Near-critical Fluid Storage Car With Natural Gas Technology Research

At present, because of shortage of effective recovery utilization means, a lot of oil field associated gas of our country is released and combusted. It causes the huge waste of resources. As the substitute fuel of vehicles, natural gas has many advantages, such as the abundant reserves, low prices, high octane number, great combustibility, low sulphur, low nitrogen, no ash and so on. It can also reduce the environmental pollution, which is caused by combustion of gasoline or other fuels. But, now, compressed natural gas storage technology has some shortcomings such as high gas storage pressure, low gas storage capacity and so on. The present compressed natural gas storage technology cannot be applied to recover the associated gas of oil field, nor store more gas for the natural gas vehicle. Therefore, it is very necessary to develop a kind of technology of storing more natural gas than compressed natural gas. This paper studies the solubility of natural gas, the dissolving mechanism of natural gas and the influencing factors of the solubility of natural gas under the near critical condition of fluid. It provides one kind of gas storage means of high efficiency for natural gas vehicle. At the same time, this paper analyses and improves the present compressed natural gas station to make it suit the technology. This paper's study will greatly promote and push forward the recovery and utilization of natural gas and the quick development of natural gas vehicle.