公开(公告)号：US4661624A

公开(公告)日：1987-04-28

申请号：US639772

申请日：1984-08-13

申请人： Tsuan Y. Chang ,  Neil Yeoman ,  Ronald F. Cascone

发明人： Tsuan Y. Chang ,  Neil Yeoman ,  Ronald F. Cascone

IPC分类号： C07C67/36

CPC分类号： C07C67/36

摘要： A process for the production of alkyl formates such as methyl formate from the reaction of a carbon monoxide containing gas and an alkyl alcohol, such as methanol, is disclosed. The process features low conversions of alkyl alcohol to alkyl formate, high catalyst concentrations, higher reaction zone temperatures, improved process thermal efficiencies, and reduced apparatus requirements.

摘要翻译： 公开了从含一氧化碳的气体和烷基醇如甲醇的反应制备甲酸甲酯等甲酸甲酯的方法。 该方法具有烷基醇到甲酸烷基酯的低转化率，高催化剂浓度，更高的反应区温度，改进的工艺热效率和减少的装置要求。

公开(公告)号：US4391612A

公开(公告)日：1983-07-05

申请号：US267959

申请日：1981-05-28

申请人： Tsuan Y. Chang

发明人： Tsuan Y. Chang

IPC分类号： C10J3/54

CPC分类号： C10J3/54 ,  C10J3/526 ,  C10J3/78 ,  C10J2300/093 ,  C10J2300/0943 ,  C10J2300/0946 ,  C10J2300/0956 ,  C10J2300/0979 ,  C10J2300/0996 ,  C10J2300/1606 ,  C10J2300/1807 ,  C10J2300/1846

摘要： A gaseous effluent rich in hydrogen and carbon monoxide is produced from coal by a process which involves the gasification of the coal in a fluidized gasification zone interconnected with a combustor zone comprising a combustion unit and an entrained flow lift column with transfer of solid material between the gasification zone and the combustor zone, in a system in which lime-treated coal and steam are fed to the gasification zone to which heat is supplied by clinker material transferred from the combustor zone. At the same time, gasified coal residue or "char" and clinker are transferred from the gasification zone to the combustor zone wherein the char is brought into contact with air in the presence of the clinker particles circulating from the bottom of the gasification zone, and the final gas and heat values from the coal are extracted by combustion of the char, the coal ash with the lime emerging as fine particles. Heat from the combustion of the char is absorbed by the circulating clinker in the combustion unit and in the lift column of the combustor zone and this heat is transferred to the gasification zone when the clinker is supplied to it. The clinker transferred to the gasification zone, in accordance with the invention, has a predetermined particle size of the order of 1/32 inch to 1/4 inch and represents clinker which is removed from the combustor zone by the action of the rising gases. The thus gas-transported clinker is separated from "fines." The separated clinker particles are transferred to the gasification zone to supply required heat.

摘要翻译： 富含氢气和一氧化碳的气态流出物是通过一种方法产生的，该方法涉及将煤气化在与包含燃烧单元和夹带式流动提升塔的燃烧区相互连通的流化气化区中，其中固体材料在 气化区和燃烧区，其中石灰处理的煤和蒸汽被供给到通过从燃烧器区转移的熟料供应的热量的气化区。 同时，气化煤渣或“焦炭”和熟料从气化区转移到燃烧区，其中在与气化区底部循环的熟料颗粒存在下，炭与空气接触， 来自煤的最终气体和热值通过焦炭的燃烧提取，煤灰与石灰作为细颗粒出现。 来自燃烧器的燃烧的热量被燃烧单元中的循环熟料和燃烧器区域的提升塔吸收，并且当熟料被供给时，该热被传递到气化区。 根据本发明，转移到气化区的熟料具有1/32英寸至1/4英寸量级的预定粒度，代表通过上升气体的作用从燃烧器区域移除的熟料。 这样气体输送的熟料与“罚款”分开。 将分离的熟料颗粒转移到气化区以提供所需的热量。

公开(公告)号：US4486959A

公开(公告)日：1984-12-11

申请号：US565421

申请日：1983-12-27

申请人： Tsuan Y. Chang

发明人： Tsuan Y. Chang

IPC分类号： C10F5/00 ,  F26B3/00

CPC分类号： C10F5/00

摘要： An economic process for thermally dewatering a solid carbonaceous material containing substantial amounts of chemically attached water is disclosed. The process is capable of economically removing up to 95% of the chemically attached water in the disclosed process.

摘要翻译： 公开了一种用于热脱水含有大量化学附着水的固体含碳材料的经济方法。 该方法能够在所公开的方法中经济地除去高达95％的化学连接的水。