The present invention relates to novel lignin-derived compounds and compositions comprising the same and their use as redox flow battery electrolytes. The invention further provides a method for preparing said compounds and compositions as well as a redox flow battery comprising said compounds and compositions. Additionally, an assembly for carrying out the inventive method is provided.

The present invention relates to an adsorption filter including activated carbon and a fibrillated fibrous binder, in which the activated carbon has a 0% particle diameter (D0) of 10 μm or more in a volume-based cumulative particle-size distribution and has a 50% particle diameter (D50) of 90 to 200 μm in the volume-based cumulative particle-size distribution; the fibrillated fibrous binder has a CSF value of 10 to 150 mL; and the adsorption filter includes 4 to 8 parts by mass of the fibrillated fibrous binder relative to 100 parts by mass of the activated carbon.

In some embodiments, an indoor air cleaning apparatus and a method for removing at least a portion of at least one type of gas from an indoor airflow are disclosed. The apparatus may comprise a cabinet; at least one sorbent bank comprising at least one cartridge; a fan assembly comprising at least one housing including at least one housing inlet and at least one housing outlet, at least one motor and at least one impeller; and a heating element configured to operate in at least one of two modes: an active mode and an inactive mode; and a controller configured to operate in at least two modes: an adsorption mode and a regeneration mode.

An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, an effective butane working capacity (BWC) of less than 3 g/dL, and a g-total BWC of between 2 grams and 6 grams. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr butane loading step.

Disclosed herein is an air cleaner which performs dust collection and sterilization as well as deodorization while having a small size enough to be fitted into a vehicle cup holder for its use, and has a strong and easy maintenance structure. The air cleaner includes a photocatalytic UV LED (57) installed on an UV LED substrate (55), and a photocatalytic filter installed on a surface facing the photocatalytic UV LED while being spaced apart from the UV LED substrate. The photocatalytic filter has a structure in which a photocatalytic material is coated on a base in which a plurality of cells (83) defining an air flow path in a direction toward the photocatalytic UV LED are arranged in parallel adjacent to each other.

The present invention relates to ultrafiltration. In particular, the present invention provides nanoporous membranes having pores for generating in vitro and in vivo ultrafiltrate, devices and bioartificial organs utilizing such nanoporous membranes, and related methods (e.g., diagnostic methods, research methods, drug screening). The present invention further provides nanoporous membranes configured to avoid protein fouling with, for example, a polyethylene glycol surface coating.

An adsorbent separates methanol and other alcohols from gas and liquid oxygenates and hydrocarbon streams with a low silica faujasite (LSX) in a mono-, bi, or tri-cation alkali and/or alkaline-earth metal forms. The LSX has silicon to aluminum ratio from about 0.9 to about 1.15 and an ion exchange degree for each alkali or alkaline-earth metal in the range of about 10 to about 99.9% equiv. The gas streams for treatment include natural gas, individual hydrocarbons, or vaporized alkyl esters of carboxylic acids, or methyl tert-alkyl ethers and their mixtures with hydrocarbons. The liquid streams include liquefied natural gas (LNG), liquefied petroleum gas (LPG), natural gas liquid (NGL), individual hydrocarbons C.sub.3-C.sub.5, and monomers, alkyl esters of carboxylic acids including methyl acetate, methyl, ethyl, butyl acrylates and methacrylate, methyl tert-alkyl ethers including methyl tert-butyl ether (MTBE) and methyl tert-amyl ether (TAME). The adsorbent is especially suited for temperature swing or pressure swing adsorption processes.

The invention relates to the proppants and proppant substrates treated with active compounds that reduce the presence of contaminants in fluids, methods of using those materials, as well as methods of making those materials. The invention further provides that the contaminated fluids are associated with wells, including oil and gas wells.

The disclosure provides for the separation and combustion of at least one hydrocarbon, oxygenate, sulfur compound, and or nitrogen compound, from industrial gas or gasification derived syngas to generate steam. A gasification process and a gas fermentation process may be integrated using tail gas from the fermentation process for the flame to combust tar and other compounds from the syngas generated by a gasification process. Integration may be achieved by removing tar and other compounds from industrial gas or gasification derived syngas using an adsorbent and regenerating the adsorbent using tail gas from the gas fermentation process. Tail gas enriched with the desorbed tar and other compounds may be used to generate steam in a steam boiler and the steam may be used for a variety of purposes including power generation to power, for example, a compressor of the gas fermentation process.

A gas accumulation and combustion control device combining a sorption system, a ventilation system, a control system, and sensor system, with the sensor system configured to detect gas contaminants, transmit a gas detection signal to the control system, the control system configured to adjust the ventilation system based on the gas detection signal, the ventilation system configured to draw the contaminated air in from the atmosphere and lead it toward the sorption system, which in turn is configured to adsorb or absorb the gas contaminants.