Is natural gas solid?If so, under what conditions will become solid?
Natural gas hydrate is a kind of white solid substance, which is like ice and has strong burning power. It is mainly composed of water molecules and hydrocarbon gases (mainly methane), so it is also called methane hydrate. Natural gas hydrate is in certain conditions (the appropriate temperature and pressure, gas saturation, water salinity, pH etc.), solid white crystalline substance formed by the interaction of gas or volatile liquid and water in the. Once the temperature rises or the pressure decreases, the methane gas escapes and the solid hydrates tend to disintegrate. (1 cubic meters of combustible ice under normal temperature and pressure can release 164 cubic meters of natural gas and 0.8 cubic meters of fresh water) so permafrost gas hydrate solid are distributed in the water depth of more than 300 meters above the seafloor sediments or in the cold. Natural gas hydrate on the thick layer of pressure to maintain its solid state, its distribution from the seabed to 1000 meters under the seabed within the range, deeper temperature due to its solid state is destroyed and difficult to exist.
Combustible ice combustion equationCH4 8H2O+2O2=CO2+10H2O(reaction conditions for "light") [edit this paragraph] combustible ice found as early as 1778, the British chemist Pudesiteli began to study the gas generated by gas hydrate temperature and pressure. In 1934, people found the ice like solid blockage in oil and gas pipelines and processing equipment, which is not ice, which is now known as combustible ice. In 1965, Soviet scientists predicted that the gas hydrate may exist in the surface layer of the bottom of the ocean, and then finally found a large number of combustible ice on the Arctic seabed. In 1970s, the United States Geological drilling workers in the ocean, found a look like ordinary ice things, when it was pulled from the sea, the "ice" soon became a sparkling water, and those bubbles but accidentally lit, the gas bubble is methane. According to the study, these white ash, like dry ice, is a solid mixture of natural gas and water under high pressure and low temperature. The results of the present study show that it exists only in the submarine or the frozen soil zone. The appearance of pure natural gas hydrate is white, like ice and snow, it can be ignited directly like solid alcohol. Therefore, it is popularly known as combustible ice". [edit this paragraph] combustible ice causes combustible ice is gas molecules (alkanes) were water molecules in the crystal formation at the bottom of the sea temperature and under pressure. There are three basic conditions for the formation of combustible ice: temperature, pressure and raw materials. First of all, combustible ice can be generated above 0 degrees Celsius, but more than 20 degrees will decompose
When it comes to energy, people think of coal, oil, or natural gas, and seldom think of the crystal clear ice". However, since 1960s, people have been in the tundra and the depths of the ocean to find a burning ice". This "combustible ice" in geology is called natural gas hydrate (Natural Gas Hydrate Gas, referred to as Hydrate), also known as the "clathrate" (Clathrate), molecular formula: CH4 - nH2O, it has been confirmed that the molecular structure of CH4 - 8H2O.
