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1. 发明授权

US4565622A Method of liquefying brown coal 失效
标题翻译：液化褐煤的方法
公开(公告)号：US4565622A
公开(公告)日：1986-01-21
申请号：US550122
申请日：1983-11-09
申请人： Yukio Nakako , Tetsuo Matsumura , Toshio Ozawa , Kaizaburo Saito , Shin-ichi Katsushima , Shin-ichi Oya , Toshiaki Okui , Yutaka Mito , Osamu Okuma , Tomoji Takahashi
发明人： Yukio Nakako , Tetsuo Matsumura , Toshio Ozawa , Kaizaburo Saito , Shin-ichi Katsushima , Shin-ichi Oya , Toshiaki Okui , Yutaka Mito , Osamu Okuma , Tomoji Takahashi
IPC分类号： C10G1/06 , C10G1/00 , C10G1/08
CPC分类号： C10G1/002 , C10G1/083
摘要： A method for the liquefaction of brown coal which comprises effecting primary hydrogenation at a temperature and pressure sufficient to promote the efficient hydrogenation of a slurry prepared by adding an iron-based catalyst and a slurrying solvent to brown coal; distilling all or a portion of the primary hydrogenation product, whereby a naphtha fraction, a middle distillate oil fraction, a heavy distillate oil fraction and a distillation residue are produced; recycling a portion of said middle distillate oil, said heavy distillate oil fraction and said distillation residue to said primary hydrogenation step as the slurrying solvent; removing ash from the remaining portion of the distillation residue, thereby separating the same into an insoluble fraction containing ash, insoluble organic matter or a mixture thereof, and a soluble fraction as a solution in said solvent; and feeding said soluble fraction and said middle and heavy distillate fractions, to a fixed-bed column reactor packed with a molybdenum-based catalyst for secondary hydrogenation at a temperature and pressure sufficient to promote the efficient hydrogenation thereof; and separating the naphtha fraction from the secondary hydrogenation product and recycling all or a portion of the remainder to said primary hydrogenation step as the slurrying solvent therefor.
摘要翻译：一种用于液化褐煤的方法，其包括在足以促进通过向褐煤中加入铁基催化剂和浆化溶剂制备的浆料的有效氢化的温度和压力下进行初级氢化; 蒸馏全部或一部分初级氢化产物，由此制备石脑油馏分，中间馏分油馏分，重馏分油馏分和蒸馏残余物; 将所述中间馏分油，所述重馏分油馏分和所述蒸馏残余物的一部分循环到所述初级氢化步骤作为浆化溶剂; 从蒸馏残余物的剩余部分除去灰分，从而将其分离成含有灰分，不溶性有机物或其混合物的不溶性级分，以及作为所述溶剂中的溶液的可溶性级分; 并将所述可溶部分和所述中重馏分部分加入到填充有钼基催化剂的固定床反应器中，以在足以促进其有效氢化的温度和压力下进行二次氢化; 并将所述石脑油馏分与二次氢化产物分离，并将其余部分的全部或一部分循环到所述初级氢化步骤作为其制浆溶剂。

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