A multi-layer filter material for an interior air filter element of an air conditioning system of a vehicle may include an active layer having a plurality of non-impregnated activated carbon particles, an impregnation layer having a plurality of impregnated activated carbon particles, and an ion exchange layer having a plurality of ion exchanger particles. The active layer may be arranged between the ion exchange layer and the impregnation layer. The active layer may further include a first ash content and the impregnation layer may further include a second ash content. The first ash content in the active layer may be less than the second ash content in the impregnation layer.

An apparatus (10, 110, 210, 310) for the separation and recovery of CO.sub.2, from air, by a cyclic adsorption/desorption process using a loose particulate sorbent for gas adsorption. The apparatus has a plurality of adjacent, parallel, spaced-apart layers (24, 124, 224, 324), each having a stiff frame supporting a flexible, gas-permeable fabric enclosure for the sorbent. The gas inlet (14, 114, 214, 314) and outlet (18, 118, 216, 316) of the apparatus are on its axially opposite sides, and each layer (24, 124, 224, 324) extending axially within the apparatus. The recovered CO.sub.2 can be either supplied to an enclosed space, recycled to an enclosed space, from which the CO.sub.2 had been separated, or vented to the exterior of the latter enclosed space.

A polymer composite article having retained solids is disclosed. The polymer composite article includes a composite region having a first porous polymer comprising a plurality of pores and the retained solids. The composite region has at least a portion of the retained solids immobilized within some of the pores. In embodiments where the retained solids are solid sorbent materials, the article is configured to receive carbon dioxide through the first porous polymer that can be adsorbed onto the solid sorbent.

An energy-efficient, space-saving, low-cost, waste-heat-utilizing ventilating air conditioning apparatus uses a honeycomb rotor having a function of adsorbing or absorbing contaminants such as carbon dioxide and VOC gas. The honeycomb rotor is disposed in a rotor rotating device having at least a processing zone and a re-generation desorption zone. Air to be processed is passed through the processing zone to remove contaminants such as carbon dioxide to produce supply air. Water is directly sprayed or dropped into a heat exchanger provided at an entrance of the re-generation desorption zone to evaporate the generated water film by heating. The generated saturated steam is introduced for desorbing carbon dioxide and pollutants, and the stream is discharged the stream outdoors. The ventilating air conditioning apparatus can operate without the energy loss associated with ventilation.

A process for processing plastic waste comprising converting plastic waste to hydrocarbon liquid and a first C.sub.1-4 gas; contacting hydrocarbon liquid with a first hydroprocessing catalyst in hydroprocessing unit to yield a second C.sub.1-4 gas and a first hydrocarbon product comprising C.sub.5+ liquid hydrocarbons; introducing the first hydrocarbon product to a first separating unit to produce treated hydrocarbon stream comprising C.sub.5-8 hydrocarbons and a first heavies stream comprising C9+ hydrocarbons; contacting the first heavies stream with a second hydroprocessing catalyst in hydrodealkylating unit to yield a second hydrocarbon product comprising C.sub.5+ liquid hydrocarbons and a third C.sub.1-4 gas; conveying the second hydrocarbon product to the first separating unit; feeding treated hydrocarbon stream to steam cracker to produce steam cracker product; separating steam cracker product into olefin gas, saturated hydrocarbons gas, aromatics, and a second heavies stream; and conveying the second heavies stream to hydroprocessing unit.

An apparatus (10,110, 210, 310) for the separation and recovery of CO.sub.2, from air, by a cyclic adsorption/desorption process using a loose particulate sorbent for gas adsorption. The apparatus has a plurality of adjacent, parallel, spaced-apart layers (24,124, 224, 324), each having a stiff frame supporting a flexible, gas-permeable fabric enclosure for the sorbent. The gas inlet (14,114, 214, 314) and outlet (16,116, 216, 316) of the apparatus are on its axially opposite sides, and each layer (24,124, 224, 324) extending axially within the apparatus. The recovered CO.sub.2 can be either supplied to an enclosed space, recycled to an enclosed space, from which the CO.sub.2 had been separated, or vented to the exterior of the latter enclosed space.

A method for separating gaseous carbon dioxide from a mixture by cyclic adsorption/desorption using a unit containing an adsorber structure with sorbent material, wherein the method comprises the following steps: (a) contacting said mixture with the sorbent material to allow said gaseous carbon dioxide to adsorb under ambient conditions; (b) evacuating said unit to a pressure in the range of 20-400 mbar.sub.abs and heating said sorbent material to a temperature in the range of 80-130 C.; and (c) re-pressurization of the unit to ambient atmospheric pressure conditions and actively cooling the sorbent material to a temperature larger or equal to ambient temperature; wherein in step (b) steam is injected into the unit to flow-through and contact the sorbent material under saturated steam conditions, and wherein the molar ratio of steam that is injected to the gaseous carbon dioxide released is less than 20:1.

A method for reducing odor in waste products by adding an acidic ion exchange resin to an absorbent which is in contact with said waste products.

An absorption type carbon dioxide removal/concentration apparatus has a honeycomb rotor which holds an amine support solid absorbent. The honeycomb rotor is divided into at least a processing zone and a reproduction zone. An enthalpy (temperature and humidity) adjustment device is provided for the air for reproduction and/or the air to be processed. The apparatus can control the carbon dioxide absorbing performance and the concentration performance by passing processing and reproduction air through the corresponding zones. The absorption type carbon dioxide removal/concentration apparatus can remove or condense carbon dioxide, can secure high recovery efficiency and can prevent a thermal deterioration of the amine absorbent to extend the life-span of the apparatus.

A ventilating air conditioning apparatus has energy efficiency without energy loss associated with ventilation, has high space, saves space, and is low cost. The ventilating air conditioning apparatus has a honeycomb rotor having a function of adsorbing or absorbing contaminants such as carbon dioxide. The honeycomb rotor is disposed in a rotor rotating device having at least a process zone and a desorption regeneration zone. The processed air is passed through the process zone to remove contaminants such as carbon dioxide and the air is supplied. Saturated steam is introduced into the regeneration desorption zone to desorb contaminants such as carbon dioxide and is discharged to outdoors.