各种燃料的热值.docx

各种燃料的热值世界各国都以标准煤的吨数或公斤数作为能源的统一计量单位标准煤是人们假设的一种标准燃料，1公斤重的标准煤的热值为29.308MJ在城市煤气规划设计时，常遇到新的气源种类供应例如：由人工煤气改换为天然气，或由瓶装液化石油气改换为人工煤气、天然气或矿井气,这就需要进行体积换算一般各种煤气的使用效率相近，故在工程设计计算中可简单地由热量变换为体积量，其换算系数为原有煤气的低热值与拟用煤气的低热值之比燃料名称热值MJ/kg折算率固焦炭25.12-29.3080.857-1.000无烟煤25.12-32.650.857-1.114体烟煤20.93-33.500.714-1.143燃褐煤8.38-16.760.286-0.572料泥煤10.87-12.570.371-0.429石煤4.19-8.380.143-0.286原油41.03-45.221.400-1.543液重油39.36-41.031.343-1.400体柴油46.041.571燃煤油43.111.471汽油43.111.471料沥青37.691.286焦油29.31-37.691.000-1.286气天然气36.221.236油田伴生气45.461.551体矿井气18.850.643燃焦炉煤气18.260.623料直立炉煤气16.150.551油煤气（热裂）42.171.439油煤气（催裂）18.85-27.230.643-0.929发生炉煤气5.01-6.070.171-0.207水煤气10.05-10.870.343-0.371两段炉水煤气11.72-12.570.400-0.429混合煤气13.39-15.060.457-0.514高炉煤气3.52-4.190.120-0.143转炉煤气8.38-8.790.286-0.300沼气18.850.643液化石油气（气态）87.92-100.503.000-3.429液化石油气（液态）45.22-50.23MJ/kg1.543-1.714电能3.6MJ/度0.1229常见可燃气体热值表名称高热值低热值（MJ/Nm3）（Kcal/Nm3）（MJ/Nm3）（Kcal/Nm3）氢12.74304418.792576一氧化碳12.64301812.643018甲烷39.82951035.888578乙烷70.31679264.3515371丙烷101.22417293.1822256正丁烷133.831957123.5629513异丁烷132.9631757122.7729324戊烷169.2640428156.6337418乙烯63.41514259.4414197丙烯93.612235887.6120925丁烯125.7630038117.6128092戊烯159.138002148.7335525苯162.1538729155.6637180乙炔58.481396856.4913493硫化氢25.35605423.375581石油液化气LPG92.1-121.422000-29000煤气16.723994天然气LNG38.59198。