摘要:
An adsorbent composition, which is comprised by both an active adsorbent component and an active thinner component, is disclosed. The active thinner component will range in weight from about 5 % to about 80 % of the composition. The adsorbent composition is useful in separating a gas component from a gas mixture such as in cyclic adsorption processes.
摘要:
A gas separation process comprising feeding a gaseous mixture comprising at least two components having different adsorption characteristics into an adsorption vessel containing at least one adsorbent material capable of preferentially adsorbing at least one of the gaseous components in the gaseous mixture and subjecting the gaseous mixture to non-cryogenic conditions which enable the preferentially adsorbable gaseous component in the gaseous mixture to adsorb onto the adsorbent material and separate from the non-adsorbed component in the gaseous mixture which pass through the adsorbent vessel wherein at least one adsorbent material in the adsorbent vessel comprises a composite particle having an inner core comprising a non-porous, non-adsorbent material and at least one outer layer comprising the adsorbent material. In another embodiment of the process of the present invention a hollow particulate adsorbent material is utilized.
摘要:
The present invention provides for methods and compositions for gas separation and purification utilizing a metallo-organic polymer adsorbent in processes for separating carbon dioxide, water, nitrogen oxides and hydrocarbons from gas streams. The metallo-organic polymer adsorbent composition has the formula:
[R(L) n ] m M n ,
wherein R represents an organic spacer selected from the group consisting of an organic cyclic or acyclic compound; L represents a ligation group substituted on the organic spacer selected from the group consisting of carboxylate group, -C(=O)O - ; dithiocarboxylate group, -C(=S)S - ; and β-diketonate group, -C(=O)C(R')=C(-O - )-, wherein R' = H, or an aliphatic or aromatic group; M represents a transition metal or a rare earth metal m is the oxidation state of the transition or rare earth metal; and n is the number of the ligation group substituted on the organic spacer.
摘要:
Adsorbent composites composed of microparticulate zeolites at least 90% of whose particles have a characteristic particle dimension not greater than about 0.6 micron and an macropore inert binder. The composites are useful for separating strongly adsorbed gas components from gas mixtures. Microparticulate type X zeolites composites are particularly useful for separating nitrogen or carbon dioxide from air.
摘要:
Chabazite, offretite, erionite, levyne, mordenite, gmelinite, zeolite A, zeolite T, EMC-2, ZSM-3, ZSM-18, ZK-5, zeolite L, and beta zeolite whose exchangeable cations are composed, on an equivalents basis, of 95 to 50% lithium ions, 4 to 50% of one or more of aluminium, cerium, lanthanum and mixed lanthanides and 0 to 15% of other ions are prepared by ion-exchanging the base zeolite with water-soluble trivalent ion salts and with water soluble lithium salts. The zeolites preferentially adsorb nitrogen from gas mixtures.
摘要:
Carbon dioxide is removed from gas streams comprised predominantly of gases that are less polar than carbon dioxide by passing the gas stream through a bed of type X zeolite having a silicon to aluminium atomic ratio not greater than about 1.15, thereby adsorbing the carbon dioxide from the gas stream. The process is particularly advantageous when applied to the removal of low levels of carbon dioxide from gas streams at temperatures above 20°C.
摘要:
A mechanism used in connection with determining a time resolved interaction between a target substance, for instance, an adsorbent and at least one agent, for instance, an adsorbate capable of interacting with the target substance. In accordance with the method the target substance and agent(s) are introduced into a sample vessel. At the same time, the target substance is oscillated within the sample vessel without changing the volume of the sample vessel. A concentration of one or more components associated with the time resolved interaction as a function of time is measured by measuring chamber pressure and simultaneously performing a mass spectroscopical analysis of chamber content at discrete time intervals. The target substance is oscillated by a mechanical movement which oscillates a sample holder configured to hold the target substance. The movement has a finger-like member, preferably formed by welded steel bellows and a curved member rotating within the finger-like member so that motion of the finger-like member does not change chamber volume and therefore effect the pressure measurements that are to be made in accordance with the method.
摘要:
A crystalline ceramic oxide of the general formula (1), (2), (3), (4), (5), (6), (7), (8), (9), or (10):A x B y O 3-δ ,A x A' x' B y B' y' O 3-δ , andA x A' x' A'' x'' B y B' y' B'' y'' O 3-δ ,A 2 BO 4-δ A 2 B 2 O 5-δ AO(ABO 3-δ ) n AM 2 Cu 3 O 7-δ Bi 4 V 2(1-x) Me 2x O 11-3x ,A'B'O 3 where B' is W or Mo;A 2 B 2 O 7-δ , and combinations thereof, wherein: A is a cation of atoms having atomic numbers ranging from 57-71, inclusive, a cation of yttrium, cations of Groups 1 and 2 atoms, and combination thereof; B is a cation of a d-block transition metal; A' is a cation of Na or Li; M is a metal cation selected from cations of Group 2 atoms; Me is a metal cation of Cu, Bi, and Co atoms; x ranges from 0.01 to 1.00; and δ ranges from 0.05 to 0.30 are useful as sorbents of oxygen and catalysts of the reaction between a hydrocarbon and oxygen to form carbon monoxide and hydrogen. The compounds (1) - (10) may also function as active supports for binary metal oxides to enhance the oxygen sorption/desorption capacity of the composites. One group of composite materials comprise components (A) and (B), wherein component (A) is selected from compounds of general formulas (1) through (10), inclusive, and combinations thereof, and component (B) comprises a metal selected from rhodium (Rh), platinum (Pt), palladium (Pd), nickel (Ni) and silver (Ag), and combinations and alloys of these metals.
摘要翻译:(1),(2),(3),(4),(5),(6),(7),(8),(9)或(10)的晶体陶瓷氧化物:AxByO 3 -A,AxA'x'ByB'y'O3-δ和AxA'x'A''x''ByB'y'B''y''O3-δ,A2BO4-δA2B2O5-δAO(ABO3-δ)nAM2Cu3O7 -δBi4 V 2(1-x)Me 2 xO 11-3x,A'B'O 3其中B'为W或Mo; A 2 B 2 O 7-δ及其组合,其中:A为原子数为57-71的原子 ,钇的阳离子,1族和2族原子的阳离子,以及它们的组合; B是d嵌段过渡金属的阳离子; A'是Na或Li的阳离子; M是选自第2族原子的阳离子的金属阳离子; Me是Cu,Bi和Co原子的金属阳离子; x在0.01至1.00的范围内; 和δ的范围为0.05至0.30可用作氧的吸收剂和烃与氧之间反应形成一氧化碳和氢的催化剂。 化合物(1) - (10)也可以用作二元金属氧化物的活性载体以增强复合材料的氧气吸附/解吸能力。 一组复合材料包含组分(A)和(B),其中组分(A)选自通式(1)至(10)的化合物及其组合,并且组分(B) 从铑(Rh),铂(Pt),钯(Pd),镍(Ni)和银(Ag)以及这些金属的组合和合金。