摘要:
A process for recovering liquefied C3 compounds from a natural gas stream containing C3 compounds which comprises (a) chilling the natural gas stream under conditions sufficient to liquefy the natural gas, whereby a mixture comprising liquid natural gas (LNG) and liquid C3 compounds is formed; (b) fractionating the mixture comprising liquid natural gas (LNG) and liquid C3 compounds in a separation zone under sub-atmospheric pressure and under conditions predetermined to vaporize a significant portion of the natural gas present while retaining the C3 compounds as a liquid fraction; and (c) recovering separately from the separation zone natural gas and liquid C3 compounds.
摘要翻译:一种从含有C 3+化合物的天然气流中回收液化的C 3 H 3化合物的方法,其包括(a)在足以液化天然气的条件下冷却天然气流, 从而形成包含液体天然气(LNG)和液体C 3+化合物的混合物; (b)在亚大气压下和预定的条件下,在分离区中将包含液体天然气(LNG)和液体C 3 H 3化合物的混合物分馏以蒸发存在的大部分天然气,同时保持 作为液体馏分的C 3 H 3化合物; 和(c)与分离区分离天然气和液体C 3 N 3化合物。
摘要:
A method of protecting a surface of a device from residual polishing compound comprises applying a thin barrier layer of coating material to the surface of the device; polishing the surface with a polishing compound; rinsing the polishing compound from the device; and removing the thin barrier layer from the surface of the device to remove the residual polishing compound.
摘要:
A universal CAD-neutral data management system capable of two-way exchange of information between a CAD-neutral database and any one of a variety of proprietary CAD graphics platforms. An updateable CAD-neutral database includes parameter descriptions arrayed against parameter values and may further include parameter type information.
摘要:
A process for condensing a C3-C4 hydrocarbon vapor which comprises contacting the C3-C4 hydrocarbon vapor with a heat exchanger surface which is cooled by contact with LNG and recovering a liquefied C3-C4 product therefrom.