Process for production of synthesis gas
    31.
    发明授权
    Process for production of synthesis gas 失效
    合成气生产工艺

    公开(公告)号:US4017271A

    公开(公告)日:1977-04-12

    申请号:US588563

    申请日:1975-06-19

    摘要: A process for the production of a synthesis gas, capable of being upgraded to a high BTU pipeline gas, by the partial oxidation and substantially complete gasification of a carbonaceous material under CO-promoting conditions wherein the carbonaceous material, oxygen, and recycled carbon dioxide from the process are introduced into a molten salt containing an alkali metal carbonate and a minor portion of an alkali metal sulfide, the system being operated at a selected temperature and pressure between 1400.degree. and 2000.degree. F and between 1 and 100 atmospheres. The molar ratio of carbon dioxide to oxygen employed is controlled at from about 0.6:1 to about 1.2:1 to control the CO production and also to maintain the molten salt at a desired operating temperature. Sulfur and ash introduced with the fuel are retained in the molten salt. The gaseous effluent, containing a molar ratio of carbon monoxide to carbon dioxide substantially greater than one, is reacted in a water gas shift reaction, followed by removal of the carbon dioxide present in the gaseous effluent from the shift reaction to produce the synthesis gas, capable of being reacted further under appropriate conditions to produce pipeline gas, methanol, ammonia, or gasoline. At least a portion of the removed carbon dioxide is recycled for admixture with the oxygen to form the feed gas to the molten salt containing the carbonaceous material.

    摘要翻译: 通过在CO促进条件下部分氧化和基本上完全气化碳质材料,生产合成气的方法,其能够升级为高BTU管道气体,其中碳质材料,氧气和循环二氧化碳从 将该方法引入含有碱金属碳酸盐和少量碱金属硫化物的熔盐中,该体系在1400〜2000°F的选择的温度和压力下操作,并且在1〜100个大气压下进行。 将二氧化碳与所使用的氧气的摩尔比控制在约0.6:1至约1.2:1,以控制CO产生并且还将熔融盐保持在期望的操作温度。 与燃料一起引入的硫和灰被保留在熔盐中。 含有一氧化碳与二氧化碳的摩尔比基本上大于1的气态流出物在水煤气变换反应中反应,然后除去存在于来自换档反应的气态流出物中的二氧化碳以产生合成气, 能够在合适的条件下进一步反应生成管道气体,甲醇,氨或汽油。 将去除的二氧化碳的至少一部分再循环用于与氧混合以在含有碳质材料的熔融盐中形成进料气体。

    TWO-STAGE PLASMA PROCESS FOR CONVERTING WASTE INTO FUEL GAS AND APPARATUS THEREFOR

    公开(公告)号:US20230031504A1

    公开(公告)日:2023-02-02

    申请号:US17729664

    申请日:2022-04-26

    摘要: A two-step gasification process and apparatus for the conversion of solid or liquid organic waste into clean fuel, suitable for use in a gas engine or a gas burner, is described. The waste is fed initially into a primary gasifier, which is a graphite arc furnace. Within the primary gasifier, the organic components of the waste are mixed with a predetermined amount of air, oxygen or steam, and converted into volatiles and soot. The volatiles consist mainly of carbon monoxide and hydrogen, and may include a variety of other hydrocarbons and some fly ash. The gas exiting the primary gasifier first passes through a hot cyclone, where some of the soot and most of the fly ash is collected and returned to the primary gasifier. The remaining soot along with the volatile organic compounds is further treated in a secondary gasifier where the soot and the volatile compounds mix with a high temperature plasma jet and a metered amount of air, oxygen or steam, and are converted into a synthesis gas consisting primarily of carbon monoxide and hydrogen. The synthesis gas is then quenched and cleaned to form a clean fuel gas suitable for use in a gas engine or a gas burner. This offers higher thermal efficiency than conventional technology and produces a cleaner fuel than other known alternatives.

    METHODS FOR FUEL CONVERSION
    36.
    发明申请

    公开(公告)号:US20190055123A1

    公开(公告)日:2019-02-21

    申请号:US16166746

    申请日:2018-10-22

    IPC分类号: C01B3/34 C10J3/57 B01J8/12

    摘要: In one embodiment described herein, fuel may be converted into syngas by a method comprising feeding the fuel and composite metal oxides into a reduction reactor in a co-current flow pattern relative to one another, reducing the composite metal oxides with the fuel to form syngas and reduced composite metal oxides, transporting the reduced composite metal oxides to an oxidation reactor, regenerating the composite metal oxides by oxidizing the reduced composite metal oxides with an oxidizing reactant in the oxidation reactor, and recycling the regenerated composite metal oxides to the reduction reactor for subsequent reduction reactions to produce syngas. The composite metal oxides may be solid particles comprising a primary metal oxide and a secondary metal oxide.

    Methods for fuel conversion
    37.
    发明授权

    公开(公告)号:US10144640B2

    公开(公告)日:2018-12-04

    申请号:US14766086

    申请日:2014-02-05

    IPC分类号: C01B3/34 C10J3/57 B01J8/12

    摘要: In one embodiment described herein, fuel may be converted into syngas by a method comprising feeding the fuel and composite metal oxides into a reduction reactor in a co-current flow pattern relative to one another, reducing the composite metal oxides with the fuel to form syngas and reduced composite metal oxides, transporting the reduced composite metal oxides to an oxidation reactor, regenerating the composite metal oxides by oxidizing the reduced composite metal oxides with an oxidizing reactant in the oxidation reactor, and recycling the regenerated composite metal oxides to the reduction reactor for subsequent reduction reactions to produce syngas. The composite metal oxides may be solid particles comprising a primary metal oxide and a secondary metal oxide.

    Cost Effective Plasma Combined Heat and Power System

    公开(公告)号:US20170284229A1

    公开(公告)日:2017-10-05

    申请号:US13832252

    申请日:2013-03-15

    申请人: Axenic Power, LLC

    IPC分类号: F01K13/00 C10J3/57 F01K7/16

    摘要: A method of generating syngas as a primary product from renewable feedstock, fossil fuels, or hazardous waste with the use of a cupola. The cupola operates on inductive heat alone, chemically assisted heat, or plasma assisted heat. Cupola operation is augmented by employing carbon or graphite rods to carry electrical current into the metal bath that is influenced by the inductive element. The method includes the steps of providing a cupola for containing a metal bath; and operating an inductive element to react with the metal bath. A combination of fossil fuel, a hazardous waste, and a hazardous material is supplied to the cupola. A plasma torch operates on the metal bath directly, indirectly, or in a downdraft arrangement. Steam, air, oxygen enriched air, or oxygen are supplied to the metal bath. A pregassifier increases efficiency and a duct fired burner is added to a simple cycle turbine with fossil fuel augmentation.