摘要:
The invention relates to a method and system for air conditioning, and to a liquid desiccant composition, a use thereof and a process using such composition. In a preferred aspect, the invention relates to an air conditioning method comprising treatment of the air by dehumidification with a liquid hygroscopic desiccant. An conditioning method, comprising a step of a) dehumidifying an air stream comprising water vapour by contacting said it with a liquid desiccant composition comprising a hygroscopic compound and plasmonic particles; b) regenerating some liquid desiccant composition; c) using some regenerated liquid desiccant composition in said step (a), and d) cooling at least part of a dehumidified air stream.
摘要:
The invention relates to the field of culturing algae and use of algae-derived products. The invention also relates to the reduction of CO 2 emission. More in particular the invention relates to combining the capture and conversion of CO 2 from flue gas or biogas and the growth of algae. The invention provides a method for advantageously combining reduction of CO 2 emission with algal growth.
摘要:
The invention is directed to a novel membrane reactor, as well as to processes carried out in such a reactor. The invention provides a membrane bioreactor (MBR) comprising a vessel and contained therein at least one plate-like membrane unit that has at least one surface that is positioned non-vertically and means for introducing gas at a location near the bottom of said membrane unit. Furthermore, the invention provides a process for carrying out a chemical reaction involving micro-organisms, which is carried out in the MBR according to the present invention.
摘要:
The invention is directed to a method and a system for regenerating an endothermic salt composition from an aqueous solution thereof, said method comprising a) contacting a switchable-polarity compound with the aqueous solution of the endothermic salt composition to obtain a raffinate phase and an extract phase, wherein the raffinate phase comprises said endothermic salt composition in a higher concentration than said aqueous solution and said extract phase comprises the switchable-polarity compound and water; and b) separating the raffinate phase and the extract phase into a separated raffinate and a separated extract. The endothermic salt can be used in systems for cooling food, milk, medicines and/or air.
摘要:
The invention relates to a process for treating a feed stream comprising hydrogen sulfide to produce hydrogen and sulfur. The process of the invention comprises: a) contacting said feed stream with a liquid phase comprising a diatomic halogen compound dissolved in an organic solvent and reacting hydrogen sulfide with said diatomic halogen compound thereby producing hydrogen halide and sulfur in a fluid stream comprising said organic solvent, b) dissociating produced hydrogen halide to provide a mixture comprising hydrogen and a diatomic halogen compound, c) separating hydrogen from said mixture and collecting hydrogen as product, and d) separating sulfur from a process stream comprising sulfur and organic solvent, and collecting sulfur as product.
摘要:
The invention is directed to a process for recovering acids from mixtures containing them, in particular organic acids and amino acids, such as acids produced by fermentation in a fermentation broth. The process of the invention comprises contacting a loaded extractant with a solution containing hydroxide ions in the presence of at least one cathode and at least one anode, wherein said hydroxide ions are produced by using said cathode, whereby said acid is converted to its anionic form, by which it can be removed from said extractant and can migrate in the direction of the anode.
摘要:
The present invention is directed to a crystallization process and apparatuses for such processes. The process of the invention comprises a step wherein a liquid comprising a solvent and one or more compounds dissolved therein, is subjected to crystallization conditions in the presence of Dean vortices, which Dean vortices result from said liquid flowing through a channel having at least one curvature.
摘要:
The invention is directed to a method for electrochemically reducing carbon dioxide, and an apparatus for performing the method. The method of the invention comprises a) contacting a carbon dioxide-containing gas stream with a capture solvent, thereby absorbing carbon dioxide from the carbon dioxide-containing gas stream to form a carbon dioxide-rich capture solvent; b) introducing at least part of the carbon dioxide-rich capture solvent into a cathode compartment of an electrochemical cell; c) applying an electrical potential between an anode and a cathode in the electrochemical cell sufficient for the cathode to reduce carbon dioxide into a reduced carbon dioxide product or product mixture in the carbon dioxide-rich capture solvent, thereby providing a carbon dioxide-poor capture solvent; d) collecting the reduced carbon dioxide product or product mixture, and e) optionally recirculating at least part of the carbon dioxide-poor capture solvent to an absorber unit, wherein the anode is separated from the cathode by a semi-permeable separator, and wherein the absolute pressure in the electrochemical cell is preferably 20 bar or more and 138 bar or less and the temperature in the electrochemical cell is preferably 0 °C or more.
摘要:
The invention is directed to a method for depleting a flue gas of a gaseous acid compound. The method of the invention comprises the steps of: i) contacting the gas stream with an amino acid solution lean in said one or more gaseous acid compounds, thereby obtaining a solid phase comprising precipitated amino acid salt and a liquid phase comprising solution loaded with acid compound to be removed; ii) removing part of the liquid phase; and iii) heating the remaining mixture so as to obtain a solution semi-lean in said one or more acid compounds and a first gas comprising at least part of said gaseous acid compound.
摘要:
The invention is directed to an industrial process, for instance a process for the separation of compounds from a fluid mixture or a process for cleaning parts of equipment, using movable particles, as well as to said particles per se, which may be used in such processes.