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甲烷(分子式CH_4)无色、无味,比空气轻,它是常规天然气的主要组成成分。与煤炭相比,具有热值高,污染小的优点,其热值净值为34037.8～47541.96KJ/kg,燃烧时火焰呈天蓝色,燃烧后的产物为水(H_2O)和二氧化碳(CO_2)。 早在公元前一千五百年,古希腊历史学家格罗多特就指出,在小亚细亚南部沿岸地带有一种“长明火”。在伊朗、伊拉克、印度等地,正是由于这种“长明灯”才创造了拜火教和火神庙。现在看来,这种“长明
Methane (Molecular Formula CH_4) is colorless, odorless and lighter than air, and it is the main component of conventional natural gas. Compared with coal, it has the advantages of high calorific value and low pollution. Its net calorific value is 34037.8-47541.96KJ / kg. When burning, the flame is sky blue, and the products after combustion are water (H 2 O) and carbon dioxide (CO 2). As early as 1500 BC, the ancient Greek historian Grouoldt pointed out that there was a kind of “long fire” along the southern coast of Asia Minor. In Iran, Iraq, India and other places, it is precisely because of this “long light” to create a worship of fire and fire Temple. It now appears that this "long bright