天然气主要成分是什么？－王牌精英

天然气主要成分是什么？－王牌精英

天然气的成分本身就具有很高的使用价值，目前天然气的使用已经涉及到家庭生活的方方面面。天然气主要存在于油田和天然气田，也有少量出于煤层。

天然气主要成分是什么?天然气又叫油田气、石油气，是一种热值高、燃烧稳定的环保能源。天然气是一种混合气体，主要成分为烷烃，其中甲烷占绝大多数，另有少量的乙烷、丙烷和丁烷，此外还有硫化氢、二氧化碳、氮和水气及少量一氧化碳及微量的稀有气体(如氦和氩等)。通常将含甲烷高于90%的称为干气，含甲烷低于90%的称为湿气。

天然气的优点：

1、绿色环保：天然气是一种洁净的优质能源，无色无味无毒。相比于其他化石燃料，天然气燃烧时产生的二氧化碳比较少，能从根本上改善环境质量。

2、经济实惠：天然气与人工煤气相比，同比热值价格相当。天然气是洁净燃气，供应稳定，能够改善家居环境，提高生活质量。

3、热值高。天然气的热值大约是煤气的两倍，是液化石油气的1/3about.

天然气的分类：

1、纯天然气：从天然气井中开采出来的气田气。

2、油田伴生气：伴随石油一起开采出来的。

3、凝析气田气：从含石油轻质馏分的凝析油中分离出来的。

4、煤矿矿井气：从井下煤层抽出的。

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