Abstract: A hydrocarbon adsorbent that includes a zeolite with either a H-FER structure or a MOR structure in which the pore diameter has been adjusted by ion exchange. A propane adsorbent that includes a zeolite with a MFI structure having a Si/Al ratio of no more than 20. A hydrocarbon removal unit that includes a TSA pre-purification unit having a column packed with sequential layers of activated alumina, a NaX zeolite, and the hydrocarbon adsorbent. A method of reducing the hydrocarbon content within liquid oxygen inside a cryogenic air separation unit that includes purifying feed air with the above pre-purification unit.

Abstract: A hydrocarbon adsorbent that includes a zeolite with either a H-FER structure or a MOR structure in which the pore diameter has been adjusted by ion exchange. A propane adsorbent that includes a zeolite with a MFI structure. A hydrocarbon removal unit that includes a TSA pre-purification unit having a column packed with sequential layers of activated alumina, a NaX zeolite, and the hydrocarbon adsorbent. A method of reducing the hydrocarbon content within liquid oxygen inside a cryogenic air separation unit that includes purifying feed air with the above pre-purification unit.

Abstract: A hydrocarbon adsorbent that includes a zeolite with either a H-FER structure or a MOR structure in which the pore diameter has been adjusted by ion exchange. A propane adsorbent that includes a zeolite with a MFI structure. A hydrocarbon removal unit that includes a TSA pre-purification unit having a column packed with sequential layers of activated alumina, a NaX zeolite, and the hydrocarbon adsorbent. A method of reducing the hydrocarbon content within liquid oxygen inside a cryogenic air separation unit that includes purifying feed air with the above pre-purification unit.

Abstract: The adsorbent for carbon monoxide of the present invention is obtained by activating a Cu-ZSM5 type zeolite prepared as a catalyst for removal of NOX through heating at 450 to 600° C. in an inert gas atmosphere containing no moisture. The gas purification method of the present invention includes removing carbon monoxide as a trace amount of impurities contained in a gas by a temperature swing adsorption method, wherein the adsorbent for carbon monoxide according to claim 1 is used, and a regeneration operation of the adsorbent for carbon monoxide is carried out at 200 to 350° C.

Abstract: A hydrocarbon adsorbent that includes a zeolite with either a H-FER structure or a MOR structure in which the pore diameter has been adjusted by ion exchange. A propane adsorbent that includes a zeolite with a MFI structure. A hydrocarbon removal unit that includes a TSA pre-purification unit having a column packed with sequential layers of activated alumina, a NaX zeolite, and the hydrocarbon adsorbent. A method of reducing the hydrocarbon content within liquid oxygen inside a cryogenic air separation unit that includes purifying feed air with the above pre-purification unit.

Abstract: Component contained in a gas mixture can be separated based on a PSA method and recovered with high purities at the same time, the system is simple, the system cost is low, and the operation is easy and may be used for separating oxygen and nitrogen from air or for separating noble gases and nitrogen from a gas mixture containing noble gases and nitrogen, and obtaining each gas as a product.

Abstract: An object of the present invention to provide a method and a system for separating gas based on a PSA method, in which a plurality of components contained in a gas mixture can be separated and recovered with high purities at the same time, the system is simple, the system cost is low, and the operation is easy.