高温煤焦油加氢联产针状焦工艺探讨  

Research on High Temperature Coal Tar Hydrogenation Combined with Needle Coke Production

作　　者：程志宇 沈和平 林永波 

机构地区：[1]成都淘鸿科技有限公司,四川成都610500

出　　处：《煤化工》2015年第4期3-7,11,共6页Coal Chemical Industry

摘　　要：对高温煤焦油加氢尾油的分析表明,其各项指标均能满足生产针状焦的预处理溶剂要求,可以作为工业上溶剂-沉降法生产煤系针状焦的优质溶剂;而高温煤焦油生产针状焦的精制沥青炭化馏出物为中性煤焦油,可回收作为煤焦油加氢原料。基于此,提出了高温煤焦油馏分油加氢与溶剂-沉降法生产针状焦的联合装置,以实现两种工艺方法的互补优化。通过初步技术论证和技术经济测算可知,两种工艺的合理组合,具有可行性和较好的经济效益。As the tail oil of high temperature coal tar distillate hydrocracking had the characteristics of low sulfur content, low nitrogen content, low asphahene content, low gel content, low carbon residue content, low metal content and high saturated hydrocarbon content, it could be used as a good solvent of solvent-settlement method for needle coke production in industrial scale. Preliminary technical demonstration and technical economic test showed the feasibility and good economic benefit of the reasonable combination of mature solvent-settlement method for needle coke production and mature high temperature coal tar distillate hydrogenation process.

关 键 词：高温煤焦油加氢 加氢尾油 煤沥青 溶剂-沉降法 针状焦 

分 类 号：TQ522.65[化学工程—煤化学工程]