Process and apparatus for quantitatively converting urea to ammonia on demand
    1.
    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分类号: B01D53/79 C01B32/50 C01C1/086

    摘要: 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.

    摘要翻译: 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。

    Sovent removal process
    4.
    发明授权
    Sovent removal process 失效
    清除过程

    公开(公告)号:US5723433A

    公开(公告)日:1998-03-03

    申请号:US475046

    申请日:1995-06-07

    摘要: A method of removing solvents from a paste includes introducing a heated paste into a channel of a dryer under pressure selected so as to avoid flashing of any of the components of the paste. At the inlet of the channel, the pressure is dropped, resulting in the flashing of selected components of the paste. As the paste advances through the channel heat is applied to the paste. Vapor liberated during the flashing acts as a motive force to convey the paste along the channel. The resulting concentrate is collected at an outlet of the channel.

    摘要翻译: 从膏中除去溶剂的方法包括将加热的糊剂在压力选择的干燥器的通道中引入,以避免糊料中任何组分的闪烁。 在通道的入口处,压力下降,导致糊料中所选组分的闪烁。 当浆料通过通道进入时,将热量施加到糊料上。 在闪烁期间解散的气体作为沿着通道传送糊料的动力。 将所得浓缩物收集在通道的出口处。

    Sulfonating method
    5.
    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

    摘要: 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.

    摘要翻译: 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。

    Method for treating effluent gas from sulfonation process
    6.
    发明授权
    Method for treating effluent gas from sulfonation process 失效
    处理磺化工艺废气的方法

    公开(公告)号:US4251456A

    公开(公告)日:1981-02-17

    申请号:US24895

    申请日:1979-03-29

    申请人: Burton Brooks

    发明人: Burton Brooks

    CPC分类号: C07B45/02

    摘要: A relatively large amount of SO.sub.2 effluent gas from a sulfonation process is converted to SO.sub.3 and recycled back to the sulfonation process as part of the SO.sub.3 sulfonating agent. The rest of the SO.sub.3 used as the sulfonating agent is derived from a sulfur burner located downstream of the sulfonation operation and in the recycle path of the SO.sub.2 in the effluent gas. Hydrocarbons in the effluent gas are converted to CO.sub.2 and H.sub.2 O in the sulfur burner. The H.sub.2 O and SO.sub.3 are removed from the gas stream at an SO.sub.3 absorber which forms rich oleum from which the SO.sub.3 is subsequently removed for use in the sulfonation operation, leaving lean oleum which is used at the SO.sub.3 absorber to remove H.sub.2 O and SO.sub.3 from the gas stream. Gases leaving the SO.sub.3 absorber include some SO.sub.3 and are passed through an H.sub.2 SO.sub.4 absorber along with water and lean oleum to produce concentrated H.sub.2 SO.sub.4.

    摘要翻译: 来自磺化过程的相对大量的SO 2流出气体被转化为SO 3并作为SO 3磺化剂的一部分循环回到磺化过程。 用作磺化剂的SO 3的其余部分来自位于磺化操作下游的硫燃烧器和排出气体中SO 2的循环路径。 废气中的碳氢化合物在硫燃烧器中转化为CO2和H2O。 在形成富硫发烟硫酸的SO 3吸收剂中,从气流中除去H 2 O和SO 3,SO 3吸收剂随后从其中除去SO 3用于磺化操作,留下用于SO 3吸收剂的贫发烟硫酸从气体中除去H 2 O和SO 3 流。 离开SO3吸收器的气体包括一些SO 3,并与水和贫发烟硫酸一起通过H 2 SO 4吸收剂,产生浓H 2 SO 4。

    Process for quantitatively converting urea to ammonia on demand
    9.
    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

    IPC分类号: C01C108

    CPC分类号: B01D53/79 C01B32/50 C01C1/086

    摘要: 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.

    摘要翻译: 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。

    Intermediate product for use in producing a detergent bar
    10.
    发明授权
    Intermediate product for use in producing a detergent bar 失效
    用于生产洗涤剂条的中间产品

    公开(公告)号:US4587029A

    公开(公告)日:1986-05-06

    申请号:US672080

    申请日:1984-11-16

    申请人: Burton Brooks

    发明人: Burton Brooks

    摘要: Anhydrous fatty alcohol sulfuric acid or ethoxylated fatty alcohol sulfuric acid is neutralized with dry sodium carbonate powder in the presence of powdered sodium tripolyphosphate in a high shear mixer. The dry, powdered, neutralized reaction product is stored until required for use in the manufacture of a detergent bar whereupon the powder is mixed with liquid ingredients for the detergent bar and subjected to conventional manufacturing steps for a detergent bar. Other dry, powdered ingredients for the detergent bar may be introduced at the high shear mixer.

    摘要翻译: 无水脂肪醇硫酸或乙氧基化脂肪醇硫酸在高剪切混合器中,在粉末状三聚磷酸钠存在下,用干燥的碳酸钠粉末中和。 将干燥,粉末状中和的反应产物储存至需要用于制造洗涤剂条的条件下,将粉末与用于洗涤剂条的液体成分混合并进行洗涤剂条的常规制造步骤。 可以在高剪切混合器中引入用于洗涤剂条的其它干粉末成分。