图3。长通道、大断面、两阶段”气化工艺图
表2两阶段工艺煤气组分及热值(徐州新河矿工业性试验l
19914年煤气组分(%)煤气燕值流量
月日坞∞吼∞lMK曲l,l一蝇|材d,h
119.58.298.599.驾19.634.2l2919.3712.221920
lllo53.∞墙.∞15.∞13.16O.133611.1215.1219∞
姗.5314.45l枷
111153.38加.3514.3213.鲳3.趵
11也57.1011.稻“.的,13.8l2.∞35加.2414.701500
拨.1013.781650
11勰62.07“.43lO.1311.0r72.∞
ll∞54.251s.72加.酷15.264.233138.6013.1418lO
也367.9414.976.∞11.的O.∞30%.1012.%1450
也6鹤.5I14.425.23加.昭1.∞3优珥.∞12.661720
12764.0711.3l9.9411.133.56姗.6013.57l∞0
128∞.4216.579.5412.520.鲐3250.2013.611550
129的.9513.078.∞12.17O.5l3197.8013.391520
12m67.1612.329.加10.940.493286.2013.761750
12ll66.14lo.7511.粥11.10O.∞3侣1.3014.581580
121264.6312.479.贷n.70I.55艄.9013.的1850
1213∞.鲳“.1610.∞11.蛇O."32时.∞13.7716∞
121467.569.479.5012.920.573247.7813.601830上述试验数据表明。第二阶段煤气中的氢气含量均在50%以上.氢含量高的原因可概括如下:
1.气化荆为水蒸汽,消除了Nj对煤气组份与热值的影响o
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