“煤拔头”工艺快速热解产物分布的实验研究  

Experimental Study of the Distribution of Products Quickly Pyrolyzed in the "Coal-topping" Process

作　　者：靳其龙[1] 王文宇[1] 栾积毅[2] 吴少华[1] 

机构地区：[1]哈尔滨工业大学燃烧工程研究所,黑龙江哈尔滨150001 [2]佳木斯大学机械工程学院,黑龙江佳木斯154007

出　　处：《热能动力工程》2013年第2期171-176,218-219,共6页Journal of Engineering for Thermal Energy and Power

基　　金：黑龙江省重大科技攻关项目(能源和化工原料融合的煤炭综合利用技术研究)(GA06A306)

摘　　要：在煤拔头小试实验台上模拟煤拔头工艺,分别对黑龙江省依兰县3种典型煤(六级煤、造气入炉煤、油页岩)快速热解产物分布进行实验研究,研究得到了热解温度对焦油产率、煤气组分、煤焦油组分的影响规律。六级煤、造气入炉煤、油页岩焦油收率最高点的温度分别为481、519、514℃,焦油收率分别为13.58%、12.54%、4.23%;3种煤的H2、CH4产率均随T升高而升高;造气入炉煤、六级煤的CO产率均随T升高而升高,而油页岩的CO产率在490℃时达到最大,之后随T升高而下降;3种煤的CO2产率受T影响均较小;六级煤在不同热解温度下,酚的衍生物和苯的衍生物产率较高;造气入炉煤在440℃时,长链烃约占焦油质量的50%。On a small coal topping test stand,simulated was the coal topping process and experimentally studied was the distribution of products quickly pyrolyzed from the following three types of typical coal,namely,Grade No.6 coal,coal fed into a furnace for coal gas production and oil shale rock originated from Yilan County of Heilongjiang Province.The law governing the influence of the pyrolytic temperature on the coal tar productivity,coal gas constituents,coal tar constituents was obtained respectively: the temperatures corresponding to the highest yields of coal tar from the above-mentioned three types of coal were 481 ℃,519 ℃ and 514 ℃ respectively and the coal tar yields were 13.58%,12.54% and 4.23% respectively.The H2 and CH4 productivities of the three types of coal increased with an increase of the temperature while the CO productivity of the oil shale rock attained its maximum at 490 ℃ and then decreased with an increase of the temperature.The carbon dioxide productivities of the three types of coal were all influenced little by the temperature.At various pyrolytic temperatures,Grade No.6 coal had relatively high productivities of hydroxybenzene and benzene derivatives.When the temperature was 440 ℃,the long chain hydrocarbons of the coal fed into the furnace for coal gas production approximately took up 50% of the coal tar in weight.

关 键 词：煤拔头 煤热解 快速热解温度 焦油 煤气 

分 类 号：TK16[动力工程及工程热物理—热能工程]