Landfill gas treatment method with polishing
    11.
    发明授权
    Landfill gas treatment method with polishing 有权
    垃圾填埋气处理方法抛光

    公开(公告)号:US09580369B2

    公开(公告)日:2017-02-28

    申请号:US15135885

    申请日:2016-04-22

    摘要: A method for recovering methane gas from a landfill involves the use of a main absorber, a flash system, an optional ancillary absorber and an optional polishing absorber. The recovered gas is maintained at a temperature that enhances a solvent's ability to absorb carbon dioxide from the recovered gas. While the main absorber uses the solvent for absorbing most of the carbon dioxide from the recovered gas, the flash system removes much of the carbon dioxide from the solvent exiting the main absorber. In some examples, at least portion of the flash system operates at subatmospheric pressure to create a vacuum that draws in a generally inert stripper gas (e.g., air, nitrogen, etc.) at atmospheric pressure. The stripper gas helps remove carbon dioxide from the solvent in the flash system.

    摘要翻译: 从垃圾填埋场回收甲烷的方法包括使用主吸收器,闪光系统,任选的辅助吸收器和可选的抛光吸收器。 回收的气体保持在提高溶剂从回收气体中吸收二氧化碳的能力的温度。 当主吸收剂使用溶剂从回收的气体中吸收大部分二氧化碳时,闪蒸系统从离开主吸收器的溶剂中除去大部分二氧化碳。 在一些示例中,闪蒸系统的至少一部分在低于大气压的压力下操作以产生在大气压下吸入通常为惰性的汽提气体(例如空气,氮气等)的真空。 汽提器气体有助于从闪光系统中的溶剂中除去二氧化碳。

    METHODS AND SYSTEMS FOR IMPROVING THE ENERGY EFFICIENCY OF CARBON DIOXIDE CAPTURE
    12.
    发明申请
    METHODS AND SYSTEMS FOR IMPROVING THE ENERGY EFFICIENCY OF CARBON DIOXIDE CAPTURE 有权
    提高二氧化碳捕集能源效率的方法与系统

    公开(公告)号:US20160214057A1

    公开(公告)日:2016-07-28

    申请号:US15008964

    申请日:2016-01-28

    IPC分类号: B01D53/62 B01D53/14 B01D53/78

    摘要: A system for carbon dioxide capture from a gas mixture comprises an absorber that receives a lean solvent system stream (containing a chemical solvent, physical-solvent additive, and water) from the stripper, a stripper that receives the rich solvent stream from the absorber and produces the product carbon dioxide and the lean solvent through the use of a reboiler in fluid communication with a lower portion of the stripper, a condenser in fluid communication with a vapor outlet of the stripper, a cross-exchanger in fluid communication with a rich solvent system outlet from the absorber and a rich solvent system inlet on the stripper, and a splitter. The splitter is configured to separate the rich solvent system stream into a first portion and a second portion, where the first portion directly passes to the stripper and the second portion passes through the cross-exchanger prior to passing to the stripper.

    摘要翻译: 从气体混合物捕获二氧化碳的系统包括:吸收器,其从汽提器接收贫溶剂体系流(含有化学溶剂,物理溶剂添加剂和水),从吸收器接收富溶剂流的汽提器和 通过使用与汽提器的下部流体连通的再沸器,与汽提塔的蒸气出口流体连通的冷凝器,与富溶剂流体连通的交换器来产生产物二氧化碳和贫溶剂 来自吸收器的系统出口和汽提器上的富溶剂系统入口以及分离器。 分流器构造成将富溶剂系统流分离成第一部分和第二部分,其中第一部分直接通到汽提器,第二部分在通过汽提器之前穿过交换器。

    CLAUS HYDROCARBON DESTRUCTION VIA STAGED SOLVENT REGENERATION
    13.
    发明申请
    CLAUS HYDROCARBON DESTRUCTION VIA STAGED SOLVENT REGENERATION 审中-公开
    通过分析溶剂再生来解决石油的破坏

