An ultrasound crystallization device comprises a tubular crystallization reactor (102) for conducting process fluid containing substance to be crystallized, an ultrasound source (104) for radiating ultrasound to the tubular crystallization reactor, and a temperature-control structure (105) for controlling the temperature of the process fluid with the aid of temperature-control fluid. The tubular crystallization reactor is shaped to conduct the process fluid to flow around the ultrasound source, and the temperature-control structure comprises a flow-guide structure (106) for guiding at least a part of the temperature-control fluid to flow around the ultrasound source. The flow-guide structure improves the accuracy of the temperature control of the process fluid and also the ability of the temperature control to react to changes.

Band-pass filters for guiding or controlling crystal polymorphism in oil are provided. Band-pass filters convert a passive energy source to a spectral energy pattern tuned to be resonant with different types of molecular oscillations pertinent to oil. Tuned energy patterns convert problematic insoluble crystals to more thermodynamically stable and soluble crystals. Methods include use of the band-pass filter in crude oil recovery and design of band-pass filter parameters for optimal use on a particular oil recovery facility. Band-pass filters also lower the interfacial tension of oil when present with water, which are also provided, as are methods for enhanced recovery of oil from depleted oil fields.

Aspects of the disclosure relate to methods and compositions of altering a solution through the use of readily retrievable agents (e.g., a nanoparticle) having one or more functional groups configured to undergo a solvation interaction with a component of the solution. Compositions, systems, and methods for crystallizing organic and inorganic compounds from solutions using nanoparticles surface coated with functional groups that create a supersaturated state in the solution and reversal thereof. Compositions, systems, and methods for purifying water or active pharmaceutical ingredients. Compositions, systems, and methods for increasing the solubility of a solution and reversal of the same. Compositions, systems, and methods for decreasing the solubility of a crystallized compound and reversal of the same.

The present disclosure provides a system for refining long chain dicarboxylic acid, comprising: a first membrane filtration unit, for a first membrane filtration of a long chain dicarboxylic acid fermentation broth or a treated liquid therefrom; a first decolorization unit, for carrying out a first decolorization treatment to the filtrate obtained after the membrane filtration; a first acidification/crystallization unit, for carrying out a first acidification/crystallization of a filtrate obtained after the membrane filtration to give a solid-liquid mixture; a first separation unit, for a solid-liquid separation of the solid-liquid mixture; a drying unit, for drying the solid separated by the separation unit to give a first solid. By using the refining system according to the present disclosure, the purity of the obtained product is high, and the disadvantages such as poor quality of the product obtained by crystallization from a solvent and environment pollution caused by a solvent can be overcome.

A separation system for separating and purifying a target component, a method for separating and purifying a target component, and the use of a crossflow diafiltration unit for processing a target phase. The system includes an aqueous-two phase extraction unit for aqueous-two phase extraction of the fluid, a separation unit for separating a target phase, and a crossflow diafiltration unit.

Continuous extraction concentration and isolation units are constructed with at least one extraction chambers containing extractable material. Without disruption of total fluid flow in the unit: an extraction chamber completely depleted of extract can be refilled with fresh extractable material or can be replaced with an extraction chamber containing fresh extractable material. Extract are continuously separated from one or more solvents in expansion chambers and removed. All solvents can be retained within the unit. One or more compressors circulate the fluids through the extraction chambers, the expansion chamber, and a condenser, where the expansion chamber and the condenser can be coupled as a heat exchanger. One or more isolators can be included for selectively removing components that are extracted from the plant material without disruption of the process and provide the removed components in concentrated or pure form.

Band-pass filters for guiding or controlling crystal polymorphism in oil are provided. Band-pass filters convert a passive energy source to a spectral energy pattern tuned to be resonant with different types of molecular oscillations pertinent to oil. Tuned energy patterns convert problematic insoluble crystals to more thermodynamically stable and soluble crystals. Methods include use of the band-pass filter in crude oil recovery and design of band-pass filter parameters for optimal use on a particular oil recovery facility. Band-pass filters also lower the interfacial tension of oil when present with water, which are also provided, as are methods for enhanced recovery of oil from depleted oil fields.

Band-pass filters for guiding or controlling crystal polymorphism in oil are provided. Band-pass filters convert a passive energy source to a spectral energy pattern tuned to be resonant with different types of molecular oscillations pertinent to oil. Tuned energy patterns convert problematic insoluble crystals to more thermodynamically stable and soluble crystals. Methods include use of the band-pass filter in crude oil recovery and design of band-pass filter parameters for optimal use on a particular oil recovery facility. Band-pass filters also lower the interfacial tension of oil when present with water, which are also provided, as are methods for enhanced recovery of oil from depleted oil fields.