Method for storing industrial gas in thermally insulated, pressure-tight storage tank of motor vehicle, involves using accumulator to store gas at temperature close to critical point and at pressure higher than given critical pressure

摘要

The method involves using an accumulator i.e. thermally insulated, pressure-tight storage tank (1), for storing industrial gas e.g. supercritical natural gas (6), at a temperature close to a critical point and at pressure higher than critical pressure up to a maximum of 1200 bar. The accumulator is provided with a closable opening (4) for withdrawal of the gas and for filling the gas. The gas is cooled by a refrigerating machine (2) and/or a relaxation device used for relaxing the gas in a throttled manner. A cooling device e.g. mixture Joule-Thomson cooler, is used as the machine. An independent claim is also included for an accumulator comprising tube bundles.