摘要:
A system and method for the concurrent condensation of a nitrogen- rich vapor and vaporization of an oxygen-rich liquid in a distillation column based air separation unit is provided. The disclosed system includes a condenser-reboiler heat exchanger located between a lower pressure column and a higher pressure column and configured to condense a nitrogen-rich vapor from the higher pressure column and partially vaporize an oxygen-rich liquid from the lower pressure column. Within the condenser-reboiler heat exchanger, the nitrogen-rich vapor flows in an upward direction such that any non- condensables present in the nitrogen-rich vapor will accumulate proximate the upper portion or top of the condenser-reboiler modules where they can be easily removed through venting.
摘要:
An oxygen liquefier system may be configured to defrost an oxygen line included therein. The system may include one or more sieve beds, a liquid oxygen reservoir, an oxygen line, a controller, a heating apparatus, and/or other components. The one or more sieve beds are configured to extract oxygen from air obtained from an ambient environment. The liquid oxygen reservoir is configured to store oxygen extracted at the one or more sieve beds that has been liquefied. The oxygen line is configured to provide fluid communication between the one or more sieve beds and the liquid oxygen reservoir. The controller is configured to detect a blockage caused by frozen liquid within the oxygen line based on a liquid oxygen production rate. The heating apparatus is configured to defrost the oxygen line to melt frozen liquid within the oxygen line responsive to the detection of the blockage.
摘要:
The invention relates to a device (100) for preparing a substance stream (1.1) containing hydrogen and methane, comprising the following components: (i) at least one heat exchanger (KS1) for cooling a substance stream (1.1) to be prepared; (ii) at least one separating unit (A, A1, A2, A2') for purifying the substance stream (3) to be prepared into a hydrogen and methane-rich substance stream (5); (iii) at least one cooling unit (KS2) for cooling the hydrogen and methane-rich substance stream (5); and (iv) at least one cryogenic gas separating unit (KS3) for separating the hydrogen and methane-rich substance stream (6) into at least one hydrogen-rich substance stream (7) and at least one methane-rich substance stream (8, 9). The invention further relates to a method for preparing a substance stream.
摘要:
Cet ensemble d'échangeurs de chaleur (1) comprend deux échangeurs (10, 50), comprenant chacun un empilement de plaques parallèles (12, 52) définissant une première et une deuxième faces de raccordement adjacentes. L'ensemble d'échangeurs de chaleur (1) comprend en outre une enceinte (30) entre la première et la deuxième face de raccordement, des compartiments primaires (30P) dans l'enceinte pour canaliser du fluide primaire à travers la première face de raccordement et la deuxième face de raccordement, ainsi qu'un compartiment secondaire dans l'enceinte pour canaliser du fluide secondaire.
摘要:
본 발명은 액화천연가스의 저장용기 및 제작방법에 관한 것으로서, 액화천연가스는 물론 일정한 압력으로 가압된 액화천연가스를 효율적으로 저장하여 소비지에 공급할 수 있고, 저온 특성이 우수한 금속의 사용을 최소화하여 제작 비용을 절감할 수 있도록 구성된 내부쉘을 갖는 액화천연가스 저장 용기 및 제작방법에 관한 것이다. 본 발명에 따른 액화천연가스의 저장용기는, 액화천연가스의 저장용기에 있어서, 상기 액화천연가스가 내측에 저장되는 내부쉘(910); 상기 내부쉘(910)과의 사이에 공간을 형성하도록 상기 내부쉘(910)의 외측을 감싸는 외부쉘(920); 상기 내부쉘(910)과 상기 외부쉘(920)을 지지하도록 상기 내부쉘(910)과 상기 외부쉘(920) 사이의 공간에 설치되는 지지대; 상기 내부쉘(910)과 상기 외부쉘(920) 사이의 공간에 설치되며, 열전달을 감소시키는 단열층부;를 포함하는 것을 특징으로 한다.
