Abstract:
Methods and apparatus are disclosed for efficient cooling within air liquefaction processes with integrated use of cold recycle from a thermal energy store.
Abstract:
The present invention relates to a liquefied natural gas storage container and a manufacturing method thereof, the liquefied natural gas storage container comprising an inner shell which can effectively store a liquefied natural gas compressed at a predetermined pressure and can supply the same to a place for consumption, and can minimize the use of a metal having excellent low temperature characteristics to save on manufacturing costs. According to the present invention, the liquefied natural gas storage container comprises: an inner shell (910) in which the liquefied natural gas is stored inside; an outer shell (920) for encompassing the outer portion of the inner shell (910) so as to form a space between the inner shell (910) and the outer shell; a support provided in the space between the inner shell (910) and the outer shell (920) to support the inner shell (910) and the outer shell (920); and a heat insulation layer portion for reducing heat transfer, provided in the space between the inner shell (910) and the outer shell (920).
Abstract:
A system for generating liquid oxygen (LOX) for portable use by a patient includes a patient portable unit configured to store LOX and deliver gaseous oxygen (GOX) to the patient, and a mobile base unit configured to generate LOX by cryogenic separation of air and deliver the generated LOX to the patient portable unit. The mobile base unit includes a compressor that receives and pressurizes air, a purifier that removes impurities from the pressurized air, a heat exchanger that cools the purified air, a cryocooler that further cools the air to cryogenic temperatures, and a distillation unit that separates the cryogenic air into multiple products, including LOX and one or more cold byproducts. The separated LOX is communicated toward storage, and at least one of the cold byproducts is passed through the heat exchanger to facilitate heat transfer from incoming purified air to the at least one cold byproduct in order to cool the purified air.
Abstract:
본 발명은 가압액화천연가스 생산 방법 및 이에 사용되는 생산 시스템에 관한 것으로서, 천연가스전으로부터 천연가스를 공급받아 산성가스를 제거하는 과정 없이 탈수하는 탈수단계와, 탈수단계를 마친 천연가스를 NGL(Natural Gas Liquid)을 분별하는 과정 없이 13 ~ 25bar의 압력과 -120 ~ -95℃의 온도로 액화하여 가압액화천연가스를 생산하는 액화단계를 포함하는 가압액화천연가스 생산 방법 및 이에 사용되는 생산 시스템이 제공된다. 본 발명에 따르면, 플랜트 제작에 소요되는 비용과 유지비를 절감시킬 수 있고, 액화천연가스의 생산 단가를 줄일 수 있으며, 기존 방식으로는 경제성을 확보하기 어려웠던 중소형 가스전에서의 경제적인 이익 및 투자회수 기간의 단축을 보장할 수 있다.
Abstract:
Condensable vapors such as carbon dioxide are separated from light gases in a process stream. The systems and methods employ a particle bed cooled by an in-bed heat exchanger to desublimate the condensable vapors from the process stream. The condensable vapors are condensed on the bed particles while the light gases from the process stream, which are not condensed, form a separated light-gas stream. The separated light-gas stream can be used in a recuperative heat exchanger to cool the process stream.
Abstract:
The present invention relates to methods and systems for capture of CO 2 from a gas stream by anti-sublimation, comprising the steps of evacuation of liquefied CO 2 from a frosting vessel (1); evacuation of residual gases containing CO 2 from the frosting vessel (1); and refrigeration of evacuated residual gases to a temperature at which liquid CO 2 is formed.
Abstract:
Systems and methods for releasing and replacing stored energy comprise capturing inlet air from the ambient environment so the inlet air flows in a first general direction. Released liquid air flows in a second general direction, the second general direction being substantially opposite to the first general direction. The released liquid air is pumped to pressure, and the released liquid air and inlet air flow past each other such that heat exchange occurs. The inlet air warms the released liquid air such that the released liquid air is substantially vaporized, and the released liquid air cools the inlet air. Moisture and carbon dioxide are removed from the inlet air, and the inlet air is compressed and cooled such that the inlet air is substantially liquefied. The substantially liquefied air replaces a portion of the released liquid air; and the substantially vaporized released liquid air is combusted with fuel to produce electricity.
Abstract:
Systems and methods for releasing and replacing stored energy comprise capturing inlet air from the ambient environment so the inlet air flows in a first general direction. Released liquid air flows in a second general direction, the second general direction being substantially opposite to the first general direction. The released liquid air is pumped to pressure, and the released liquid air and inlet air flow past each other such that heat exchange occurs. The inlet air warms the released liquid air such that the released liquid air is substantially vaporized, and the released liquid air cools the inlet air. Moisture and carbon dioxide are removed from the inlet air, and the inlet air is compressed and cooled such that the inlet air is substantially liquefied. The substantially liquefied air replaces a portion of the released liquid air; and the substantially vaporized released liquid air is combusted with fuel to produce electricity.
Abstract:
Die Erfindung betrifft eine Anlage (1), die zur Verringerung eines Kohlendioxidgehalts eines kohlendioxidhaltigen und kohlenwasserstoffreichen Gasstroms (A) eingerichtet ist, mit einer ersten und einer zweiten Abscheideeinheit (10, 20), die jeweils einen in einem Abscheideraum (12, 22) angeordneten und mit einem Kältemittel (C) speisbaren Kryokondensator (11, 21) aufweist, wobei Mittel (30, 40) vorgesehen sind, die dafür eingerichtet sind, in einem ersten Betriebsmodus das Kältemittel (C) durch den Kryokondensator (11 ) nur der ersten Abscheideeinheit (10) und den kohlendioxidhaltigen und kohlenwasserstoffreichen Gasstrom (A) durch den Abscheideraum (12) nur der ersten Abscheideeinheit (10) zu führen und die zweite Abscheideeinheit (20) zu erwärmen und aus der zweiten Abscheideeinheit (20) einen kohlendioxidreichen Strom (D) abzuziehen, und die ferner dafür eingerichtet sind, in einem zweiten Betriebsmodus das Kältemittel (C) durch den Kryokondensator (21) nur der zweiten Abscheideeinheit (20) und den kohlendioxidhaltigen und kohlenwasserstoffreichen Gasstrom (A) durch den Abscheideraum (22) nur der zweiten Abscheideeinheit (20) zu führen und die erste Abscheideeinheit (10) zu erwärmen und aus dieser einen kohlendioxidreichen Strom (D) abzuziehen. Ein entsprechendes Verfahren ist ebenfalls Gegenstand der vorliegenden Erfindung.