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11.发明授权
公开(公告)号：US4164466A
公开(公告)日：1979-08-14
申请号：US888284
申请日：1978-03-20
CPC分类号： C10G1/045
摘要： A coal deashing process wherein a feed mixture comprising soluble coal products, insoluble coal products and solvent is separated in a first separation zone into a first heavy phase and a first light phase comprising soluble coal products, solvent and some insoluble coal products. The first light phase is withdrawn and introduced into a second separation zone wherein it separates into a second heavy phase comprising insoluble coal products, soluble coal products and some solvent and a second light phase comprising soluble coal products and solvent. The second heavy phase is withdrawn and at least a portion is recycled to the first separation zone to increase the yield of separable soluble coal products ultimately recovered by the process. In alternate embodiments, additional solvent can be added to the first light phase before introduction into the second separation zone or the recycled portion of the second heavy phase may be introduced into a treatment zone before reintroduction into the first separation zone. The treatment zone effects an increase in the molecular weight of at least a portion of the recycled second heavy phase which facilitates subsequent separation in the first separation zone.
摘要翻译： 一种煤脱渣方法，其中将包含可溶性煤产物，不溶性煤产物和溶剂的进料混合物在第一分离区中分离成第一重相和包含可溶性煤产物，溶剂和一些不溶性煤产品的第一轻相。 将第一轻相取出并引入第二分离区，其中其分离成包含不溶性煤产物，可溶性煤产物和一些溶剂的第二重相，以及包含可溶性煤产物和溶剂的第二轻相。 第二重相被取出，并且至少一部分被再循环到第一分离区，以增加最终通过该方法回收的可分离的可溶性煤产品的产率。 在替代实施方案中，可以在引入第二分离区之前将另外的溶剂加入到第一轻相中，或者可以在重新引入第一分离区之前将第二重相的再循环部分引入处理区。 处理区域使再循环的第二重质相的至少一部分的分子量增加，这有助于在第一分离区域中随后的分离。
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公开(公告)号：US4162956A
公开(公告)日：1979-07-31
申请号：US887866
申请日：1978-03-20
申请人： Donald E. Rhodes
发明人： Donald E. Rhodes
摘要： An improved coal deashing process wherein coal is mixed with a coal liquefaction process solvent, solubilized and flashed to provide a prepared mixture and the prepared mixture is mixed with a deashing solvent to produce a feed mixture. Thereafter, the feed mixture is separated in a first separation zone into a first heavy fraction comprising insoluble coal products and a first light fraction comprising soluble coal products and solvents. The first light fraction is recovered and a second portion of the deashing solvent is mixed with the first light fraction prior to introduction into a second separation zone wherein an improved separation occurs to produce a second light fraction comprising the solvents and a second heavy fraction comprising the soluble coal products which is recovered. The second light fraction is withdrawn and separated in a third separation zone into a third heavy fraction comprising the liquefaction process solvent for recycle to aid in solubilization of the coal and a third light fraction comprising the deashing solvent for recycle to aid in the production of the feed mixture.
摘要翻译： 改进的煤脱硫方法，其中煤与煤液化工艺溶剂混合，溶解并闪蒸以提供制备的混合物，并将制备的混合物与脱溶剂混合以产生进料混合物。 此后，将进料混合物在第一分离区中分离成包含不溶性煤产物的第一重馏分和包含可溶性煤产物和溶剂的第一轻馏分。 第一轻馏分被回收，并且第二部分的除溶剂在引入第二分离区之前与第一轻馏分混合，其中发生改进的分离以产生包含溶剂的第二轻馏分和包含溶剂的第二重馏分 可回收的可溶性煤制品。 将第二轻馏分在第三分离区域中取出并分离成第三重馏分，其包含用于再循环的液化过程溶剂以辅助煤的溶解，以及包含用于再循环的除溶剂的第三轻馏分以辅助生产 饲料混合物。
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公开(公告)号：US4153538A
公开(公告)日：1979-05-08
申请号：US888299
申请日：1978-03-20
摘要： A process for maintaining the fluid-like properties of a heavy phase being withdrawn from a separation zone maintained at elevated temperature and pressure during periods in which the flow of this heavy phase is terminated due to pressure reduction valve plugging or to permit cleaning of downstream processing apparatus. When the flow of withdrawn heavy phase is interrupted, deashed coal is melted, if necessary, and introduced under pressure into the withdrawal conduit to mix with the heavy phase therein. The mixture of deashed coal and heavy phase retains the fluid-like properties exhibited by the heavy phase and flow can be resumed once the downstream apparatus is repaired. Alternatively, other high-boiling aromatic materials may be used instead of the deashed coal.
摘要翻译： 一种保持重质相的流体状特性的方法，其从分离区取出，分离区保持在升高的温度和压力下，在此期间，由于减压阀堵塞而使该重质相的流动终止，或允许清洗下游加工 仪器。 当取出的重质相的流动被中断时，如果需要，排出的煤被熔化，并在压力下引入到排出管道中以与其中的重相混合。 脱灰煤和重相的混合物保留了重相显示的流体状特性，一旦下游装置被修复就可以恢复流动。 或者，可以使用其它高沸点芳族物质代替脱灰煤。
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