Laboratory evaluation methods for the catalytic pyrolysis of heavy oil

This paper introduces two laboratory evaluation methods for catalytic pyrolysis of heavy oil, using a fixed bed microreactor unit and a confined fluidized bed reactor unit as experimental equipment, respectively. Cracked gas was measured by HP6890 gas chromatograph, cracked liquid was analyzed by simulated distillation gas chromatograph and chromatograph-mass spectrograph, and coke on catalysts was determined by a coke analyzer. The results show that a fixed bed microreactor unit and a confined fluidized bed reactor unit have good repeatability and good relativity for catalytic pyrolysis of heavy oil. A fixed bed microreactor unit is relatively easy to operate and can be used to select catalysts and operation conditions primarily, while a confined fluidized bed reactor unit is in favor of the production of objective products and can be utilized to study operating conditions in detail.