当代化工
噹代化工
당대화공
CONTEMPORARY CHEMICAL INDUSTRY
2014年
8期
1527-1529
,共3页
煤层气%脱水%TEG%模拟分析
煤層氣%脫水%TEG%模擬分析
매층기%탈수%TEG%모의분석
CBM%dehydration%TEG%Simulation
对国内AW煤层气进行三甘醇法(TEG)脱水工艺模拟分析,可以得出:随着原料煤层气压力增大,脱水率增大,水露点降低,但变化的幅度均逐渐减小;原料气温度则相反,温度升高时,水露点升高和脱水率降低,变化幅度逐渐增大;进料量增大时出现“吹液”而使得脱水效果降低;随贫液温度升高,水露点和脱水率分别呈线性增大和减小,但总体上影响不大;综合考虑制造成本和脱水效果,存在一个最优塔板数,若在此基础上继续提高塔板数意义不大。
對國內AW煤層氣進行三甘醇法(TEG)脫水工藝模擬分析,可以得齣:隨著原料煤層氣壓力增大,脫水率增大,水露點降低,但變化的幅度均逐漸減小;原料氣溫度則相反,溫度升高時,水露點升高和脫水率降低,變化幅度逐漸增大;進料量增大時齣現“吹液”而使得脫水效果降低;隨貧液溫度升高,水露點和脫水率分彆呈線性增大和減小,但總體上影響不大;綜閤攷慮製造成本和脫水效果,存在一箇最優塔闆數,若在此基礎上繼續提高塔闆數意義不大。
대국내AW매층기진행삼감순법(TEG)탈수공예모의분석,가이득출:수착원료매층기압력증대,탈수솔증대,수로점강저,단변화적폭도균축점감소;원료기온도칙상반,온도승고시,수로점승고화탈수솔강저,변화폭도축점증대;진료량증대시출현“취액”이사득탈수효과강저;수빈액온도승고,수로점화탈수솔분별정선성증대화감소,단총체상영향불대;종합고필제조성본화탈수효과,존재일개최우탑판수,약재차기출상계속제고탑판수의의불대。
A TEG dehydration process of domestic AW CBM was simulated and analyzed. The results show that, the dehydration rate increases and the water dew point decreases with the increasing of raw CBM pressure, but the extent of change is diminishing;Effect of temperature on the dehydration is opposite, the dehydration rate reduces and the water dew point increases with the increasing of raw CBM temperature, and the extent of change is increasing;When inlet amount increases, blowing tower tray phenomenon may happen, which will cause the dehydration rate decrease;With barren solution temperature elevating, water dew point and the dehydration rate linearly increase and decrease respectively, but the overall impact is small;Considering costs and dehydration effect, there is a optimal absorber plate number.