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    SYSTEMS AND METHODS FOR PRODUCING SULFUROUS ACID
    2.
    发明申请
    SYSTEMS AND METHODS FOR PRODUCING SULFUROUS ACID 有权

    公开(公告)号：US20210363009A1

    公开(公告)日：2021-11-25

    申请号：US17050399

    申请日：2016-05-13

    申请人： AGUA DULCE CAPITAL, LLC

    发明人： Jon BAKER ,  Paul Thomson BAKER

    IPC分类号： C01B17/54 ,  B01J19/24 ,  B01J19/00 ,  B01J4/00

    摘要： A sulfuric acid generating system can include: a primary burn chamber; an exhaust pipe extending from the burn chamber at a first end to an opposite second end; a secondary burn chamber located between the first end and second end; and a primary venturi pump having a gas inlet coupled to an outlet at the second end of the exhaust pipe and having an aqueous media in let and having a fluid outlet. A method of producing sulfurous acid can include: providing sulfur to the primary burn chamber; burning a first portion of the sulfur in the primary burn chamber to form a first portion of sulfur dioxide; burning a second portion of the sulfur in the secondary burn chamber to form a second portion of sulfur dioxide; and mixing the first portion and second portion of sulfur dioxide with an aqueous composition so as to produce aqueous sulfurous acid.

    Energy efficient sulfuric acid system for humid environments
    3.
    发明授权
    Energy efficient sulfuric acid system for humid environments 有权

    公开(公告)号：US10532929B2

    公开(公告)日：2020-01-14

    申请号：US16098818

    申请日：2017-04-19

    申请人： Chemetics Inc.

    发明人： Rene Dijkstra ,  Amit Shah

    IPC分类号： B01D53/26 ,  C01B17/54 ,  C01B17/765 ,  C01B17/80 ,  F28D7/00 ,  F28F9/02

    摘要： A contact process, sulfuric acid system and method are disclosed for producing sulphuric acid with improved operating efficiency in humid environments. The system comprises a pre-drying absorber for pre-drying humid air with weak sulfuric acid. Weak sulfuric acid from the pre-drying absorber is provided to a subsystem comprising two sulfur trioxide absorbers and a heat exchanger for the recovery of heat via steam production. This arrangement allows for a marked increase in steam production (i.e. energy efficiency). In a separate improvement, the emission apparatus for the system can be simplified using a peroxide tail gas scrubber comprising upper and lower scrubber sections in which the upper scrubber section consists essentially of tray type scrubbers.

    Water treatment device
    7.
    发明授权
    Water treatment device 失效
    水处理设备

    公开(公告)号：US3627134A

    公开(公告)日：1971-12-14

    申请号：US3627134D

    申请日：1969-11-12

    申请人： CHEMICAL CORP

    发明人： MATTSON ARVEL H

    IPC分类号： A01C23/04 ,  C01B17/54 ,  C02B1/18

    CPC分类号： A01C23/042 ,  C01B17/54

    摘要： Apparatus for burning sulfur under a forced air draft to produce gaseous sulfur dioxide which is then introduced into a mixing system where the sulfur dioxide is dissolved in a continuing flow of irrigation water to acidify the water. The treated water is then added to a greater flow of irrigation water to increase the effectiveness of the irrigation water in soaking into soil to greater depths and to chemically leach undesirable minerals from the soil such as salt. The sulfur is burned in a two-zoned tank having a sealable lower burning chamber fed with metered air for combustion and an upper gas collection chamber in which the gaseous products of combustion are mixed with additional air and from which they are piped to a mixing chamber for solution in water which is then pumped to the irrigation water.