Process for producing dry, sulfur-free, CH.sub.4 -enriched synthesis or
fuel gas
    1.
    发明授权
    Process for producing dry, sulfur-free, CH.sub.4 -enriched synthesis or fuel gas 失效
    生产干,无硫,富含CH4的合成或燃气的方法

    公开(公告)号:US5232467A

    公开(公告)日:1993-08-03

    申请号:US900388

    申请日:1992-06-18

    CPC分类号: C10K1/04 C10K1/14

    摘要: Cryogenic liquefied natural gas (LNG) is used as a source of refrigeration and methane in the production of dry sulfur-free, methane-enriched synthesis gas or fuel gas. Raw syngas is indirectly and directly contacted with cryogenic liquefied natural gas (LNG) and cooled thereby below the dew point. Water is thereby condensed out and separated from the process gas stream. Further, the liquid LNG vaporizes and increases the methane content of the dewatered synthesis gas. Cold liquid absorbent solvent contacts the dry CH.sub.4 -enriched synthesis gas in an absorption column and absorbs the acid gases e.g. H.sub.2 S and COS and optionally H.sub.2 S+COS+CO.sub.2. In a preferred embodiment, the rich solvent absorbent is regenerated in a stripping column and the released acid gases are sent to a Claus unit for the production of elemental sulfur. In a second embodiment, the regenerated lean liquid absorbent solvent may be mixed with the dry, purified synthesis gas leaving from the top of the absorption tower. This mixture is then directly and optionally indirectly contacted with additional cryogenic liquid LNG. The CH.sub.4 content of the synthesis or fuel gas is thereby increased to a value in the range of about 10 to 80 mole %. By means of a decanter, dry, sulfur-free methane-enriched syngas product is separated from liquid absorbent solvent. The liquid absorbent solvent is then recycled to the absorption column.

    Fluidized catalytic cracking process with improved light cycle gas oil
stripping
    3.
    发明授权
    Fluidized catalytic cracking process with improved light cycle gas oil stripping 失效
    流化催化裂化工艺改进轻循环瓦斯油汽提

    公开(公告)号:US4033857A

    公开(公告)日:1977-07-05

    申请号:US643050

    申请日:1975-12-22

    IPC分类号: C10G7/00 C10G37/00

    CPC分类号: C10G7/00

    摘要: The present application discloses a fluidized catalytic cracking process wherein light cycle gas oil is stripped of heavy naphtha components employing reboiled light cycle gas oil as stripping vapor. Heavy naphtha vapors stripped from the light cycle gas oil are returned to the reaction vapor as primary stripping vapor. This process results in increased naphtha octanes, and reduced sour water production from a fluidized catalytic cracking unit.

    摘要翻译: 本申请公开了一种流化催化裂化方法,其中轻循环瓦斯油用重沸石循环瓦斯油作为汽提蒸汽汽提重质石脑油成分。 从轻质循环瓦斯油中汽提的重质石脑油蒸气作为一次汽提蒸汽返回到反应蒸气。 该方法导致石脑油辛烷值增加,并且从流化催化裂化装置减少酸水产生。

    Partial oxidation process
    5.
    发明授权
    Partial oxidation process 失效
    部分氧化工艺

    公开(公告)号:US4889657A

    公开(公告)日:1989-12-26

    申请号:US288213

    申请日:1988-12-22

    IPC分类号: C01B3/36 C10J3/46

    摘要: The hot effluent gas stream comprising H.sub.2 +CO and entrained molten slag and ash from the partial oxidation of an ash-containing heavy liquid hydrocarbonaceous fuel, an ash-containing solid carbonaceous fuel, or mixtures thereof is passed in succession through a radiant cooling zone, a metal gas transfer line with internal metal heat transfer surfaces, and a convection cooling zone. By maintaining the internal metal heat transfer surfaces of the gas transfer line where turbulent flow of gas stream occurs at a temperature in the range of about 150.degree. F. to below 700.degree. F. by noncontact heat exchange with a coolant, substantially no molten slag or ash sticks to the metal heat transfer surfaces on the inside of the gas transfer line. Simultaneously, where laminar flow fo the gas stream within the gas transfer line occurs, slag and ash entrained in the gas stream is prevented from sticking to the inside metal heat transfer surfaces of the gas transfer line by maintaining the temperature of said inside surfaces in the range of about 700.degree. F. to 1,200.degree. F. by noncontact heat exchange with a coolant.

