五万吨年甲醇制甲醛物料平衡及其单吨消耗.doc

1五万吨/年甲醇制甲醛物料平衡及其单吨消耗年产5万吨甲醛装置，年生产日按330天计。1-1 进料量序号甲醇量（0.9965）空气量（=0.8）配蒸汽量备注CH3OHH2O合计O2N2H2O合计Kg/hKg/hKg/hNm3/hNm3/hNm3/hNm3/hKg/h2807.20869.85972817.0683798.64912934.46569.97693803.0912253331511-2 产出量序号甲醛溶液（0.3743）尾气量(二吸塔出口)产蒸汽量（尾锅及汽包）备注Kg/hNm3/hKg/h(0.4MPaA蒸汽)6313.13133869.80472617.68001-3 单吨消耗及产汽量序号甲醇量（0.9965）空气（=0.8）耗蒸汽产蒸汽电耗生水量(含蒸汽)循环水(25)催化剂备注KgNm3KgKgkW*hKgKgg446.2236602.4096401.2771391.6127849.2389650009本物料平衡据国内某大型厂实际查定数据测算，其演算过程示意见附件1；附件1，5万吨甲醛物料与能量平衡演算过程示意：加甲醇量加空气量加蒸汽量CH3OHH2OO2N2H2OH2O2804.4379.8500062814.2875kg/h798.64912934.46569.976883803.0912Nm3/h2533.3151kg/h87.704910.54718988.2521kmol/h35.65398131.00293.123968169.7809kmol/h140.7397kmol/h以出口反算2807.2086 9.8597392817.0684kg/h87.72526930.54776388.273kmol/h物料表燃烧热00.8490421.130.0523441.7806200045.8120 燃烧热0283280565727890.31密度1.9641.251.4290.08910817900.7149901.251.23分子量4428322303216182846组份CO2COO2H2HCHOCH3OHCH4H2ON2HCOOH计算值/测定尾气(V/V)0.0310 0.0030 0.0040.150.0020.0000720.0020.049630.75829801.0000 N2守恒5.3555 0.5183 0.6910 25.9139 0.3455 0.0124 0.3455 8.5740 131.0029 0.0000 172.7591 3869.8047Nm3/h172.7591kmol/h产品(M/M)0.37430.0120.61360.00011.0000 2363.00575.7575803873.737370.63131316313.1313 6313.1313kg/h78.766842.3674240215.2076320.0137242296.3556kmol/h生成蒸汽绝对压力温度蒸汽比容蒸汽密度液体焓蒸汽焓汽化热反应生成蒸汽尾气锅炉生成蒸汽富余蒸汽量效率kg/hkPam3/kgkg/m3kJ/kgkJ/kgkJ/kgkg/hkg/hkg/h0.9350138.80.5241.9074583.762736.12152.3400143.40.4632.1618603.612742.12138.5-2555.5827-2886.2679-2908.5356-2617.68反应需甲醇尾气甲醇量产品甲醇量生甲醇量生甲醇单耗甲醇转化率甲醛选择性甲醛收率CH3OH+1/2O2 HCHO+H2OR1CH3OH（反）CH3OH（尾）CH3OH（产）kg/tCH3OHHCHO+H2R2kg/h2731.0530 0.39803775.75757582807.2086kg/h2817.0680.4462240.9728710.926967 0.901819CH3OH+3/2O2 CO2+2H2OR3反应选择性CH3OH+O2CO+2H2OR4R1R2R3R4R5R6CH3OH+H2CH4+H2OR50.619283 0.307684 0.062751 0.006073 0.004048 0.000161 1.00