公开(公告)号：US07074258B2

公开(公告)日：2006-07-11

申请号：US10474128

申请日：2002-03-06

Applicant: Ian Ralph Collins ,  Stephen Paul Goodwin

Inventor： Ian Ralph Collins ,  Stephen Paul Goodwin

IPC: B01D53/28

CPC classification number: C10L3/10 ,  B01D17/005 ,  B01D17/02 ,  B01D17/0202 ,  B01D17/0208 ,  B01D53/1425 ,  B01D53/263 ,  Y02C10/06

Abstract: A process for the removal of water from gas which comprises an absorption step of bringing a gas saturated with water vapor into gas-liquid contact with a water-lean absorbing liquid comprising a water absorbing liquid having a cloud point temperature above the freezing point of water whereby water vapor present in the gas is absorbed into the water-lean absorbing liquid at a temperature below its cloud point to produce a refined gas having a reduced water vapor content and water-loaded absorbing liquid. A regeneration step is provided in which the water-loaded absorbing liquid is heated to above the cloud point temperature of the absorbing liquid whereby the water-loaded absorbing liquid separates into a water-rich phase and an absorbing liquid-rich phase and the absorbing liquid-rich phase is cooled to a temperature below its cloud point prior to recycling the absorbing liquid-rich phase for use as water-lean absorbing liquid in the absorption step.

Abstract translation: 一种从气体中除去水的方法，其包括将饱和水蒸气的气体与含有吸水液体的吸液液体接触的吸收步骤，所述吸水液体包含浊点温度高于水冰点的吸水液体 由此，存在于气体中的水蒸汽在低于其浊点的温度下吸收到吸水稀薄液体中，以产生具有降低的水蒸汽含量和含水吸收液体的精炼气体。 提供再生步骤，其中将水性吸收液体加热到吸收液体的浊点温度以上，由此将水分吸收液体分离成富水相和吸收液体富集相以及吸收液体 在吸收液体富集相再循环之前，在吸收步骤中，作为贫水吸收液体使用富二氧化物相冷却到低于其浊点的温度。

公开(公告)号：US06380136B1

公开(公告)日：2002-04-30

申请号：US09201723

申请日：1998-11-30

Applicant: Christopher Ian Bates ,  Ian Ralph Collins ,  Paul Derek Ravenscroft

Inventor： Christopher Ian Bates ,  Ian Ralph Collins ,  Paul Derek Ravenscroft

IPC: C09K700

CPC classification number: C09K8/92 ,  C09K8/536 ,  C09K8/54 ,  Y10S507/901 ,  Y10S507/902 ,  Y10S507/906 ,  Y10S507/939

Abstract: An oil field production chemical, especially a scale inhibitor, is in the form of particles thereof carrying a coating e.g. of a dispersing agent. The coating may be polymeric such as an oligomeric polyacid polyester, a polymeric alkoxylated alcohol or a fatty acid polyamine condensate or it may also be a surfactant and may be used in the form of a suspension in an inert oil, such as diesel oil or kerosene which may be injected into a subterranean formation to inhibit the formation of deposits, e.g. scale in oil wells over a longer period than compounds free of the coating.