液化气、瓦斯和煤气有没有区别？
液化气和瓦斯有没有区别，假如没区别，为什么有三个名字？
推荐回答（3个）
液化气，是指经过高压把气体压缩成液态，便于存储和运输，并不特指那种气体。
瓦斯，就是甲烷，既可以天然开采也可以人工制成（天然沼气）。
煤气，主要成分是一氧化碳，既可以天然开采可以人工制成。
液化气，又叫液化石油气！一般到家庭、餐馆、用户都是瓶装！是石油加工出来的可燃气体（主要成分好像是丙烷和丁烷），再添加臭气等防止意外！
瓦斯，是地层中的可燃气体的通称，一般在煤矿经常用到这个词（瓦斯爆炸、瓦斯监测等），主要成分为甲烷；第二，它也是管道煤气的别称。
煤气通常为家庭用石油液化气的俗称，它是多种有机物质的混合物组成的，如甲烷，乙烷，丙烷等等烷烃，以及乙烯，丙烯等烯烃，是石油炼制后的废气，因此作为家庭用燃料。
从气体性质上来说没什么区别的，都属于易燃易爆气体，从场合使用来说，液化气一般是家庭用的，这个大家都知道吧，液化气的主要成分是丙烷和丁烷吧，瓦斯一般是煤矿上的称呼，主要成分是甲烷，煤气分为焦炉煤气和高炉煤气，焦炉煤气的主要成分是氢气，高炉煤气主要是一氧化碳。一般我们说的煤气中毒，是说一氧化碳气体中毒，
液化气，又叫液化石油气！一般到家庭、餐馆、用户都是瓶装！是石油加工出来的可燃气体（主要成分好像是丙烷和丁烷），再添加臭气等防止意外！
瓦斯，是地层中的可燃气体的通称，一般在煤矿经常用到这个词（瓦斯爆炸、瓦斯监测等），主要成分为甲烷；第二，它也是管道煤气的别称！
管道煤气，主要是天然气，是从地下的气井、油气井中直接抽取出来的可燃气体；如我国现在的西气东输；
煤气，是管道煤气、液化气的总称。在特定语境中可以分别指液化石油气、管道煤气等！
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