    摘要翻译: 包含H 2 + CO的热流出气流和来自含灰分重质液体烃类燃料,含灰分的固体碳质燃料或其混合物的部分氧化的夹带的熔渣和灰分连续通过辐射冷却区, 具有内部金属传热表面的金属气体输送管线和对流冷却区域。 通过保持气体输送管线的内部金属传热表面,其中气流的湍流在约150°F至低于700°F的温度范围内发生,通过与冷却剂的非接触热交换,基本上没有熔渣 或灰渣粘附到气体输送管线内部的金属传热表面。 同时,当气体输送管线内的气流发生层流时,通过将所述内表面的温度保持在气体输送管线的内部金属传热表面,防止气流中夹带的炉渣和灰渣粘附到气体输送管线的内部金属传热表面 通过与冷却剂的非接触热交换而在约700°F至1200°F的范围内。

    Apparatus for production of synthesis gas from heavy hydrocarbon fuels
containing high metal concentrations
    7.
    发明授权
    Apparatus for production of synthesis gas from heavy hydrocarbon fuels containing high metal concentrations 失效
    用于从含有高金属浓度的重质烃燃料生产合成气的装置

    公开(公告)号:US4483690A

    公开(公告)日:1984-11-20

    申请号:US533672

    申请日:1983-09-19

    摘要: Heavy hydrocarbon fuel containing high metal concentrations and all of the soot which is rich in metals that is produced in the system, are feedstocks in a partial oxidation process for the simultaneous continuous production of two streams of cleaned, raw synthesis gas having high and low H.sub.2 O/dry gas mole ratios, respectively. In the process, all of the stream of hot, raw synthesis gas containing entrained particulate carbon and ash that is produced in a first gas generator is quench cooled and scrubbed with water in a quench tank. Simultaneously, split streams of hot raw synthesis gas containing entrained particulate carbon and ash are produced in a second gas generator. One split gas stream is quench cooled and scrubbed with water in a quench tank while the other split gas stream is simultaneously cooled in a convection-type gas cooler and then scrubbed with water. All of the soot recovered from the quench cooling and scrubbing waters in the process is recycled to the first gas generator as a portion of the reactant fuel feed. Fouling and plugging of the tubes of a convection-type gas cooler associated with the second gas generator is prevented.

    摘要翻译: 含有高金属浓度的重质烃燃料和在系统中产生的富含金属的所有烟灰是部分氧化过程中的原料,用于同时连续生产具有高和低H 2 O的两股净化的原始合成气流 /干气摩尔比。 在该过程中,在第一气体发生器中产生的包含夹带的颗粒状碳和灰分的所有热的原始合成气流被淬火冷却并在骤冷罐中用水洗涤。 同时,在第二气体发生器中产生含有夹带的颗粒碳和灰分的热原料合成气的分流。 一个裂解的气流被淬火冷却,并在骤冷箱中用水洗涤,而另一个裂解气流同时在对流式气体冷却器中冷却,然后用水洗涤。 在该过程中从淬火冷却和洗涤水中回收的所有烟灰作为反应物燃料进料的一部分再循环至第一气体发生器。 防止与第二气体发生器相关联的对流式气体冷却器的管的结垢和堵塞。

    Production of synthesis gas from heavy hydrocarbon fuels containing high
metal concentrations
    8.
    发明授权
    Production of synthesis gas from heavy hydrocarbon fuels containing high metal concentrations 失效
    从含有高金属浓度的重质烃燃料生产合成气

