摘要
对焦炉煤气CO2吸收增强法制氢工艺,根据对合成气氢气摩尔分数、CO2摩尔分数、氢气产率及反应器热平衡的要求,确定了制氢反应器制氢温度、制氢压力、水碳比、钙碳比等参数取值范围。在制氢反应器性能模拟基础上,分析了合成气制备、吸收剂再生、合成气分离、热功转化单元的物质能量关联,得到制氢操作条件对焦炉煤气能量转化效率的影响。当制氢压力取2.5MPa、制氢温度取985K、钙碳比≥0.8、水碳比≥4.1时,焦炉煤气能量转化效率可达78%。
For hydrogen production from coke oven gas with CO2 adsorption enhanced process, the parameter range of hydrogen production reactor, such as temperature, pressure, water-to-carbon ratio, calcium-to-carbon ratio and so on are determined according to the requirements for hydrogen molar frac- tion in syngas, CO2 molar fraction, hydrogen yield and reactor heat balance. Based on the performance simulation of the hydrogen production reactor, the energy correlation among syngas production unit, ab- sorbent regeneration unit, syngas separation unit and heat power conversion unit is analyzed, and the in- fluence of operation conditions for hydrogen production on coke oven gas energy conversion efficiency is investigated. The coke oven gas energy conversion efficiency can reach 78% under pressure of 2.5 MPa, temperature of 985 K, calcium-to-carbon ratio of equal to or greater than O. 8 and water-to-carbon ratio of equal to or greater than 4.1.
出处
《煤气与热力》
2012年第9期25-29,共5页
Gas & Heat
基金
国家自然科学基金项目(50876012)
关键词
CO2吸收增强制氢
合成气
焦炉煤气能量转化效率
制氢操作参数
hydrogen production with C02 adsorption enhanced process
gas energy conversion efficiency
operation parameter for hydrogen production syngas
coke oven
