天气预报 > 其他 > 煤是二次能源吗
煤是二次能源吗
更新时间: 2020-11-07 00:00:00  

煤不是二次能源,二次能源是转化过形式的能源,是由一次能源经过加工或转换得到的其他种类和形式的能源,也称“次级能源”或“人工能源”。包括煤气、焦炭、汽油、煤油、柴油、重油、液化石油气、酒精、沼气、电力、蒸汽、热水、氢能等。生产过程中的裕压、余热,如锅炉烟道排放的高温烟气,反应装置排放的可燃废气、废蒸汽、废热水,密闭反应器向外排放的有压流体等也属于二次能源。

关键词: 能源

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