公开(公告)号：US20150338161A1

公开(公告)日：2015-11-26

申请号：US14410803

申请日：2013-06-27

申请人： KOREA INSTITUTE OF ENERGY RESEARCH

发明人： Jong-Ho PARK ,  Jong-kee PARK ,  Hyung Chul YOON ,  Tae Sung JUNG ,  Hee-Tae BEUM

IPC分类号： F25J1/00

CPC分类号： F25J1/0022 ,  F25J1/0052 ,  F25J1/0055 ,  F25J1/0214 ,  F25J1/0216 ,  F25J1/0262 ,  F25J1/0292

摘要： Provided is a system for liquefying natural gas including: a pre-cooling means; a gas-liquid separating means; a first heat exchanging means; a second heat exchanging means; a first expanding means; a second expanding means; a first mixed refrigerant converting means; a pre-cooled refrigerant supplying means; a natural gas supplying means; and a mixer. Provided is also a method for liquefying natural gas including: a first pre-cooling operation (S01); a first mixed refrigerant separating operation (S02); a first introducing operation (S03); a first expanded refrigerant forming operation (S04); a second introducing operation (S05); a second expanded refrigerant forming operation (S06); and a second cooling operation (S07).

摘要翻译： 提供了一种用于液化天然气的系统，包括：预冷装置; 气液分离装置; 第一热交换装置; 第二热交换装置; 第一个扩张的手段; 第二扩张手段; 第一混合制冷剂转化装置; 预冷却的制冷剂供给装置; 天然气供给装置; 和搅拌机。 本发明还提供一种液化天然气的方法，包括：第一预冷作业（S01）; 第一混合制冷剂分离操作（S02）; 第一次引入操作（S03）; 第一膨胀制冷剂形成操作（S04）; 第二次引入操作（S05）; 第二膨胀制冷剂形成操作（S06）; 和第二冷却操作（S07）。

公开(公告)号：US20180195009A1

公开(公告)日：2018-07-12

申请号：US15577635

申请日：2016-05-27

申请人： KOREA INSTITUTE OF ENERGY RESEARCH

发明人： Dong Woo CHO ,  Jong Nam KIM ,  Bharat Singh RANA ,  Hee Tae BEUM ,  Hyung Chul YOON ,  Tae Sung JUNG ,  Sang Sup HAN

IPC分类号： C10G29/22 ,  C10G53/02 ,  B01D17/02 ,  E21B43/34

CPC分类号： C10G29/22 ,  B01D3/00 ,  B01D17/02 ,  B01D17/047 ,  B01D19/00 ,  C02F1/00 ,  C10G31/08 ,  C10G53/02 ,  C10G2300/203 ,  E21B43/34

摘要： Disclosed is a method of removing organic acids from crude oil using a gas hydrate inhibitor and a catalyst in crude oil production facilities or oil-refining facilities, in which organic acids can be removed from crude oil by reacting the crude oil with mono-ethylene glycol (MEG), di-ethylene glycol (DEG), tri-ethylene glycol (TEG), methanol or derivatives thereof, as a gas hydrate inhibitor in the presence of a tungstophosphoric acid (TPA) catalyst, whereby the acidity of the crude oil can be lowered by 93% or more, and no catalyst deactivation occurs because magnesium (Mg)-based catalysts are not used. Furthermore, a continuous process is achieved in such a manner that the gas hydrate inhibitor and the catalyst are not discarded but are collected from the crude oil from which organic acids have been removed, and are thus recycled, thereby realizing environmentally friendly, economical and efficient removal of organic acids from crude oil.