Spray drying method
    1.
    发明授权
    Spray drying method 失效
    喷雾干燥法

    公开(公告)号:US4171243A

    公开(公告)日:1979-10-16

    申请号:US859943

    申请日:1977-12-12

    CPC classification number: F26B25/005 B01D1/18 F26B21/04 Y10S159/26

    Abstract: A method for spray drying an aqueous slurry in a spray drying tower. Hot effluent gases containing steam are divided into two portions. One portion is heated and recycled to the spray drying tower as part of the heated gas stream which dries the slurry. The other portion is condensed and subjected to a contaminant-removal operation such as scrubbing or electrostatic precipitation, under controlled conditions.

    Abstract translation: 喷雾干燥塔中的含水浆料的喷雾干燥方法。 含有蒸汽的热废气分为两部分。 一部分被加热并再循环到喷雾干燥塔中,作为干燥浆料的加热气流的一部分。 在受控条件下,另一部分被冷凝并进行诸如洗涤或静电沉淀的污染物去除操作。

    Sulfonating method
    2.
    发明授权
    Sulfonating method 失效
    磺化方法

    公开(公告)号:US4267119A

    公开(公告)日:1981-05-12

    申请号:US106247

    申请日:1979-12-21

    Abstract: An organic reactant is sulfonated by injecting it into a stream of gas comprising sulfur trioxide, at a venturi, and the resulting reaction mixture is quenched with a stream of cooled, recycled reaction product immediately downstream of the venturi in a conduit in which particles of reaction mixture are agglomerated into a film of the recycle stream and in which additional sulfonation reaction occurs.

    Abstract translation: 在文氏管中将有机反应物注入包含三氧化硫的气体流中进行磺化,并将所得反应混合物在紧邻文丘里管下游的冷却的再循环反应产物流中在其中在其中的反应颗粒中进行骤冷 混合物凝聚成循环物流的膜,并且在其中发生另外的磺化反应。

    Gas scrubbing apparatus
    5.
    发明授权
    Gas scrubbing apparatus 失效
    气体洗涤装置

    公开(公告)号:US4216001A

    公开(公告)日:1980-08-05

    申请号:US2244

    申请日:1979-01-10

    CPC classification number: B01D53/18 B01D47/06 Y10S261/54

    Abstract: A scrubbing system including scrubbers having straight through or direct line gas flow, with steam pretreatment of the gases supplied to the scrubber. The scrubbing solution may be recycled. Where steam is present in the process, the effluent gas is partially recycled to the process upstream of the scrubber to maintain a predetermined level of steam moisture in the gases entering the scrubber.

    Abstract translation: 一种洗涤系统,包括具有直通或直线气流的洗涤器,以及供给洗涤器的气体的蒸汽预处理。 洗涤溶液可以再循环。 在该过程中存在蒸汽的情况下,废气部分地再循环到洗涤器上游的过程中,以保持进入洗涤器的气体中的预定水平的蒸气水分。

    Gas scrubbing method
    6.
    发明授权
    Gas scrubbing method 失效
    气体洗涤法

    公开(公告)号:US4096236A

    公开(公告)日:1978-06-20

    申请号:US746681

    申请日:1976-12-02

    CPC classification number: B01D53/18 B01D47/06

    Abstract: A scrubbing system including scrubbers having straight through or direct line gas flow, with steam pretreatment of the gases supplied to the scrubber. The scrubbing solution may be recycled. Where steam is present in the process, the effluent gas is partially recycled to the process upstream of the scrubber to maintain a predetermined level of steam moisture in the gases entering the scrubber.

    Abstract translation: 一种洗涤系统,包括具有直通或直线气流的洗涤器,以及供给洗涤器的气体的蒸汽预处理。 洗涤溶液可以再循环。 在该过程中存在蒸汽的情况下,废气部分地再循环到洗涤器上游的过程中,以保持进入洗涤器的气体中的预定水平的蒸气水分。

    Process for quantitatively converting urea to ammonia on demand
    7.
    发明授权
    Process for quantitatively converting urea to ammonia on demand 有权
    按需定量将尿素转化为氨的方法

    公开(公告)号:US06761868B2

    公开(公告)日:2004-07-13

    申请号:US09951287

    申请日:2001-09-12

    CPC classification number: B01D53/79 C01B32/50 C01C1/086

    Abstract: Processes and apparatus for quantitatively converting urea to ammonia on demand are disclosed. One process includes the steps of: receiving a demand rate signal for ammonia; feeding reactants including urea and water into a reactor to provide a reaction mixture; and controlling temperature and pressure in the reactor to produce a gaseous product stream including ammonia and carbon dioxide at substantially constant concentrations. Another process includes the steps of: feeding molten urea or solid urea to a reactor; feeding water (liquid or steam) to the reactor; and reacting the urea and water at elevated temperature and pressure to form a gaseous product stream including ammonia and carbon dioxide.

    Abstract translation: 公开了将尿素定量转化成氨的方法和装置。 一个过程包括以下步骤:接收氨的需求速率信号; 将包括尿素和水的反应物进料到反应器中以提供反应混合物; 并控制反应器中的温度和压力以产生基本恒定浓度的包含氨和二氧化碳的气态产物流。 另一种方法包括以下步骤:将熔融的尿素或固体尿素送入反应器; 将水(液体或蒸汽)送入反应器; 并在升高的温度和压力下使尿素和水反应形成包含氨和二氧化碳的气态产物流。

    Process and apparatus for quantitatively converting urea to ammonia on demand
    8.
    发明申请
    Process and apparatus for quantitatively converting urea to ammonia on demand 有权
    根据需要定量地将尿素转化为氨的方法和设备

    公开(公告)号:US20050207961A1

    公开(公告)日:2005-09-22

    申请号:US11121275

    申请日:2005-05-03

    CPC classification number: B01D53/79 C01B32/50 C01C1/086

    Abstract: Processes and apparatus for quantitatively converting urea to ammonia on demand are disclosed. One process includes the steps of: receiving a demand rate signal for ammonia; feeding reactants including urea and water into a reactor to provide a reaction mixture; and controlling temperature and pressure in the reactor to produce a gaseous product stream including ammonia and carbon dioxide at substantially constant concentrations. Another process includes the steps of: feeding molten urea or solid urea to a reactor; feeding water (liquid or steam) to the reactor; and reacting the urea and water at elevated temperature and pressure to form a gaseous product stream including ammonia and carbon dioxide.

    Abstract translation: 公开了将尿素定量转化成氨的方法和装置。 一个过程包括以下步骤:接收氨的需求速率信号; 将包括尿素和水的反应物进料到反应器中以提供反应混合物; 并控制反应器中的温度和压力以产生基本恒定浓度的包含氨和二氧化碳的气态产物流。 另一种方法包括以下步骤:将熔融的尿素或固体尿素送入反应器; 将水(液体或蒸汽)送入反应器; 并在升高的温度和压力下使尿素和水反应形成包含氨和二氧化碳的气态产物流。

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