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《Chemical Industry and Engineering Progress》 2016-12
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Purification of Indonesian oil sands bitumen

LUO Kuanyong;HAN Dongyun;LI Fuqi;SHI Weiwei;PANG Haiquan;CAO Zubin;College of Petrochemical Technology,Liaoning Shihua University;Engineering Research Center of Heavy Oil Process Ltd.,Corp.,CNOOC;  
Oil sands bitumen obtained from solvent extraction contained a great amount of mechanical impurities(MI),which was harmful to the post processing of bitumen.The characterization of mineral components of MI by XRD and particle size distribution of MI by laser particle analyzer were presented.Compound reagent was developed for the removal of MI and the reaction mechanism was presented.The technology consisted of three steps,namely,dilution of bitumen by diluent(P1),purification of diluted bitumen by compound reagent(P2)and recovery of diluent(P3).In P1,under the optimal reaction conditions of 70℃,10 min,m(diluent)/m(bitumen)=0.3g/g,the viscosity of diluted bitumen at 70℃ was 3.2Pa·s.In P2,under the optimal reaction conditions of V(HCl,6%)/m(diluted bitumen)=0.2m L/g,m(Ca Cl2)/m(diluted bitumen)=0.01g/g,70℃,mixing time 10 min,settling time 20 min,the mechanical impurities removal rate(MIRR)could reach 93.5%.In P3,the recovery rate of diluent was 98%,MIRR remained above 92% after diluent being recycled 5 times.The technology has the advantages of short settling time and thorough removal of MIRR in bitumen.
【Fund】: 国家自然科学基金项目(21276253)
【CateGory Index】: TE624.5
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