Method for reducing the chemical conversion of oxidizable or disproportionable compounds contacting carbonaceous chars
    4.
    发明授权
    Method for reducing the chemical conversion of oxidizable or disproportionable compounds contacting carbonaceous chars 失效
    减少与碳质炭相接触的可氧化或不相称化合物的化学转化的方法

    公开(公告)号:US06696030B1

    公开(公告)日:2004-02-24

    申请号:US09079021

    申请日:1998-05-14

    申请人: Richard A. Hayden

    发明人: Richard A. Hayden

    IPC分类号: B01D5338

    摘要: A method is provided for reducing the chemical conversion of oxidizable or disproportionable compounds contained in liquid or gaseous process media which contact carbonaceous chars. In this method the carbonaceous char contacting the oxidizable or disproportionable compounds is first treated with a non-nitrogen-containing Bronsted acid. The acid-treated char is then heated to temperatures greater than 750° C. In this manner the inherent catalytic reactivity of the carbon in the char is reduced effectively and largely irreversibly.

    摘要翻译: 提供了一种减少与碳质炭相接触的液体或气态过程介质中所含的可氧化或不相称的化合物的化学转化的方法。 在该方法中,首先用非含氮布朗斯台德酸处理与可氧化或不相称的化合物接触的碳质炭。 然后将经酸处理的焦炭加热至高于750℃的温度。以这种方式,炭中的碳的固有催化反应性有效降低并且在很大程度上是不可逆的。

    Method for the removal of non-metal and metalloid hydrides
    5.
    发明授权
    Method for the removal of non-metal and metalloid hydrides 失效
    去除非金属和准金属氢化物的方法

    公开(公告)号:US5674462A

    公开(公告)日:1997-10-07

    申请号:US279783

    申请日:1994-07-25

    摘要: A method is provided for the removal of metalloid and non-metal hydrides from gas or liquid media. The improvement is provided by the use of a high-temperature carbonaceous char derived from a carbonaceous feedstock which has been exposed to nitrogen-containing compounds at temperatures above 700.degree. C. In the preferred embodiment of the method, the high-temperature carbonaceous char is prepared by carbonizing and oxidizing a bituminous coal at temperatures less than 700.degree. C followed by exposure to urea, ammonia, or nitrogen-containing compound as the temperature is raised to above 700.degree. C.

    摘要翻译: 提供了用于从气体或液体介质去除准金属和非金属氢化物的方法。 通过使用在700℃以上暴露于含氮化合物的含碳原料的高温碳质炭提供了改进。在该方法的优选实施方案中,高温碳质炭是 通过在低于700℃的温度下对烟煤进行碳化和氧化,然后随着温度升至700℃,接触尿素,氨或含氮化合物而制备。

    Process for the catalytic oxidation of ferrous iron in liquid media
    6.
    发明授权
    Process for the catalytic oxidation of ferrous iron in liquid media 失效
    液体介质中亚铁的催化氧化工艺

    公开(公告)号:US5637232A

    公开(公告)日:1997-06-10

    申请号:US613848

    申请日:1996-03-11

    申请人: Richard A. Hayden

    发明人: Richard A. Hayden

    摘要: A improved process is provided for the catalytic oxidation of ferrous iron in liquid media in the presence of oxygen. The improvement is provided by the use of a carbonaceous char catalytically active for said oxidation which is prepared by the carbonization and oxidation of a bituminous coal or a bituminous material at temperatures below 700.degree. C. followed by exposure of the carbonized, oxidized char to a nitrogen-containing compound and, during or after said exposure, increasing the temperature to at least 700.degree. C.

    摘要翻译: 提供了一种在氧存在下在液体介质中催化氧化亚铁的方法。 通过使用对于所述氧化催化活性的碳质炭来提供改进,其通过在低于700℃的温度下将烟煤或沥青材料碳化和氧化制备,随后将碳化的氧化炭暴露于 含氮化合物,并且在所述暴露期间或之后,将温度升高至至少700℃

    Method for measuring the relative catalytic activity of carbonaceous
chars
    7.
    发明授权
    Method for measuring the relative catalytic activity of carbonaceous chars 失效
    测量碳质炭的相对催化活性的方法

    公开(公告)号:US5470748A

    公开(公告)日:1995-11-28

    申请号:US266137

    申请日:1994-06-27

    IPC分类号: G01N25/48 G01N31/10 G01N25/20

    CPC分类号: G01N25/4846

    摘要: A method is provided for evaluating the catalytic activity of carbonaceous chars via the decomposition of hydrogen peroxide in contact with such materials. In this method the rise in temperature occasioned by the decomposition of hydrogen peroxide under essentially adiabatic conditions is monitored as a function of time. By use of this method, carbonaceous chars having high catalytic activities may be rapidly and conveniently identified.

    摘要翻译: 提供了一种通过与这种材料接触的过氧化氢分解来评估碳质炭的催化活性的方法。 在这种方法中,监测基本上绝热条件下过氧化氢分解引起的温度升高是时间的函数。 通过使用该方法,可以快速方便地鉴定具有高催化活性的碳质炭。

    Process for the decomposition and removal of peroxides
    8.
    发明授权
    Process for the decomposition and removal of peroxides 失效
    过氧化物的分解和除去过程

    公开(公告)号:US5464605A

    公开(公告)日:1995-11-07

    申请号:US194826

    申请日:1994-02-14

    申请人: Richard A. Hayden

    发明人: Richard A. Hayden

    摘要: A process is provided for the removal of peroxides from gaseous or liquid media. The improvement is provided by the use of a carbonaceous char active for peroxide decomposition which is prepared by the carbonization and oxidation of a bituminous coal or bituminous coal-like material at temperatures below 700.degree. C. followed by exposure of the carbonized, oxidized char to a nitrogen-containing compound during the initial calcination and condensation of the carbon structure as the temperature is raised to above 700.degree. C.

    摘要翻译: 提供了从气体或液体介质中除去过氧化物的方法。 通过使用碳质炭活化剂用于过氧化物分解提供了改进,其通过在700℃以下的烟煤或烟煤样材料的碳化和氧化制备,随后将碳化的氧化炭暴露于 初始煅烧期间的含氮化合物和随着温度升高至700℃以上的碳结构的缩合。

    Catalytic carbon
    9.
    发明授权
    Catalytic carbon 失效
    催化碳

    公开(公告)号:US5356849A

    公开(公告)日:1994-10-18

    申请号:US7164

    申请日:1993-01-21

    摘要: Carbonaceous chars capable of catalytically decomposing aqueous hydrogen peroxide at higher rates at given char densities than other known catalytic chars are provided for. This improvement is provided by an increase in the catalytic activity at a given char density of the said catalytically-active carbonaceous char. The catalytically-active carbonaceous chars are useful for, but not limited to, the catalytic conversion of H.sub.2 S, SO.sub.x, NO.sub.x, peroxides, and/or chloramines in liquid and/or gaseous media.

    摘要翻译: 提供了能够以比其他已知的催化剂焦炭以更高的速率以更高的速率催化分解过氧化氢水的碳质炭。 通过在所述催化活性碳质炭的给定焦炭密度下催化活性的增加来提供这种改进。 催化活性碳质炭可用于但不限于在液体和/或气体介质中的H 2 S,SO x,NO x,过氧化物和/或氯胺的催化转化。