Device for preparing or collecting adsorptive gaseous hydrocarbon in rock

A device used for preparing or collecting gas state hydrocarbon absorbed in rock consists of acidolysis and degassing integrated unit, gas collector, base liquid purification balance system, fluid transport air vent unit and vacuum-pumping unit. It is featured as using acid to decompose carbonate mineral in rock collecting and storing obtained gas state hydrocarbon for carrying out more accurate analysis on geologic sample.