Abstract: Systems and methods for modular and adaptable carbon dioxide (CO2) capture, separation, and storage in a variety of disparate site locations are provided. The systems and methods include utilizing a plurality of transportable, mass-producible, and stackable CO2 capture modules locally arranged in a cluster serviced by modular or locally fixed utilities modules that are in turn serviced by centralized plant services facilities, which may be dedicated to the CO2 capture system or may alternatively be shared with other co-located operations. The CO2 capture modules comprise a plurality of sorbent reactors, each comprising removable sorbent cartridges which may be easily exchanged for maintenance or upgrade purposes. The CO2 sorbent reactors are alternatively operated in adsorption and desorption modes and synchronized with each other within the sorbent module and the corresponding cluster to achieve continuous operation.

Abstract: A method of making a composite material for dehydration of gases includes the steps of grinding date palm wood fibers to produce a fiber powder, immersing the fiber powder in an alkali solution, filtering fiber powder from the alkali solution to obtain treated fiber powder, drying the treated fiber powder, mixing the dried treated fiber powder with melted polylactic acid to form a composite material, extruding the composite material, and molding and pressing the extruded composite material. The resultant composite material may then be used to dehydrate gas by contacting the gas with the composite material such that water from the gas is adsorbed onto the surface of the composite material.

Abstract: A sorbent product, including from about 1 wt % to about 99 wt %, based on the total weight of the sorbent product, of at least one base sorbent material; and from about 1 wt % to about 99 wt %, based on the total weight of the sorbent product, of at least one binder. The sorbent product may further include at least from about 0 wt % to about 99% wt %, based on the total weight of the sorbent product, of at least one additional additive. Methods for making same and methods and systems for controlling multiple pollutants are also included.

Abstract: Disclosed herein is a gas capture system that includes a gas inlet arranged to receive a gas flow into the system; a gas outlet arranged to provide a gas flow out of the system; a gas capture region for mass transfer between a gas and a sorbent of the gas; and a sorbent regeneration region for regenerating the sorbent by heating the sorbent so that the sorbent releases a gas.

Abstract: Air cleaning apparatus includes: a tank; a detergent inlet into the tank; a water inlet into the tank; an air inlet into the tank; at least one sparger in fluid communication with the air inlet; a vacuum pump; an air outlet in fluid communication with the vacuum pump; and at least one valve between the air outlet and the vacuum pump and configured to control flow of fluids through the air outlet. The apparatus is configured to conduct a method to pull polluted external air into the tank through the air inlet to the at least one sparger, sparge bubbles of the polluted air from the at least one sparger into a mixture of the water and the nonfoaming detergent in the tank, remove pollutants from the air as it rises through the mixture, extract clean air from the mixture into a cavity in the tank above the mixture and extract the clean air from the cavity through the air outlet to an external environment with the vacuum pump.

Abstract: A device for drying compressed gas, having an inlet for compressed gas to be dried and an outlet for dried compressed gas. The device includes at least two vessels, a regenerable drying agent and a controllable valve system. By controlling the valve system, the vessels are each in turn successively regenerated. The device is provided with a regeneration conduit splitting off a portion of the dried compressed gas as a regeneration gas and feeding it into the at least one vessel that is being regenerated. The regeneration conduit at least partly extends through an opening in the vessels such that the regeneration gas can be split off from the vessel that dries the compressed gas. A heater is provided in the regeneration conduit for heating the regeneration gas before the regeneration gas is fed through the drying agent into the vessel that is being regenerated.

Abstract: An atmospheric water harvesting generator includes an adsorbent with a nanopore structure and a moisture-condensing substrate with an amphiphilic structure such that water can be efficiently harvested from the atmosphere even in a dry climate, the generator is easy to operate with little power, and the flow of air can be controlled with a simple control to efficiently and continuously harvest water.

Abstract: The present disclosure relates to a purge system for a vapor compression system, where the purge system includes an emission canister configured to receive a gas flow. The gas flow includes a mixture of non-condensable gases and refrigerant of the vapor compression system. An adsorbent material is disposed within the emission canister and configured to adsorb the refrigerant and enable the non-condensable gases to flow toward an exhaust of the emission canister, where the adsorbent material is a silica gel.

Abstract: An exhaust gas processing system including a process chamber in which an exhaust gas is produced; an exhaust gas measurer receiving the exhaust gas and measuring a concentration of the exhaust gas; a solid producing gas processor receiving the exhaust gas and removing a solid producing gas contained in the exhaust gas; a gas supply supplying dilution and cooling gases to the solid producing gas processor; a processed gas measurer receiving, as a processed gas, the exhaust gas free of the solid producing gas and measuring a temperature of the processed gas and ingredients of the processed gas; and a controller receiving results of measurement of the concentration of the exhaust gas from the exhaust gas measurer and results of measurement of the temperature of the processed gas and the ingredients of the processed gas from the exhaust gas measurer and controlling the gas supply based on the measurement results.

Abstract: A system and method for passive collection of atmospheric carbon dioxide is disclosed. The system includes a harvest chamber having a first opening and a sorbent regeneration system. The system also includes a capture body coupled to and movable by a support structure. The capture body includes a sorbent material and is movable by the support structure to be in a collection configuration wherein at least a portion of the capture body is in contact with a natural airflow outside the harvest chamber such that atmospheric carbon dioxide is captured by the sorbent material, and a release configuration wherein at least a portion of the capture body holding captured carbon dioxide is operated upon by the regeneration system inside the harvest chamber such that captured carbon dioxide is released to form an enriched gas.

