Sol-gel derived sorbents
    1.
    发明授权
    Sol-gel derived sorbents 失效
    溶胶凝胶衍生的吸附剂

    公开(公告)号:US06645908B1

    公开(公告)日:2003-11-11

    申请号:US09685223

    申请日:2000-10-10

    CPC classification number: B01J20/28047 B01J20/10 B01J20/26

    Abstract: Described is a method for producing copolymerized sol-gel derived sorbent particles for the production of copolymerized sol-gel derived sorbent material. The method for producing copolymerized sol-gel derived sorbent particles comprises adding a basic solution to an aqueous metal alkoxide mixture for a pH≦8 to hydrolyze the metal alkoxides. Then, allowing the mixture to react at room temperature for a precalculated period of time for the mixture to undergo an increased in viscosity to obtain a desired pore size and surface area. The copolymerized mixture is then added to an immiscible, nonpolar solvent that has been heated to a sufficient temperature wherein the copolymerized mixture forms a solid upon the addition. The solid is recovered from the mixture, and is ready for use in an active sampling trap or activated for use in a passive sampling trap.

    Abstract translation: 描述了用于生产共聚溶胶 - 凝胶衍生的吸附剂材料的共聚溶胶 - 凝胶衍生的吸附剂颗粒的方法。 制备共聚的溶胶 - 凝胶衍生的吸附剂颗粒的方法包括将碱性溶液加入到金属醇盐水溶液中以使pH <= 8水解金属醇盐。 然后,使混合物在室温下反应预先计算的时间段,使混合物经历粘度增加以获得所需的孔径和表面积。 然后将共聚的混合物加入已加热到足够温度的不混溶的非极性溶剂中,其中共聚合的混合物在加入时形成固体。 固体从混合物中回收,并准备用于主动取样阱或激活用于被动采样阱。

    Adsorbent for the removal of trace quantities from a hydrocarbon stream and process for its use
    2.
    发明授权
    Adsorbent for the removal of trace quantities from a hydrocarbon stream and process for its use 有权
    用于从烃流中除去痕量的吸附剂及其使用方法

    公开(公告)号:US06383981B1

    公开(公告)日:2002-05-07

    申请号:US09357735

    申请日:1999-07-20

    Abstract: An adsorbent product for the adsorption of trace elements of sulfur, arsenic, mercury, compounds which contain these elements or metal hydrides from a hydrocarbon gas stream, preferably an olefinic or paraffinic stream, wherein the adsorbent product is iron oxide and manganese oxide placed on a support material, preferably aluminum oxide. Also disclosed is a process for the use of this adsorbent product for the removal of trace elements of arsenic, mercury and sulfur or compounds containing those elements or metal hydrides from a hydrocarbon gas stream, preferably an olefinic or paraffinic gas stream.

    Abstract translation: 用于从烃气流,优选烯烃或链烷烃流中吸附硫,砷,汞,含有这些元素或金属氢化物的化合物的微量元素的吸附剂产品,其中吸附剂产物是氧化铁和氧化锰置于 支撑材料,优选氧化铝。 还公开了使用该吸附剂产品从烃气流,优选烯烃或链烷烃气流中去除砷,汞和硫的痕量元素或含有这些元素或金属氢化物的化合物的方法。

    Composite material comprising activated carbon and expanded graphite
    4.
    发明授权
    Composite material comprising activated carbon and expanded graphite 有权
    复合材料包括活性炭和膨胀石墨

    公开(公告)号:US06790390B2

    公开(公告)日:2004-09-14

    申请号:US10182134

    申请日:2002-07-26

    Abstract: The invention concerns a composite material comprising activated carbon and expanded graphite. The material is a block wherein the activated carbon is homogeneously and uniformly distributed in the form of microporous particles. The texture of said particles is characterised by a microporous volume W0 ranging between 0.1 cm3g−1 and 1.5 cm3g−1 and a mean pore dimension L0 ranging between 2 Å and 30 Å, the activated carbon particles have substantially the same texture wherever they are located in the composite material, the thermal conductivity levels of the material range between 1 and 100 Wm−1K−1. Said material is obtained by heat treatment of a mixture of expanded graphite and an activated carbon precursor in the presence of an activating agent at a temperature and for a time interval sufficient to obtain a wear rate of the activated carbon precursor ranging between 5 and 70% by mass.

