摘要:
The invention concerns high performance adsorbents based on activated carbon of high microporosity which are present in the form of discrete grains of activated carbon, preferably in spherical form, and which are characterized by the following parameters: a Gurvich total pore volume of at least 0.7 cm3/g, at least 70% of this total pore volume being formed by micropores having pore diameters of ≦20 Å, a measure of central tendency pore diameter of not more than 30 Å, and a BET surface area of at least 1500 m2/g. These high performance adsorbents are particularly useful for the adsorption of toxins, noxiants and odors, in particular from gas or to be more precise air streams, for purifying or cleaning gases, such as in particular air, for application in medicine or to be more precise pharmacy and as sorptive storage media for gases, in particular hydrogen.
摘要:
The invention relates to adsorptive structures based on agglomerates of adsorber particles, each comprising a plurality of granular, preferably speherical adsorber particles, and to the production of said agglomerates, and to the use thereof. The adsorber particles of the individual agglomerates are each connected to each other by means of a preferably thermoplastic organic polymer, particularly a binder material, or the adsorber paraticles of the individual agglomerates are bonded to and/or made to adhere to a preferably thermoplastic organic polymer, particularly a hinder material.
摘要:
The invention relates to an adsorptive molded part preferably formed as a monolithic or single-piece part, wherein the molded part is constructed of a plurality of adsorptive structures based on agglomerates of adsorber particles, and to a method for producing said molded part and to the use thereof.
摘要:
The invention relates to an adsorptive molded part preferably formed as a monolithic or single-piece part, wherein the molded part is constructed of a plurality of adsorptive structures based on agglomerates of adsorber particles, and to a method for producing said molded part and to the use thereof.
摘要:
The invention relates to an adsorptive system, in particular on the basis of an agglomerate, comprising a plurality of absorber particles, wherein the absorber particles are fixed, in particular adhered, to a binding agent carrier and are combined by means of the binding agent carrier to form the adsorptive system, in particular to form an agglomerate, and wherein the absorber particles have a first particulate adsorption material and a second particulate adsorption material which is different from the first particulate adsorption material.
摘要:
The invention concerns high-performance adsorbents based on activated carbon of high meso- and macroporosity which are present in the form of discrete grains of activated carbon, wherein at least 55% of the total pore volume of the high-performance adsorbents are formed by pores (i.e. meso- and macropores) having pore diameters of more than 20 Å, the high-performance adsorbents have a measure of central tendency pore diameter of more than 25 Å, and the high-performance adsorbents have a BET surface area of at least 1250 m2/g. These high-performance adsorbents are obtainable by a novel process comprising specific two-stage activation, and have, in addition to the aforementioned properties, an excellent abrasion and bursting resistance, so that they are useful for a multiplicity of different applications.
摘要:
The invention has as subject matter a rotary tube, especially for a rotary tube kiln for the production of carbon, with several mixing elements arranged in the inner space of the rotary tube for a thorough mixing of a charged material. The rotary tube comprises a transitional area from a smaller inside cross section to a larger inside cross section of the rotary tube. The mixing elements are formed in the transitional area and/or are arranged in such a manner that the charged material is transported during operation by the mixing elements toward the smaller inside cross section. The result is an excellent thorough axial mixing and blending of the charged material, which results in an increased homogeneity of the activated carbon produced.
摘要:
The invention concerns high performance adsorbents based on activated carbon of high microporosity which are present in the form of discrete grains of activated carbon, preferably in spherical form, and which are characterized by the following parameters: a Gurvich total pore volume of at least 0.7 cm3/g, at least 70% of this total pore volume being formed by micropores having pore diameters of ≦20 Å, a measure of central tendency pore diameter of not more than 30 Å, and a BET surface area of at least 1500 m2/g. These high performance adsorbents are particularly useful for the adsorption of toxins, noxiants and odors, in particular from gas or to be more precise air streams, for purifying or cleaning gases, such as in particular air, for application in medicine or to be more precise pharmacy and as sorptive storage media for gases, in particular hydrogen.
摘要:
The invention has as subject matter a rotary tube, especially for a rotary tube kiln for the production of carbon, with several mixing elements arranged in the inner space of the rotary tube for a thorough mixing of a charged material. The rotary tube comprises a transitional area from a smaller inside cross section to a larger inside cross section of the rotary tube. The mixing elements are formed in the transitional area and/or are arranged in such a manner that the charged material is transported during operation by the mixing elements toward the smaller inside cross section. The result is an excellent thorough axial mixing and blending of the charged material, which results in an increased homogeneity of the activated carbon produced.
摘要:
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.