    公开(公告)号:US4411670A

    公开(公告)日:1983-10-25

    申请号:US385742

    申请日:1982-06-07

    IPC分类号: C01B3/36 C10J3/46 C10J3/84

    摘要: Heavy hydrocarbon fuel containing high metal concentrations and all of the soot which is rich in metals that is produced in the system, are feedstocks in a partial oxidation process for the simultaneous continuous production of two streams of cleaned, raw synthesis gas having high and low H.sub.2 O/dry gas mole ratios, respectively. In the process, all of the stream of hot, raw synthesis gas containing entrained particulate carbon and ash that is produced in a first gas generator is quench cooled and scrubbed with water in a quench tank. Simultaneously, split streams of hot raw synthesis gas containing entrained particulate carbon and ash are produced in a second gas generator. One split gas stream is quench cooled and scrubbed with water in a quench tank while the other split gas stream is simultaneously cooled in a convection-type gas cooler and then scrubbed with water. All of the soot recovered from the quench cooling and scrubbing waters in the process is recycled to the first gas generator as a portion of the reactant fuel feed. Fouling and plugging of the tubes of a convection-type gas cooler associated with the second gas generator is prevented.

    摘要翻译: 含有高金属浓度的重质烃燃料和在系统中产生的富含金属的所有烟灰是部分氧化过程中的原料,用于同时连续生产具有高和低H 2 O的两股净化的原始合成气流 /干气摩尔比。 在该过程中,在第一气体发生器中产生的包含夹带的颗粒状碳和灰分的所有热的原始合成气流被淬火冷却并在骤冷罐中用水洗涤。 同时,在第二气体发生器中产生含有夹带的颗粒碳和灰分的热原料合成气的分流。 一个裂解的气流被淬火冷却,并在骤冷箱中用水洗涤,而另一个裂解气流同时在对流式气体冷却器中冷却,然后用水洗涤。 在该过程中从淬火冷却和洗涤水中回收的所有烟灰作为反应物燃料进料的一部分再循环至第一气体发生器。 防止与第二气体发生器相关联的对流式气体冷却器的管的结垢和堵塞。

    Removal of acidic gases in a gasification power system with production
of hydrogen
    10.
    发明授权
    Removal of acidic gases in a gasification power system with production of hydrogen 有权
    在生产氢气的气化电力系统中去除酸性气体

    公开(公告)号:US6090356A

    公开(公告)日:2000-07-18

    申请号:US150846

    申请日:1998-09-10

    摘要: This invention is an integrated process which removes acidic gases such as H.sub.2 S, COS and CO.sub.2 from raw synthesis gas. The H.sub.2 S and COS is concentrated and separately recovered. The separately recovered CO.sub.2 is used as a moderator with the purified syngas in a combustion turbine. The process comprises separating H.sub.2 S and COS from a raw synthesis gas by absorption with a liquid solvent, removing coabsorbed CO.sub.2 by stripping the solvent with nitrogen, separating the H.sub.2 S and COS from the solvent and recovering sulfur from the H.sub.2 S and COS. The energy value of the CO.sub.2 and its value as a diluent in reducing NO.sub.x is recovered by using the CO.sub.2 as a moderator during combustion of the purified synthesis gas in a gas turbine.

    摘要翻译: 本发明是从原料合成气中除去H 2 S,COS和CO 2等酸性气体的综合工艺。 H2S和COS浓缩并分离回收。 单独回收的二氧化碳用作在燃气轮机中具有纯化合成气的缓和剂。 该方法包括通过用液体溶剂吸收从原料合成气中分离H 2 S和COS,通过用氮气汽提溶剂除去共吸附的CO 2,从溶剂中分离H 2 S和COS,并从H 2 S和COS中回收硫,其能量值 在燃气轮机中净化的合成气的燃烧期间,通过使用CO 2作为调节剂来回收CO 2及其作为还原NOx中的稀释剂的值。