广东化工
廣東化工
엄동화공
GUANGDONG CHEMICAL INDUSTRY
2011年
10期
77-77,73
,共2页
煤%化学族组成%热解%集总模型
煤%化學族組成%熱解%集總模型
매%화학족조성%열해%집총모형
coal%pyrolysis%chemical group composition%lumped method
煤的热解和煤的组成和结构关系密切,根据煤的化学族组成研究方法,将煤中有机物分为饱和分、芳香分,胶质、沥青质、碳青质和焦六组分,首先研究各单个组分的热解特性,找到其热解动力学模型,再在此基础上研究各族成分之间的影响规律,建立反应网络,求得反应速度参数,综合各步研究进行反应集总就可以得到整个煤的热解模型。由于此模型建立在化学族组成的基础上,化学族组成是在从分子水平对煤进行认识和研究,这样求得的煤热解模型机理清晰、预测准确性高、具有普适性,与以往的模型有较大的不同。在当前煤热解研究中,此种方法是一个较好的研究思路。
煤的熱解和煤的組成和結構關繫密切,根據煤的化學族組成研究方法,將煤中有機物分為飽和分、芳香分,膠質、瀝青質、碳青質和焦六組分,首先研究各單箇組分的熱解特性,找到其熱解動力學模型,再在此基礎上研究各族成分之間的影響規律,建立反應網絡,求得反應速度參數,綜閤各步研究進行反應集總就可以得到整箇煤的熱解模型。由于此模型建立在化學族組成的基礎上,化學族組成是在從分子水平對煤進行認識和研究,這樣求得的煤熱解模型機理清晰、預測準確性高、具有普適性,與以往的模型有較大的不同。在噹前煤熱解研究中,此種方法是一箇較好的研究思路。
매적열해화매적조성화결구관계밀절,근거매적화학족조성연구방법,장매중유궤물분위포화분、방향분,효질、력청질、탄청질화초륙조분,수선연구각단개조분적열해특성,조도기열해동역학모형,재재차기출상연구각족성분지간적영향규률,건립반응망락,구득반응속도삼수,종합각보연구진행반응집총취가이득도정개매적열해모형。유우차모형건립재화학족조성적기출상,화학족조성시재종분자수평대매진행인식화연구,저양구득적매열해모형궤리청석、예측준학성고、구유보괄성,여이왕적모형유교대적불동。재당전매열해연구중,차충방법시일개교호적연구사로。
The pyrolysis of coal is closely related to the composition and structure of coal.On the basis of the coal chemical group composition,the coal is divided into the following fractions: saturates,aromatics,colloid,asphaltene,carbines and carboids.Firstly by studying the pyrolysis characteristic of the single fraction,the reaction kinetics of coal pyrolysis is got.Secondly,on the basis,the interaction among each fraction is studied,thus the reaction net can be constructed,the reaction velocity is got.Finally,by using the lumped method,the model of coal pyrolysis is got.Because the model is based on the chemical group composition,which is a way studying coal from the molecule level,this model of coal pyrolysis can provide clear reaction mechanism,more accurate prediction and more general application.This model is different from the former model very much.In the research of the coal pyrolysis,the method is a better thinking way.