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公开(公告)号：US09920988B2
公开(公告)日：2018-03-20
申请号：US15242961
申请日：2016-08-22
申请人： Vijayaraghavan S. Chakravarthy , Michael J. Lockett , Dante P. Bonaquist , Maulik R. Shelat , Karl K. Kibler
发明人： Vijayaraghavan S. Chakravarthy , Michael J. Lockett , Dante P. Bonaquist , Maulik R. Shelat , Karl K. Kibler
CPC分类号： F25J3/0486 , F25J3/04412 , F25J3/04769 , F25J3/04787 , F25J3/04793 , F25J3/04824 , F25J3/04884 , F25J5/005 , F25J2200/52 , F25J2200/54 , F25J2250/02 , F25J2250/04 , F25J2250/10 , F25J2250/20
摘要： A method and main heat exchange system for use in a cryogenic air separation plant in which down-flow and thermosiphon heat exchangers are employed to partially vaporize an oxygen-rich liquid produced in a lower pressure column and to condense the nitrogen-rich vapor in a higher pressure column. A greater proportion of the oxygen-rich liquid can be partially vaporized in the down-flow heat exchangers than in the thermosiphon heat exchangers and the nitrogen-rich vapor condensed in the thermosiphon heat exchangers can have a higher oxygen content than the nitrogen-rich vapor condensed in the down-flow heat exchangers. This allows the higher pressure column to operate at a lower pressure than would otherwise be possible. A central conduit can extend from the higher pressure column into the lower pressure column to introduce the nitrogen-rich vapor into at least the down-flow heat exchangers for purposes of reducing pressure drop and column height.
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公开(公告)号：US5240652A
公开(公告)日：1993-08-31
申请号：US958201
申请日：1992-10-08
摘要： An apparatus for distributing liquid over the cross section of a liquid-vapor contacting column comprising a distributor plate having orifices for downward liquid flow and risers for upward vapor flow. Above the distributor plate is a trough for receiving liquid to be distributed. The vapor risers directly below the trough extend through the trough. The trough floor has annular openings around the penetrating vapor risers to discharge liquid onto the distributor plate below.
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公开(公告)号：US09453674B2
公开(公告)日：2016-09-27
申请号：US14296588
申请日：2014-06-05
申请人： Vijayaraghavan S. Chakravarthy , Michael J. Lockett , Dante P. Bonaquist , Maulik R. Shelat , Karl K. Kibler
发明人： Vijayaraghavan S. Chakravarthy , Michael J. Lockett , Dante P. Bonaquist , Maulik R. Shelat , Karl K. Kibler
CPC分类号： F25J3/0486 , F25J3/04412 , F25J3/04769 , F25J3/04787 , F25J3/04793 , F25J3/04824 , F25J3/04884 , F25J5/005 , F25J2200/52 , F25J2200/54 , F25J2250/02 , F25J2250/04 , F25J2250/10 , F25J2250/20
摘要： A method and main heat exchange system for use in a cryogenic air separation plant in which down-flow and thermosiphon heat exchangers are employed to partially vaporize an oxygen-rich liquid produced in a lower pressure column and to condense the nitrogen-rich vapor in a higher pressure column. A greater proportion of the oxygen-rich liquid can be partially vaporized in the down-flow heat exchangers than in the thermosiphon heat exchangers and the nitrogen-rich vapor condensed in the thermosiphon heat exchangers can have a higher oxygen content than the nitrogen-rich vapor condensed in the down-flow heat exchangers. This allows the higher pressure column to operate at a lower pressure than would otherwise be possible. A central conduit can extend from the higher pressure column into the lower pressure column to introduce the nitrogen-rich vapor into at least the down-flow heat exchangers for purposes of reducing pressure drop and column height.
