煤制氢联产羰基合成气工艺流程与控制方案分析  

Analysis on the Process Flow and Control Scheme of Coproduced Carboxylic Syngas in Coal to Hydrogen

作　　者：吴德民 Wu De-min(Sinopec Ningbo Engineering Company,Ltd.,Ningbo Zhejiang 315103,China)

机构地区：[1]中石化宁波工程有限公司,浙江宁波315103

出　　处：《化肥设计》2018年第3期21-24,共4页Chemical Fertilizer Design

摘　　要：通过对某炼厂拟建长链醇类所需羰基合成气规格及总硫含量、杂质要求进行分析,在现有煤制氢装置的基础上新建一个净化系列用于生产羰基合成气。结合醇类合成装置对羰基合成气控制精度的要求,提出了预变换炉后预变换气作为主气源、预变换炉前粗合成气作为辅助气源补气的并行压力控制方案,并采用了粗配氢和细配氢两级配氢的控制方案,达到了氢碳比精确控制精度的要求。A new purification system is established for carboxylic syngas production based on the existing coal to hydrogen unit by analyzing specification,total sulphur content and impurity requirement of the carboxylic syngas needed by thelong-chain aliphatic alcoholin some refining plant.Considering the requirement of alcohols synthesis unit on the precision of carboxylic syngas control,this paper proposes the parallel pressure control scheme in which pre-shift gas serves as the major gas source after pre-shift converter and raw syngas servers as complimentary gas source before pre-shift converter,and control scheme of two-stage hydrogenmatching,rough hydrogen matching and fine hydrogen matching,which meets the requirements for the precision of carbon-hydrogen ratio control.

关 键 词：水煤浆气化 煤制氢 羰基合成气 工艺流程 控制方案 

分 类 号：TQ116.22[化学工程—无机化工]