The invention relates to a portable adsorption type
natural gas recovery device and method. The device consists of a gas collecting module, a
machine pump module, an adsorption module and a control module, wherein each of the modules comprises a
natural gas bottle or an LNG
bottle, a gasifier, a
buffer tank, a
vacuum pump, a
natural gas compressor, an ANG
bottle, a control cabinet, a pressure, temperature and
oxygen detecting probe and various valves; main body equipment of the device is mounted on a gasifier prying block, a
buffer tank prying block, a
vacuum pump prying block and a compressor prying block; the prying blocks are in
bolt connection, so that in-site assembled prying can be convenient to perform, and a vehicle-mounted natural gas
recovery device can be made, so that the movement and the operation are convenient. The ANG bottles can be demounted, and replaced, and
system operation is not influenced. The device is provided with a vacuum
system for vacuumizing the
system. According to the portable adsorption type natural gas
recovery device and the method disclosed by the invention, natural gas exhausted from the natural gas bottles or the LNG bottles is collected to the gasifier and the
buffer tank; a compressor is used for compressing the natural gas through
medium pressure into the ANG bottles to be stored, so that recovery is realized. When being required by outside, gas in the bottles can realize
desorption for use of
energy resources.