The Kinetics Model Of Crude Oil Pyrolysis Under High Pressure And Temperature

Kinetic model which includes pressure factors was established, and analysis of itsreliability was carried out in closed system under high pressure by thermal simulationexperimental data of crude oil, then kinetic parameters and pressure factors were calculatedby the model, and the influence of Tarim Basin pyrolysis of crude oil were studied underdifferent pressures.1#,2#and3#oil samples were calculated simulation of gas yield by the model with theexperimental fitting degree of the gas yield,they were followed along with the increasing ofthe number of parallel reactions, the fitting degree was gradually improved, when the numberof reactions were reached a certain number, fitting degree was gradually reduced; Theactivation energy of1#,2#and3#oil samples to gas were （45-58）×4.187kJ·mol-1,and thesimulations of oil to gas process by model were good.Study results showed that as the pressure was increased, the kp was increased, the role ofpressure on pyrolysis of oil sample was promoting; when the pressure was increased, the kpwas redused, the role of pressure on pyrolysis of oil sample was restrained.The role of pressure on pyrolysis of different oil samples were different, because thecomposition and nature of different oil samples were not same; The role of pressure onpyrolysis of the same oil sample under different temperatures were different, It was showedthat the influence of crude oil pyrolysis under different pressures and temperatures weremutual.