年产20万吨煤制乙二醇氢碳分离工段工艺设计.pdfVIP

The design of separation section about coal ethylene glycol hydrogen carbon 200，000 tons/a Abstract This topic is an annual output of 200,000 tons of coal ethylene glycol hydrogen carbon separation section process design. The purpose of this device is to meet the requirements of the system for the purity of the product gas, the principle of gas separation is to use different gas condensation temperature to achieve distillation separation, so that different gas purification, mainly refers to the purification of carbon monoxide (≥99%) to meet the requirements of the post-system, rich hydrogen sent to PSA (PSA ) The device is purified by hydrogen (≥99.9%). The separation of hydrogen carbon mainly includes the composition of front-end adsorption unit, cold box and low temperature discharge system. The equipment in the cold box mainly includes the main heat exchanger, gas-liquid separation tank, methane/coarse one. Carbon dioxide separation Tower, nitrogen/carbon monoxide separation tower; Low temperature discharge system consists of low temperature emission collection tank and steam heater. In the production process, mainly through the main control DCS screen control system working conditions are stable, mainly on the separation principle, process flow, process parameters design. Reasonable and feasible. Keywords: Distillation；Separation；Carbon monoxide ；Hydrogen II 目 录 1 总论 1 1.1 绪论1 1.1.1 乙二醇的现状1 1.1.2 氢碳分离中尾气的回收利用 1 1.1.3 吸附器工作原理1 2.氢碳分离方案的确定 2 2.1 氢碳分离方法的介绍2 2.2 氢碳分离的原理 2 2.3 氢碳分离方法的选择2 2.4 工艺流程 CAD 图2 3.简述工艺流程 3 3.1 物料工艺流程的简述3