    公开(公告)号:US20160121262A1

    公开(公告)日:2016-05-05

    申请号:US14991802

    申请日:2016-01-08

    申请人: Frank Bela

    发明人: Frank Bela

    IPC分类号: B01D53/14

    摘要: A solvent for absorbing H2S and CO2 is regenerated using two regenerators. Rich solvent is fed to a first regenerator producing a first acid gas stream from the top, and a partially regenerated solvent from the bottom. The partially regenerated solvent is fed to a second regenerator producing an overhead vapor stream from the top and a lean solvent stream from the bottom. A portion of the second regenerator overhead vapor stream may be cascaded to the first regenerator to contact rich solvent. The first acid gas stream and the remaining second regenerator overhead vapor stream are respectively fed to the first and second reaction zones of a two-stage Claus reaction furnace. Substantially all volatile organic contaminants are stripped in the first regenerator, and thus favorably destroyed in the first reaction furnace zone by virtue of higher local combustion temperatures and closer approach to oxidizing conditions.

    摘要翻译: 使用两个再生器再生用于吸收H 2 S和CO 2的溶剂。 将富溶剂进料至第一再生器,从顶部产生第一酸性气体流,并从底部进料部分再生的溶剂。 将部分再生的溶剂进料到第二再生器,从顶部产生顶部蒸气流,并从底部产生贫溶剂流。 第二再生器塔顶蒸气流的一部分可以级联到第一再生器以接触富溶剂。 第一酸性气体流和剩余的第二再生器塔顶蒸气流分别进料到两级克劳斯反应炉的第一和第二反应区。 基本上所有的挥发性有机污染物在第一再生器中被汽提,并且因此在第一反应炉区域由于更高的局部燃烧温度和更接近氧化条件被有利地破坏。

    SYSTEM AND METHOD FOR WASTE HEAT UTILIZATION IN CARBON DIOXIDE CAPTURE SYSTEMS IN POWER PLANTS
    20.
    发明申请
    SYSTEM AND METHOD FOR WASTE HEAT UTILIZATION IN CARBON DIOXIDE CAPTURE SYSTEMS IN POWER PLANTS 审中-公开
    电厂二氧化碳捕获系统中废热利用的系统与方法

    公开(公告)号:US20140208782A1

    公开(公告)日:2014-07-31

    申请号:US13752592

    申请日:2013-01-29

    IPC分类号: F25B25/02

    摘要: Disclosed herein is a system comprising an absorber; the absorber permitting contact between a flue gas stream that comprises carbon dioxide and a solvent to produce a carbon dioxide rich solvent; a regenerator disposed downstream of the absorber; the regenerator being operative to dissociate the carbon dioxide from the solvent; and a compression system disposed downstream of the regenerator comprising a plurality of compression stages; where each compression stage comprises a compressor that is operative to pressurize the carbon dioxide that is dissociated from the solvent; and where at least some of the compression stages comprise a knockout tank disposed upstream of the compressor and an intercooling heat exchanger disposed downstream of the compressor; where the knockout tank is operative to remove liquid present in the carbon dioxide and where the intercooling heat exchanger is operative to remove heat generated during the pressurizing of the carbon.

    摘要翻译: 本文公开了一种包括吸收器的系统; 所述吸收器允许包含二氧化碳的烟道气流与溶剂之间接触以产生富含二氧化碳的溶剂; 设置在所述吸收器的下游的再生器; 再生器可操作以使二氧化碳从溶剂中解离; 以及设置在所述再生器的下游的压缩系统,包括多个压缩级; 其中每个压缩级包括压缩机,其可操作以对从溶剂中分离的二氧化碳加压; 并且其中至少一些压缩级包括设置在压缩机上游的脱模罐和设置在压缩机下游的中间冷却热交换器; 其中所述脱模罐用于去除存在于二氧化碳中的液体,并且其中中间冷却热交换器用于去除在碳加压期间产生的热量。