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天然气水合物(Gas Hydrates)被科学家喻为“易燃冰”或“可燃冰”。研究表明天然气水合物是一种由天然气和水形成的冰状白色固态晶体,水分子一般通过氢键合成为多面体笼,笼中包含有客体的天然气分子。这种笼形构造的天然气水合物常在一种特定的高压低温条件下形成并可稳定存在,广泛发育在浅海底层沉积物和深海大陆边坡沉积层中,以及极地地区的永冻层中。科学家预测,世界各地普遍存在着几乎是纯甲烷的天然气水合物资源,且蕴藏量十分巨大,是极具发展前景的新型洁净能源。这无疑是一个激动人心的惊人发现。人们从开始认识它到确认它是天赐人类的巨大资源,经历了漫长的艰辛历程。1810年,英国皇家学会学者 Humphry Davy 在实验室首次人工合成了氯气水合物。随后其它天然气水合物相继合成,并引起了各国化学家对其化学组分及物质结构的激烈争论。虽历经百余年,但人们对天然气水合物在自然界的存在仍知之甚少。只是到了19世纪初,人们发现输气管道、
Gas Hydrates are termed “flammable ice” or “flammable ice” by scientists. Studies have shown that natural gas hydrate is an ice-like, white, solid crystal formed from natural gas and water. Water molecules are typically hydrogenated into polyhedral cages containing guest natural gas molecules. The clathrate gas hydrate is often formed under a specific high-pressure and low-temperature condition and can be stably present. It is widely found in shallow marine sediments and deep continental slope sediments, and in polar frozen zones. Scientists predict that there are ubiquitous natural gas hydrate resources of pure methane all over the world, and the reserves are huge. It is a promising new clean energy source. This is undoubtedly an exciting and amazing discovery. It has come a long and arduous journey from the time people begin to recognize it to confirm that it is a great resource for God. In 1810, Humphry Davy, a scholar at the Royal Society, made the first artificial synthesis of chlorine hydrate in the laboratory. Subsequently, other natural gas hydrates were synthesized one after another and caused heated debates among chemists in their chemical composition and material structure. Although over a hundred years, there is still little understanding of the existence of natural gas hydrate in nature. Only to the early 19th century, people found that gas pipelines,