摘要
使用流程模拟的方法计算了两种煤气化技术用于合成氨的能耗并分析了能耗产生差异的原因,提出比较和选择煤气化技术要基于具体的应用场合并确定合理的比较范围,从能耗角度为选择煤气化技术提供依据.计算结果表明,在水蒸气含量高的反应气氛下,氧煤比由灰熔点控制,反之,由碳转化率控制;GEGP气化技术单位H2煤耗和氧耗均较高,多消耗的煤和氧转化成了煤气中的水蒸气,GEGP气化炉内发生了部分变换反应,降低了变换装置的负荷;GEGP气化技术单位H2的能耗低于SCGP气化技术.
Based on process simulation, calculated and analyzed the energy consumption of two kinds of gasification technologies when they are used in synthetic ammonia industry, and indicated that choice and compare of gasification technologies should be in a specified application situation and proper compare scope. The calculated results show that when steam is excessive in reaction condition the oxygen-coal ratio is controlled by ash fusibility, or by carbon conversion ra- tio. GEGP technology consumes more coal and oxygen per unit hydrogen, and the more con- sumed coal and oxygen convert to steam in coal gas. More shift reaction occurs in GEGP gasifier and reduces the load of shift unit. GEGP technology consumes less energy per unit hydrogen relative to SCGP technology.
出处
《煤炭转化》
CAS
CSCD
北大核心
2009年第1期25-27,90,共4页
Coal Conversion
关键词
SCGP气化
GEGP气化
合成氨
能耗
流程模拟
SCGP gasification, GEGP gasification, synthetic ammonia, energy consumption, process simulation
