摘要
以云南昭通褐煤为原料 ,在聚光太阳能气化炉内 ,分别对昭通褐煤热解、气化过程中热解温度、气化温度及蒸汽流量等工艺参数对产品煤气成分的影响规律进行了试验研究。结果表明 :随热解温度升高 ,煤气中CO2 含量逐渐减少 ,H2 含量增加 ;在 80 0℃以前CO和CH4 含量随着温度的升高而增加 ,当温度高于 80 0℃后其含量随温度的升高而降低。在蒸汽流量一定的条件下 ,随气化温度升高 ,煤气中CO2 、H2 的含量下降 ,CO含量上升 ;在一定的气化温度下 ,随蒸汽流量的增加 ,煤气中CO2 、H2 含量增加 ,CO含量下降。同时根据热解产物量 ,分别对热解煤气产率、热解效率、热解强度等进行了计算 ,并通过能量收支平衡计算 ,得出太阳能的转化效率为 3 8 2 4 %。
The effect of process parameters, such as the pyrolysis temperature, gasification temperature and steam flow on the composition of gas product was studied using Yunnan zhaotong lignite in a concentrated solar gasifier The results show that CO 2 content of gas reduces and H 2 increases with increasing temperature; CO and CH 4 content of gas increases below 800?℃, and then decrease over 800?℃ At the same steam flow, CO 2 and H 2 of gas reduce and CO increases when the gasification temperature increased At the same gasification temperature CO 2 and H 2 of gas increase and CO decreases with increasing steam flow The yield of pyrolysis gas, pyrolysis efficiency and pyrolysis strength are calculated by means of pyrolysis products And 38 24% transition efficiency of solar energy is obtained by energy balance
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
2001年第6期548-552,共5页
Journal of Fuel Chemistry and Technology
基金
云南省应用基础研究基金
云南省青年学术带头人科研基金 ( 970 0 48)~~
关键词
聚光太阳能
褐煤
气化
转化效率
热解
concentrated solar energy
zhaotong lignite
lignite gasification
transition efficiency of solar energy