摘要:
Das erfindungsgemäße Verdichtersystem für eine Prozessgasanlage mit Wärmerückeinspeisung weist einen Verdichter zum Verdichten von feuchtem Prozessgas, der mindestens eine Verdichterstufe aufweist, und eine Prozessgaskühlereinheit auf, die zum Kühlen des Prozessgases stromab der Verdichterstufe geschaltet ist und mindestens einen ersten und einen zweiten mit einem Kühlmedium betriebenen Prozessgaskühler aufweist, wobei die Prozessgaskühler jeweils einen individuellen, mit dem Prozessgas beaufschlagten Prozessgaskühlermantel mit einem darin untergebrachten, mit dem Kühlmedium beaufschlagten Prozessgaskühlerbündel aufweisen, prozessgasseitig unmittelbar hintereinander geschaltet sowie derart ausgelegt und mit dem Kühlmedium betreibbar sind, dass von dem prozessgasseitig stromauf angeordneten Prozessgaskühler von dem Prozessgas ein vorherbestimmter Wärmestrom abführbar ist, wodurch der thermodynamische Zustand des Prozessgases zwischen den Prozessgaskühlern im Bereich der Taupunktlinie angesiedelt ist, und mittels des prozessgasseitig stromab angeordneten Prozessgaskühlers das Prozessgas auf eine vorherbestimmte Temperatur kühlbar ist. Unter der Taupunktlinie ist die Linie in einem Druck-Enthalpie-Diagramm für das Prozessgas zu verstehen, die die thermodynamischen Zustände des Prozessgases markiert, bei denen in dem Prozessgas die Feuchtigkeit ausfällt.
摘要:
Methods and apparatus for heating and cooling portions of a fluid are provided. The method may include flowing a stream of a fluid through a heat exchanger, separating a liquid component from the stream of the fluid, flowing the liquid component through the heat exchanger, and redirecting the flow of the stream back through the heat exchanger, thereby cooling the initial stream of fluid flowing through the heat exchanger and heating the liquid component flowing through the heat exchanger. The apparatus may include a housing, a heat exchanger disposed within the housing, a refrigeration system in fluid communication with the heat exchanger, and a control system in fluid communication with the heat exchanger.
摘要:
Ce procédé comprend le passage du courant de charge (12) dans un premier échangeur thermique (16) pour un échange thermique avec un courant (60) de réfrigérant gazeux produit dans un premier cycle (26) de réfrigération comprenant une première turbine (34) de détente dynamique. Il comprend le passage d'un courant de charge pré-refroidie (18) dans un deuxième échangeur thermique (20) pour un échange thermique avec un deuxième courant (62) de réfrigérant gazeux produit dans un deuxième cycle de réfrigération (28) comprenant une deuxième turbine (42) de détente dynamique. Il comporte le passage d'un courant de gaz naturel liquéfié (22) dans un troisième échangeur thermique pour un échange thermique avec un troisième courant (64) de réfrigérant produit dans un troisième cycle (30) de réfrigération comprenant une troisième turbine (52) de détente dynamique, distincte de la première turbine (34) et de la deuxième turbine (42).
摘要:
A method for capturing carbon dioxide from a flue gas includes (i) removing moisture from a flue gas to yield a dried flue gas; (ii) compressing the dried flue gas to yield a compressed gas stream; (iii) reducing the temperature of the compressed gas stream to a temperature T1 using a first heat exchanger; (iv) reducing the temperature of the compressed gas stream to a second temperature T2 using a second heat exchanger stream, where T2 1 and at least a portion of the carbon dioxide from the compressed gas stream condenses, thereby yielding a solid or liquid condensed-phase carbon dioxide component and a light-gas component; (v) separating the condensed-phase component from the light-gas component to produce a condensed-phase stream and a light-gas stream; and (vi) using at least a portion of the condensed-phase stream and/or the light- gas stream in the second heat exchanger.
摘要:
Die Erfindung betrifft einen gewickelten Wärmetauscher (1) mit einer Mehrzahl von Rohren, die um ein Kernrohr gewickelt sind, mit einem Mantel, der einen Außenraum um die Rohre begrenzt, dadurch gekennzeichnet, dass ein erstes und ein zweites Bauteil des gewickelten Wärmetauschers aus unterschiedlichen Materialien bestehen.