Abstract: A reusable, air cleaning device includes: (a) a top frame having a top perimeter edge that encloses a top area, (b) a plurality of top screens, each with a top bounding edge and configured to cover the top area, (c) a bottom frame having a bottom perimeter edge that encloses a bottom area, (d) a plurality of bottom screens, each with a bottom bounding edge and configured to cover the bottom area, (e) an attachment device configured to temporarily hold the frames together so that the top frame lies above the bottom frame to create a confined space between the screens, (f) a locking device configured to temporarily lock the frames together, (g) activated carbon granules that are distributed on the bottom screen, and wherein the plurality of screens are configured to have a combination of sizes that prevent the activated carbon granules from passing through the screens.

Abstract: Method and apparatus for condensing a majority of the solvent in a process gas stream at low temperatures, e.g., below the freezing point of water, ca. ?5° C. The gas stream exiting the condenser step may be further processed in one or more emission control devices, such as a single or multi-step series of concentrator devices, such as zeolite concentrator devices. One or more emission control operations can be carried out downstream of the single or multi-step concentrators. The aforementioned condensing process enables the one or more concentrators to operate in a favorable temperature range for removal of 99% or more of VOC, thereby meeting or exceeding strict environmental regulations.

Abstract: The process of the present invention provides high recovery and low capital cost giving it an economic advantage over previously known purification processes. The present process has particular applicability to the purification of synthesis gases comprising at least hydrogen (H2), carbon monoxide (CO), methane (CH4), CO2, and H2O to obtain a gas stream including at least H2, CO, and CH4, that is substantially free of H2O and CO2. The process also has applicability to the purification of natural gases inclusive of at least CH4, N2, CO2, and H2O to produce a gas stream including at least CH4 and N2, but which is substantially free of H2O and CO2.

Abstract: The current disclosure provides systems and methods for multiple beds undergoing a feed step at the same time with the same feed flow rate and multiple beds undergoing a light reflux step at the same time with the same light reflux flow rate to process a gas stream in a multi-bed, multi-unit vacuum swing adsorption (VSA) process using reasonably sized beds.

Abstract: A hybrid nitrogen gas generation system includes a membrane nitrogen gas generator and a pressure swing absorption nitrogen generator. A gas comprising nitrogen is purified to a first nitrogen purity using one of the membrane nitrogen gas generator and the pressure swing absorption nitrogen generator. The gas is either bypassed around the other of the membrane nitrogen gas generator and the pressure swing absorption nitrogen generator to provide the gas having the first nitrogen purity or the gas is purified to a second nitrogen purity using the other of the membrane nitrogen gas generator and the pressure swing absorption nitrogen generator.

Abstract: A drying and filtering device. The filtering and drying device comprises a bearing base body, an adsorption drying tube and a refrigerating tube. The bearing base body comprises an upper adsorption airflow cavity and an upper refrigerating airflow cavity located at an upper end of the bearing base body, and a lower adsorption airflow cavity and a lower refrigerating airflow cavity located at a lower end of the bearing base body. The adsorption drying tube is vertically arranged between the upper end and the lower end, and communicates with the upper adsorption airflow cavity and the lower adsorption airflow cavity. The refrigerating tube is vertically arranged between the upper end and the lower end, and communicates with the upper refrigerating airflow cavity and the lower refrigerating airflow cavity. The bearing base body further comprises an air intake guide cavity, and communicates with the refrigerating tube and the adsorption drying tube.

Abstract: Methods, compositions, systems and devices are provided in which zeolite particles, preferably of silicon and aluminum, are used as desiccants. In embodiments a plurality of zeolite particles are provided that are less than 1 mm in size. The particles may be arrayed such that at least some of the plurality of particles are spaced apart from each other and may be arrayed in rows and columns. Embodiments provide the particles are useful or removing water under ambient conditions and in removing water from air or material and in an embodiment removing water from plant material, such as harvested crop material, or where the dried air is contacted with plant material. Microwave radiation may be used to efficiently and in a cost effective manner dehydrate the rehydrated particles.

Abstract: A method and system for manufacturing and using a self-supporting structure in processing unit for adsorption or catalytic processes. The self-supporting structure has greater than 50% by weight of the active material in the self-supporting structure to provide an open-celled structure providing access to the active material. The self-supporting structures, which may be disposed in a processing unit, may be used in swing adsorption processes and other processes to enhance the recovery of hydrocarbons.

Abstract: A porous aluminum-based metal-organic framework (MOF) comprises inorganic aluminum chains linked via carboxylate groups of 1H-pyrazole-3,5-dicarboxylate (HPDC) linkers, and of formula: [Al(OH)(C5H2O4N2)(H2O)].

Abstract: A multi-stage process to remove contaminant gases from raw methane streams is provided. The present technology is an innovative solution to recover and purify biogas by use of a process having at least two pressure swing adsorption stages. Taking advantage of the presence of carbon dioxide in the raw biogas streams, nitrogen and oxygen are bulky removed in the first stage, using selective adsorbents, and a nitrogen and oxygen-depleted intermediate stream is yielded to the second stage. The second stage employs an adsorbent or adsorbents to selectively remove carbon dioxide and trace amounts of remaining nitrogen and oxygen, thus producing a purer methane stream that meets pipeline and natural gas specifications.