未参与液化反应，溶解并不是其参与液化反应的主要影响因素。以萘为溶剂、氢气气氛下的高温快速液化过程中，双原子氢参与反应需要一定的时间。在以萘或四氢萘、氢气为条件的高温快速液化过程中通过加入一定量的催化剂，可以促使双原子氢快速参与反应。
경전이대매적가경액화지관중요，리해경전이궤리대우개선매액화과정구유중요의의。재미형반응부중통과고찰경기적용해、용제류형이급불동류형최화제대매고온쾌속액화적영향，게시료매고온쾌속액화과정중단원자경화쌍원자경적전이궤리。결과표명，재이사경내、경기위조건적고온쾌속액화과정중，주요적활성경래원우용제소제공적단원자；재이사경내、담기위조건적고온쾌속액화과정중，불동최화제대용제제공단원자경적영향불동。재이사경내화내、경기위조건적고온쾌속액화과정중，쌍원자경기본미삼여액화반응，용해병불시기삼여액화반응적주요영향인소。이내위용제、경기기분하적고온쾌속액화과정중，쌍원자경삼여반응수요일정적시간。재이내혹사경내、경기위조건적고온쾌속액화과정중통과가입일정량적최화제，가이촉사쌍원자경쾌속삼여반응。
Hydrogen transfer is crucially important for coal hydroliquefaction, so the understanding of the hydrogen transfer mechanism is of great significance to improve the coal liquefaction process. By examining the effect of pre-dissolved hydrogen, solvent types and different types of catalysts on the quick coal liquefaction at high temperature in a micro stirred reactor, this paper reveals the monatomic and biatomic hydrogen transfer mechanism during quick coal liquefaction at high temperature in a micro autoclave. The results show that the active hydrogen is mainly provided by monatomic hydrogen generated from solvent with tetralin and hydrogen as hydrogen resource. The effects of different catalysts on monatomic hydrogen donation of solvent are different under the condition of tetralin and nitrogen. In naphthalene and hydrogen, biatomic hydrogen needs a certain time to take part in coal direct liquefaction reaction. In tetralin, naphthalene and hydrogen, a certain amount of catalysts can quickly promote biatomic hydrogen to take part in the coal direct liquefaction reaction.