摘要翻译： 一种用于低温空气分离装置的方法和主要热交换系统，其中使用下流和热虹吸热交换器来部分蒸发在低压塔中产生的富氧液体并将富氮蒸气冷凝在 高压塔。 富氧液体中的较大比例可以在下流热交换器中部分蒸发，而不是在热虹吸热交换器中，在热虹吸热交换器中冷凝的富氮蒸汽可以具有比富氮蒸气更高的氧含量 在下流热交换器中冷凝。 这允许高压塔在比其他可能的压力更低的压力下操作。 为了降低压降和柱高度，中心导管可以从高压塔延伸到低压塔中，以将富氮蒸气引入至少下流式热交换器中。
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公开(公告)号：US5386691A
公开(公告)日：1995-02-07
申请号：US181150
申请日：1994-01-12
CPC分类号： F25J3/0409 , F25J3/04103 , F25J3/04206 , F25J3/04296 , F25J3/04412 , F25J3/04678 , F25J2205/04 , F25J2250/40 , F25J2250/50 , F25J2250/58 , Y10S62/924
摘要： A cryogenic air separation system wherein a portion of the feed air is condensed against vaporizing product from the air separation plant and at least some of the vaporized bottom liquid from the higher pressure column is withdrawn from the system, bypassing the lower pressure column thereby increasing the L/V ratio in the upper portion of the lower pressure column to compensate for reduced liquid in that column caused by the feed air liquefaction.
摘要翻译： 一种低温空气分离系统，其中一部分进料空气与来自空气分离装置的蒸发产物冷凝，并且来自高压塔的至少一些蒸发的底部液体从系统中排出，绕过低压塔，从而增加 L / V比在低压塔的上部，以补偿由进料空气液化引起的该塔中的还原液体。
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公开(公告)号：US20150168053A1
公开(公告)日：2015-06-18
申请号：US14296588
申请日：2014-06-05
申请人： Vijayaraghavan S. Chakravarthy , Michael J. Lockett , Dante P. Bonaquist , Maulik R. Shelat , Karl K. Kibler
发明人： Vijayaraghavan S. Chakravarthy , Michael J. Lockett , Dante P. Bonaquist , Maulik R. Shelat , Karl K. Kibler
IPC分类号： F25J3/04
CPC分类号： F25J3/0486 , F25J3/04412 , F25J3/04769 , F25J3/04787 , F25J3/04793 , F25J3/04824 , F25J3/04884 , F25J5/005 , F25J2200/52 , F25J2200/54 , F25J2250/02 , F25J2250/04 , F25J2250/10 , F25J2250/20
摘要： A method and main heat exchange system for use in a cryogenic air separation plant in which down-flow and thermosiphon heat exchangers are employed to partially vaporize an oxygen-rich liquid produced in a lower pressure column and to condense the nitrogen-rich vapor in a higher pressure column. A greater proportion of the oxygen-rich liquid can be partially vaporized in the down-flow heat exchangers than in the thermosiphon heat exchangers and the nitrogen-rich vapor condensed in the thermosiphon heat exchangers can have a higher oxygen content than the nitrogen-rich vapor condensed in the down-flow heat exchangers. This allows the higher pressure column to operate at a lower pressure than would otherwise be possible. A central conduit can extend from the higher pressure column into the lower pressure column to introduce the nitrogen-rich vapor into at least the down-flow heat exchangers for purposes of reducing pressure drop and column height.
摘要翻译： 一种用于低温空气分离装置的方法和主要热交换系统，其中使用下流和热虹吸热交换器来部分蒸发在低压塔中产生的富氧液体并将富氮蒸气冷凝在 高压塔。 富氧液体中的较大比例可以在下流热交换器中部分蒸发，而不是在热虹吸热交换器中，在热虹吸热交换器中冷凝的富氮蒸汽可以具有比富氮蒸气更高的氧含量 在下流热交换器中冷凝。 这允许高压塔在比其他可能的压力更低的压力下操作。 为了降低压降和柱高度，中心导管可以从高压塔延伸到低压塔中，以将富氮蒸气引入至少下流式热交换器中。
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公开(公告)号：US5537840A
公开(公告)日：1996-07-23
申请号：US454885
申请日：1995-05-31
IPC分类号： F28F3/08 , B01D3/14 , B01D3/32 , F25J3/00 , F25J3/02 , F25J3/04 , F25J5/00 , F28D1/00 , F28D9/00
CPC分类号： F25J5/002 , B01D3/14 , B01D3/322 , F25J3/04412 , F28D9/0068 , F25J2235/50 , F25J2245/50 , F25J2250/04 , F25J2290/32 , F28D2021/0033 , Y10S62/903
摘要： A downflow heat exchanger, particularly applicable as the main condenser/reboiler of a double column cryogenic air separation plant, wherein liquid distribution for uniform flow is carried out above the vapor passages and the well distributed liquid is passed into the liquid passages, preferably angularly onto the bridge fins, and then down through the liquid passages cocurrently with vapor in adjacent vapor passages.
