Study On Industrialized Experiment Of Two-staged Riser Catalytic Cracking For Maximizing Propylene

Two-staged Riser Catalytic Cracking for Maximizing Propylene technology (TMP) is in Two Staged Riser Fluid Catalytic Cracking technology (TSRFCC) foundation up, develop of take fecundity Propylene as a purpose, give attention to both the new technique that low carbon alkene, high octane value gasoline and diesel produce, its technical characteristics mainly is that the catalyst relay, staged reaction,shorter reaction time and greater catalyst to oil ratio. This industrialization experiment is the 0.12Mt/a DCC devic of Daqing Refining & Petrochemical Company to reform of the TMP device up, with Daqing AR as feedstock, using the special catalyst,studies in the laboratory of foundation up, carry on dissimilarity production the industry of the project experiment.From the mark settle result show gasoline and slurry produced in the first riser were recycled to the second riser, yields of liquefied petroleum gas and propylene can reach 34.5% and 19.64% respectively, yields of gasoline and diesel oil can reach 33.72% and 13.37% respectively, yields of dry gas and coke is no bigger than 15%. Thus.the technology of TMP can maximize propylene yield without the cost of light oil quality.This thesis point is on the engineering to carry on a verification and study to the TMP technique and provide a craft for that technical industrialization basis, it main purpose's is to verify TMP craft and appropriation catalyst can be safe and steady in industrialize equip long period circulate, and attain to try the effect of fecundity propylene in the laboratory;Investigate the engineering material enlarge, reformation circumstance.For large turn the TMP industrial device to provide data and production of the design foundation to circulate experience;Combine according to industrialization experiment the data carry on a technique economy valuation.The development succeed the Petrochina have an independent intelligent property right of, top-grade oil refining chemical engineering integral whole in the world turn a new technique, Attain is give attention to both light oil quality of the premise descend fecundity propylene and promote the technique competition of CNPC ability.