Oil depot high-solidification-point crude oil gas recovery system and method

The invention discloses an oil depot high-solidification-point crude oil gas recovery system and method, and relates to the technical field of oil gas recovery, the system comprises a coalescence cooling device, an adsorption and desorption device and a crude oil absorption device which are sequentially connected through a pipeline, the coalescence cooling device is composed of an oil gas feeding line, a coalescence filter, a frequency conversion fan, a cooler and a liquid separation tank, the adsorption device is an adsorption tank, and the crude oil absorption device is an absorption tower; according to the invention, heated crude oil is directly used as an absorbent, so that resource waste caused by introducing diesel oil and gasoline components as the absorbent is avoided, and the problem of difficult absorbent source is thoroughly solved; the coalescence filter is adopted, so that high-viscosity liquid is prevented from blocking subsequent pipelines and equipment; a cooling device is arranged at the outl