    Abstract translation: 本发明涉及包含活性炭和膨胀石墨的复合材料。 该材料是其中活性炭以微孔颗粒的形式均匀均匀分布的嵌段。 所述颗粒的质地的特征在于微孔体积W0在0.1cm 3和1.5cm 3 -1之间,平均孔尺寸L 0在2和30之间, 活性炭颗粒在它们位于复合材料中的任何地方具有基本上相同的结构,材料的热导率范围在1至100 Wm -1 K -1之间。 所述材料通过在活化剂存在下在膨胀石墨和活性炭前体的混合物的温度和时间间隔内热处理而获得,所述温度和时间间隔足以获得活性炭前体的磨损速率为5-70% 的质量。

    Enhanced materials for treatment of contamination
    9.
    发明授权
    Enhanced materials for treatment of contamination 失效
    用于处理污染物的增强材料

    公开(公告)号:US06380129B1

    公开(公告)日:2002-04-30

    申请号:US09432863

    申请日:1999-11-02

    Abstract: An enhanced material formed from a carrier material having a high porosity. The carrier material is treated with a mixture of hydrocarbons to increase the adherence of the carrier material particles to one another to minimize atmospheric contamination of the carrier materials in use. The material has particular applicable to environments where such contamination would create problems, such as food processing and preparation environments, computer operations, electronic component manufacturing and other environments. The material meets the requirements of FDA regulations for Indirect Food Contact.

    Abstract translation: 由具有高孔隙率的载体材料形成的增强材料。 用烃的混合物处理载体材料以增加载体材料颗粒彼此粘附,以最小化使用中载体材料的大气污染。 该材料特别适用于这种污染会产生问题的环境,例如食品加工和制备环境,计算机操作,电子部件制造和其他环境。 该材料符合FDA对间接食品接触法规的要求。

    Process for the production of shaped activated carbon
    10.
    发明授权
    Process for the production of shaped activated carbon 失效
    成型活性炭生产工艺

    公开(公告)号:US06316378B1

    公开(公告)日:2001-11-13

    申请号:US09526297

    申请日:2000-03-15

    CPC classification number: C01B32/336 C01B32/39

    Abstract: The invention relates to a process for the production of shaped activated carbon by steam activation in an continuously operating rotary tunnel kiln, by continuously drying spherically preformed raw materials in a rotary tunnel dryer with 6-fold product turnover per kiln rotation, with a product temperature of from 250 to 300° C. in the 50 to 80% kiln length range and a residence time of from 30 to 6O minutes by means of a hot gas in countercurrent, then, in an indirectly heated rotary tunnel kiln, which is subdivided into a carbonising zone and activating zone, continuously carbonising the material with 8-fold product turnover per kiln rotation and with a product temperature profile in the carbonising zone of from 850 to 900° C. and a residence time of from 120 to 180 minutes, and activating the material with a product temperature profile in the activating zone of from 910 to 920° C. and a residence time of from 480 to 720 minutes with the addition of steam in an inert-gas flow.

    Abstract translation: 本发明涉及通过在连续运转的旋转隧道窑中通过蒸汽活化来生产成形活性炭的方法,通过在具有每窑转动6倍的产品周转量的旋转隧道式干燥器中连续干燥球形预制的原料,产品温度 在50〜80℃的窑长范围内,通过逆流的热气体停留时间为30〜60分钟,然后在间接加热的旋转隧道窑中分为 碳化区和活化区,在850至900℃的碳化区域中以8盎司产品周转量和每窑旋转产品周转量和产物温度曲线连续地碳化材料,停留时间为120至180分钟,以及 在惰性气体流中加入蒸汽,使活化区域的产物温度分布为910〜920℃,停留时间为480〜720分钟。

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