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Characterization of Ultra Fine Solids(BS) in Athabasca Bitumen

Chinese Journal of Structural Chemistry 2004年第7期23卷 751-754页

作者：李再峰 Judy KUNG 涂云 Luba S.Kotlyar Keng H.Chung College of Chemistry and Molecular Engineering Qingdao University of Science and TechnologyShandong 266042China National research Council of canada Institute for Chemical Process andEnvironmental TechnologyMontreal Road CampusOttawaOntarioCanada K1A 0R6 syncrude canada ltd.edmonton research centre9421-17th avenue EdmontonAlberta Canada T6N 1H4

the ultra fine (<200 nm) inorganic solids (BS) were separated from bitumen which was washed by toluene and centrifugated at 2000 rpm. the result of PAS FTIR and image of TEM showed that the structure of BS particles w... 详细信息

the ultra fine (the result of PAS FTIR and image of TEM showed that the structure of BS particles was smiliar to that of kaolinite clay. On the surface of BS, both toluene insoluble organic matter and structural OH group are detected at the same time. the surface characteristics imparted a bi-wettable nature to the BS. As a result, the BS is able to stabilize fine water emulsion in the bitumen phase. the organic matter associated with BS is a possible factor of the fouling on catalyst and equipment.

关键词： ultra fine solids characterization bitumen

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CHARACTERIZATION OF BITUMEN PITCH

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Chinese Journal of Chemical Engineering 1996年第4期4卷 80-85页

作者：徐春明胡云翔王仁安林世雄 Keng Chung syncrude canada ltd. Elmonton Research Center9421-17AvenueEdmontonAlbertaCanadaT6N 1H4.

1 INTRODUCTIONCatalytic hydroprocessing is the technology of choice for Bitumen *** com-bines hydrocracking and hydrodesulfurization to the end of increasing liquid yields andimproving product ***,the catalysts used in the process are known todeactivate rather quickly and the process performances are less optimistic than *** tremendous efforts that have been devoted to address the process chemis-

关键词： characterization heavy oil separation

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Agglomerate behavior in a recirculating fluidized bed with sheds： Effect of ring baffles

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Particuology 2018年第3期16卷 143-151页

作者： Francisco J. Sanchez Careaga Cedric Briens Franco Berruti Jennifer McMillan Murray Gray Institute for Chemicals and Fuels from Alternative Resources Western University 22312 Wonderland Rd. Hderton ON NO M2AO Canada edmonton research centre Syncrude Canada Ltd 9421 17th Ave Edmonton AB T6N 1H4 Canada the Petroleum Institute PO Box 2533 Abu Dhabi UAE

the radioactive particle tracking technique was used to study the effect of internal ring baffles on wet agglomerate motion inside a cold flow recirculating fluidized bed. the study found that using such a baffle on its own or above the regular sheds helps reduce the fouling of the stripper section by increasing the residence time that the agglomerates spend above the baffle, thereby reducing the release of the vapors below the baffles that cause fouling of the sheds. Adding down-comers, or flux tubes, to the ring baffles degrades the performance of the baffles, Reducing the length of the flux tubes, so that they do not reach the bottom of the baffle lip results in a further degradation in baffle performance.

关键词： Radioactive particle tracking Fluidized bed Fluid coker Baffles

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Effect of successive sprays on liquid distribution in fluidized beds

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Particuology 2021年第1期19卷 17-24页

作者： Cedric Briens Liliana Pardo Reyes Franco Berruti Jennifer McMillan Institute for Chemicals and Fuels from Alternative Resources Western University22312 Wonderland Rd.IldertonONN0M 2A0Canada edmonton research centre Syncrude Canada Ltd942117th AveEdmontonABT6N 1H4 Canada

In processes such as Fluid Coking^(™),agglomerate formation should be minimized since it reduces the yield of valuable products,and degrades operability because of the fouling of *** experimental model,consisting of an aqueous solution of gum arabic with a dye,has been successfully developed to simulate the formation of agglomerates in the Fluid Coking^(™)process,where bitumen is sprayed into a fluidized bed of coke particles the particles wetted by a spray could be predicted by assuming that all the particles in the wake of bubbles formed from the tip of the spray jet have been wetted by the injected *** transfer of liquid from particles wetted with the spray to dry bed particles was relatively ineffective,as the number of wet particles increased by only 50%.With successive liquid injections,the proportion of the liquid trapped in agglomerates increases in latter injections:large agglomerates from earlier injections accumulate above the grid and are carried by gas bubbles into the spray jet cavity,where they seed fresh agglomerates.

关键词： Fluidized bed Liquid injection Agglomerate formation Fluid Coker

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用于制备聚氨酯纳米复合物的高岭石粒子的表征(英文)

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无机化学学报 2003年第11期19卷 1261-1265页

作者：李再峰王义银 Luba S.Kotlyar Keng H.Chung 青岛科技大学化学与分子工程学院青岛266042 西安交通大学管理学院西安710049 ICPET National Research Council1200 Montreal RoadOttawaOntario syncrude canada ltd. Edmonton Research Centre9421-17th AvenueEdmontonAlberta

Clay such as kaolinite, is commonly used as an additive to modify the thermal properties of polymer. In this paper, the morphology, composition, shape and structure of kaolinite was characterized by various advanced techniques. the TEM/ EDX data showed that the kaolinite had a larger particle size and a Si/Al ratio of 1.8. the individual particle of kaolinite was a single crystalline. TEM also showed that these particles were always stacked together due to the presence of electrostatic cohesive energy and hydrogen bond between plaletes. the PAS FTIR spectra showed that no absorbance of hydroxyl group for hydration water in hydrogen bond region or at 1650cm- 1 was observed at room temperature. It meant a little ability to adsorb water for kaolinite particle. Kaolinite clay also showed no change for its PAS FTIR spectra with increasing temperature. the TGA results revealed that kaolinite almost doesn′ t lose weight at 60℃ due to loss of dehydration of absorbed water, however, it will decomposed around 510℃ and lose its hydroxyl functional group in the form of water (dehydroxylation). the result is consistent with that of PAS FTIR analysis. this suggests that the structural hydroxyl group on the surface of individual kaolinite clay particle is very stable below 500℃ , and the kaolinite composed polymer could be got by the reaction of its stable structural hydroxyl group with isocynate group of polyurethane prepolymer.

关键词：制备聚氨酯纳米复合聚合物高岭石粒子表征

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