Activated carbons from low-density agricultural waste
    1.
    发明授权
    Activated carbons from low-density agricultural waste 失效
    来自低密度农业废物的活性炭

    公开(公告)号:US06537947B1

    公开(公告)日:2003-03-25

    申请号:US08834051

    申请日:1997-04-11

    IPC分类号: C01B3110

    CPC分类号: C01B32/336

    摘要: Activated carbons derived from low-density lignocellulosic agricultural waste, and for use in absorption of metals, are prepared utilizing carbon dioxide or steam activation at 800° C. to 950° C. for 3 to 12 hours and subsequent oxidation with air at 260° C. to 400° C. for 3 to 6 hours. Granular carbons are formed by the inclusion of a preliminary two-step process involving the admixture of a binder selected from molasses, coal tar or wood tar to form pellets, briquettes or extrudates and converting them into a char under an inert atmosphere at 700° C. to 750° C. for 1 to 2 hours.

    摘要翻译: 由低密度木质纤维素农业废物衍生的活性炭和用于吸收金属的活性炭是利用二氧化碳或蒸气在800℃至950℃下活化3至12小时制备的,随后用260°空气氧化 C.至400℃3至6小时。 通过包括将选自糖蜜,煤焦油或木质焦油的粘合剂混合形成颗粒,团块或挤出物并在700℃的惰性气氛下将其转化为炭的预备两步法,形成颗粒碳。 至750℃,持续1至2小时。

    Method for producing activated carbon from carbon black
    2.
    发明授权
    Method for producing activated carbon from carbon black 失效
    炭黑生产活性炭的方法

    公开(公告)号:US06337302B1

    公开(公告)日:2002-01-08

    申请号:US09580120

    申请日:2000-05-30

    IPC分类号: C01B3110

    CPC分类号: C01B32/336 C01B32/324

    摘要: Purified carbon black carried by a screw conveyer, while being subject to preheating treatment, is transported to a microwave heating zone where it is heated to a temperature between 250° C. and 400° C. and subsequently, it is sent into a flow-type steam activation furnace there under the passage of steam and at a temperature inside the furnace maintained at 700° C. to 900° C. the carbon black is heated and activated to form a powdery activated carbon. This novel method for the production of activated carbon with high added value from carbon black is a continuous process of high productivity especially suitable for carbon black recovered from the heating and splitting decomposition processes of waste tires, waste plastics and the like. It is also suitable for carbon black as an industrial solid waste discharged from combustion electric power plant or from any industrial furnace that makes use of heavy oil, coal or natural gas for fuel; therefore the invention is a success not only with regard to recovery of resources but also regarding to environmental issues such as waste disposal and pollution.

    摘要翻译: 由螺旋输送机承载的纯化炭黑在进行预热处理的同时被运送到微波加热区,在此加热至250℃至400℃之间的温度, 在蒸汽通过下,在炉内保持700℃至900℃的温度下,将炭黑加热并活化以形成粉状活性炭。 用于从炭黑生产高附加值的活性炭的这种新方法是高生产率的连续方法,特别适用于从废轮胎,废塑料等的加热和分解分解过程中回收的炭黑。 也适用于从燃煤电厂或使用重油,煤或天然气用于燃料的任何工业炉排出的工业固体废物中的炭黑; 因此,本发明不仅在资源回收方面取得成功,而且还涉及诸如废物处理和污染等环境问题。

    Porous carbonaceous material, manufacturing method therefor and use thereof
    3.
    发明授权
    Porous carbonaceous material, manufacturing method therefor and use thereof 失效
    多孔碳质材料及其制造方法及其用途

    公开(公告)号:US06475461B1

    公开(公告)日:2002-11-05

    申请号:US08737806

    申请日:1996-11-27

    IPC分类号: C01B3110

    摘要: A halogen treatment is conducted comprising: a halogenation step wherein a halogenation heat treatment for preparing a halogenated carbonized charcoal is conducted in which the carbonized charcoal is brought into contact with halogen; and a dehalogenation step wherein a dehalogenation treatment is conducted in which a part of or all halogen atoms in the halogenated carbonized charcoal are eliminated. A porous carbonaceous material is obtained at a high yield, and the amounts of nitrogen, oxygen, carbon dioxide, and methane adsorbed by this porous carbonaceous material are large. When this porous carbonaceous material is used as an electrical double layer capacitor carbon, the electrostatic capacity is increased compared to conventional carbonaceous materials. Consequently, a carbonaceous material is obtained which has micopores and/or sub-micropores which are suitable for the adsorption of small molecules such as nitrogen, and for storage of electrochemical energy.

    摘要翻译: 进行卤素处理,包括:卤化步骤,其中进行用于制备卤化碳化炭的卤化热处理,其中碳化炭与卤素接触; 和脱卤步骤,其中进行脱卤处理,其中卤代碳化炭中的一部分或全部卤素原子被除去。 以高产率获得多孔碳质材料,并且由该多孔碳质材料吸附的氮,氧,二氧化碳和甲烷的量大。 当这种多孔碳质材料用作电双层电容器碳时,与常规碳质材料相比,静电容量增加。 因此,得到具有适于吸附小分子如氮气的微孔和/或亚微孔以及用于储存电化学能的碳质材料。

    Process for the production of shaped high-performance adsorbents
    4.
    发明授权
    Process for the production of shaped high-performance adsorbents 失效
    形成高性能吸附剂的方法

    公开(公告)号:US06376404B1

    公开(公告)日:2002-04-23

    申请号:US09526159

    申请日:2000-03-15

    IPC分类号: C01B3110

    摘要: The invention relates to the production of shaped high-performance adsorbents by steam activation in a rotary tunnel kiln operating in batches, in which spherically pre-formed materials are carefully pre-dried in a rotary tunnel dryer with 4-fold product turnover per kiln rotation and with a space/time ratio of from 1 to 2.5 m3/h using hot gas, then carbonised in an indirectly heated rotary tunnel kiln with 6-fold product turnover per kiln rotation and with a space/time ratio of from 5 to 10 m3/h in an inert-gas flow, and the carbonised semi-finished articles are activated in batches in an indirectly heated rotary tunnel kiln with 8-fold product turnover per kiln rotation and with a space/time ratio of from 1 to 5 m3/h with the addition of steam in an inert-gas flow. High-quality shaped high-performance adsorbents are obtained which are versatile and especially suitable for use in air separation, adsorptive cooling and as adsorbent components in textiles and synthetic fabrics.

    摘要翻译: 本发明涉及通过在分批操作的旋转隧道窑中通过蒸汽激活来生产成形的高性能吸附剂,其中球形预成型材料在旋转隧道式干燥器中仔细预干燥,每窑转速为4倍产品周转 使用热气体的空间/时间比为1至2.5m 3 / h,然后在间接加热的旋转隧道窑中碳化,每窑旋转6倍的产品周转率和5至10m 3的空间/时间比 / h,并且碳化的半成品在间歇加热的旋转隧道窑中分批活化,每窑旋转8倍的产品周转量,空间/时间比为1至5m 3 / h,在惰性气体流中加入蒸汽。获得高品质的高性能吸附剂,它们是通用型的,特别适用于空气分离,吸附冷却和作为纺织品和合成织物中的吸附剂组分。