The invention relates to a heat exchanger, particularly for cooling a fluid, comprising a plurality of tubes through which a fluid can flow, an end face of each tube terminating in a collector chamber, said collector chambers being fluidically interconnected by means of the tubes and at least one of said tubes comprising at least one wall section formed from a selectively-permeable membrane. The invention also relates to a tube for a heat exchanger.

A system and method are provided for extracting compounds from raw materials packed into an extraction column. The system may include a flowing solvent source connected to an extraction column to provide a flow of solvent for extracting the raw materials. The system may also include an electrodeionizer to separate positive ions and negative ions within the flowing solvent to create an imbalance of ions and transform the solvent to a deionized solvent. In further embodiments, the extraction column includes a solvent surface layer in contact with a bed of raw materials, such that the hydraulic pressure applied within the extraction column results in the formation of catalyzing energy to generate a self-perpetuating energy cycle to extract the raw materials.

Provided is a temperature-based dialysate regeneration device for regulating a temperature of dialysate discharged from a hemodialyzer to remove uremic toxins and waste therefrom, the temperature-based dialysate regeneration device including: a Joule-Thomson refrigerator, including a compressor, condenser, expander and evaporator, an adsorbent column, and a dialysate heat exchanger in which heat transfer occurs between dialysates. The refrigerant used for the JT refrigerator may be a mixture of two or more refrigerants to enhance the heat transfer generated by the latent heat in the evaporator and the condenser.

An apparatus and method are provided for extraction compounds from raw materials. The control and manipulation of heat formed and contained within the extraction vessel or column may be vital in obtaining a certain flavor profile or intensity of the effluent extracted from the raw materials. As such, the solvent entering the apparatus to extract the raw materials may be heated to a specified temperature range with the aid of energy already formed within the extraction column. The apparatus to extract the raw materials may include a body comprising a pressure vessel capable of withstanding high temperatures and pressures. Additionally, a flow of pressurized solvent may enter the base of the extraction column, where the flow of pressurized solvent has a select temperature such that the temperature may be manipulated to obtain a distinct flavor profile of the effluent extracted from the raw materials.

Embodiments of the present disclosure include a matrix of raw materials, also referred to as a poly-grain grind matrix. In some embodiments, the matrix of raw materials may form an interlocking network of varied particle grind sizes that allows the particles to nest and interlock with one another when packed into an extraction vessel, so that most, but not all of the interstitial spacing within the matrix of raw materials is closed. Additionally, the varied particle sizes may be selected by pre-determined weight ranges and size classifications so that the particle grind sizes achieve the desired consistency uniformity. This may allow the network of particles to act as its own best filtering agent during the extraction process. Moreover, the nesting and interlocking network of the particles within the matrix of raw materials may allow the particles to be effectively packed within the extraction column, thus allowing for an efficient and high quality extraction to be performed consistently each and every time.

A blood processing apparatus may include a heat exchanger and a gas exchanger. At least one of the heat exchanger and the gas exchanger may be configured to impart a radial component to blow flow through the heat exchanger and/or gas exchanger. The heat exchanger may be configured to cause blood flow to follow a spiral flow path.

A corrosion-resistant cover system, having a corrosion-resistant cover structured and configured to be arrangeable around an object having one or more metallic surfaces that are susceptible to corrosion. The corrosion-resistant cover is operable to provide increased corrosion resistance to the object by preventing contact between the one or more metallic surfaces and ambient conditions exterior to the corrosion-resistant cover.

A chemical reactor for use in a chemical process wherein a reactant and/or a target product is prone to produce undesirable byproducts through secondary reactions. The reactor is configured with a first flow passage for passing a flow of an overly reactive reactant; a permeable first wall for controlled flow of the overly reactive reactant into a second flow passage providing a flow of a second reactant; a permeable second wall having a catalyst supported on an inner surface thereof for catalyzing reaction of the reactants flowing in the second flow passage; the permeable second wall passing through a flow containing the target product; and a non-permeable third wall defining a third flow passage for exiting the product mixture. The reactor can be employed in selective oxidation, oxidative dehydrogenation, and alkylation processes to reduce the formation of byproducts.

A system and method are provided for extracting compounds from raw materials packed into an extraction column. The system may include a flowing solvent source connected to an extraction column to provide a flow of solvent for extracting the raw materials. The system may also include an electrodeionizer to separate positive ions and negative ions within the flowing solvent to create an imbalance of ions and transform the solvent to a deionized solvent. In further embodiments, the extraction column includes a solvent surface layer in contact with a bed of raw materials, such that the hydraulic pressure applied within the extraction column results in the formation of catalyzing energy to generate a self-perpetuating energy cycle to extract the raw materials.

Embodiments of the present disclosure include a matrix of raw materials, also referred to as a poly-grain grind matrix. In some embodiments, the matrix of raw materials may form an interlocking network of varied particle grind sizes that allows the particles to nest and interlock with one another when packed into an extraction vessel, so that most, but not all of the interstitial spacing within the matrix of raw materials is closed. Additionally, the varied particle sizes may be selected by pre-determined weight ranges and size classifications so that the particle grind sizes achieve the desired consistency uniformity. This may allow the network of particles to act as its own best filtering agent during the extraction process. Moreover, the nesting and interlocking network of the particles within the matrix of raw materials may allow the particles to be effectively packed within the extraction column, thus allowing for an efficient and high quality extraction to be performed consistently each and every time.