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公开(公告)号：US5440884A
公开(公告)日：1995-08-15
申请号：US274885
申请日：1994-07-14
IPC分类号： F25J3/04
CPC分类号： F25J3/04206 , F25J3/0409 , F25J3/04103 , F25J3/04175 , F25J3/04296 , F25J3/04303 , F25J3/04412 , F25J3/04678 , F25J3/04703 , F25J3/04872 , F25J2200/38 , F25J2200/90 , F25J2235/58 , F25J2250/40 , F25J2250/50 , Y10S62/924
摘要： A cryogenic rectification system which advantageously separates feed air wherein the thermodynamic irreversibility of the argon column top condenser and the lower pressure column is reduced by using a stripping column upstream of the double column main plant.
摘要翻译： 一种有利地分离进料空气的低温精馏系统，其中通过使用双塔主设备上游的汽提塔来降低氩塔顶冷凝器和低压塔的热力学不可逆性。
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公开(公告)号：US5100448A
公开(公告)日：1992-03-31
申请号：US555039
申请日：1990-07-20
CPC分类号： B01J19/32 , F25J3/04412 , F25J3/04678 , F25J3/04909 , F25J3/04921 , B01J2219/32206 , B01J2219/3221 , B01J2219/3222 , B01J2219/32227 , B01J2219/32408 , B01J2219/326 , F25J2290/10 , F25J2290/12 , F25J2290/44 , Y10S62/906 , Y10S62/924
摘要： A cryogenic distillation system employing a multisection column wherein structure packing of different packing density is employed in at least two sections of the column.
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公开(公告)号：US20160356546A1
公开(公告)日：2016-12-08
申请号：US15242961
申请日：2016-08-22
申请人： Vijayaraghavan S. Chakravarthy , Michael J. Lockett , Dante P. Bonaquist , Maulik R. Shelat , Karl K. Kibler
发明人： Vijayaraghavan S. Chakravarthy , Michael J. Lockett , Dante P. Bonaquist , Maulik R. Shelat , Karl K. Kibler
CPC分类号： F25J3/0486 , F25J3/04412 , F25J3/04769 , F25J3/04787 , F25J3/04793 , F25J3/04824 , F25J3/04884 , F25J5/005 , F25J2200/52 , F25J2200/54 , F25J2250/02 , F25J2250/04 , F25J2250/10 , F25J2250/20
摘要： A method and main heat exchange system for use in a cryogenic air separation plant in which down-flow and thermosiphon heat exchangers are employed to partially vaporize an oxygen-rich liquid produced in a lower pressure column and to condense the nitrogen-rich vapor in a higher pressure column. A greater proportion of the oxygen-rich liquid can be partially vaporized in the down-flow heat exchangers than in the thermosiphon heat exchangers and the nitrogen-rich vapor condensed in the thermosiphon heat exchangers can have a higher oxygen content than the nitrogen-rich vapor condensed in the down-flow heat exchangers. This allows the higher pressure column to operate at a lower pressure than would otherwise be possible. A central conduit can extend from the higher pressure column into the lower pressure column to introduce the nitrogen-rich vapor into at least the down-flow heat exchangers for purposes of reducing pressure drop and column height.
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公开(公告)号：US5632934A
公开(公告)日：1997-05-27
申请号：US620202
申请日：1996-03-22
CPC分类号： F25J3/04909 , B01J19/32 , B01J2219/3221 , B01J2219/3222 , B01J2219/32227 , B01J2219/32241 , B01J2219/32244 , B01J2219/32255 , B01J2219/32258 , B01J2219/326
摘要： Improved capacity structured packing arranged in a section or brick wherein the packing in the base region of the section is configured differently from the structured packing in the bulk region making resistance to gas flow between the packing sheets in the base region less than resistance to gas flow between the sheets in the bulk region.
摘要翻译： 改进的布置在部分或砖中的规格填料，其中，该部分的基底区域中的填料与主体区域中的规定填料不同，使得能够抵抗基部区域中的填料板之间的气流小于耐气体流动 在大块区域之间的片材之间。
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