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83results about How to "Reduce industrial energy consumption" patented technology

Method and system for recycling non-clean water source by utilizing osmotic energy

The invention provides a method and a system for recycling a non-clean water source by utilizing osmotic energy. The method comprises the steps of enabling a raw material solution to circulate to one side of a semi-permeable membrane assembly through a pump, wherein the raw material solution is the non-clean water source which is generated in industry, municipal and life processes and cannot be directly utilized; enabling a resolvable driving substance in the form of a driving solution to circulate to the other side of the semi-permeable membrane assembly through the pump, unidirectionally diffusing water in the raw material solution to the driving solution though the semi-permeable membrane assembly so as to dilute the driving solution and realize the concentration of the raw material solution; enabling the diluted driving solution to return back to a solution storage pool, enabling the driving solution to return to a saturated state or improving the concentration, restoring the driving effect, repeating the processes of circulation, one-way penetration and driving restoring. The method and the system provided by the invention have the advantages that the condensation process of the non-clean water source and the dissolution process of the driving solute are simultaneously realized, the consumption of the uncontaminated water source is reduced, the industry energy consumption is reduced, and thus the production cost is reduced, and the economic benefits are improved.
Owner:上海颐润科技有限公司 +1

Method used for simultaneous extraction of ammonium sulfate and ammonium thiocyanate from coking waste liquid

The invention discloses a method used for simultaneous extraction of ammonium sulfate and ammonium thiocyanate from coking waste liquid. The method comprises following steps: coking waste liquid is filtered so as to remove impurities, and is delivered into a stirrer; air is pumped into the stirrer, a catalyst is added, and reaction is carried out for 3 to 10h at 50 to 90 DEG C with a pH value ranging from 5 to 6; active carbon is adopted for heating decoloring of filtered coking waste liquid at 55 to 85 DEG C for 0.3 to 1.5h; H2O2 is added for 1 to 3h of oxidation, an obtained product is subjected to evaporative crystallization and filtration, and an obtained crystal is collected; the crystal is delivered into a reactor, an alcohol organic solvent is added, an obtained mixture is mixed fully, and is filtered so as to obtain ammonium sulfate crystal; an obtained ammonium thiocyanate alcoholic solution is subjected to evaporative crystallization so as to obtain ammonium thiocyanate crystal, and an evaporated alcoholic solution is collected and recycled. The method can be used for simultaneous preparation of ammonium sulfate and ammonium thiocyanate; purifying process can be recycled; industrial energy consumption is low; recovery rate of ammonium sulfate and ammonium thiocyanate is high; no waste is discharged; the method is green, and is high in recovery rate, low in cost, and high in purity; and no pollution is caused.
Owner:SHAANXI RES DESIGN INST OF PETROLEUM CHEM IND

Industrialized preparation method of guacetisal and medical application of dry suspension

The invention discloses an industrialized preparation method of guacetisal, which comprises the following steps: based on salicylic acid and guaiacol as raw materials, carrying out esterification on the raw materials so as to obtain salicylic acid-guaiacol ester; and then, carrying out acetylization on hydroxy so as to obtain guacetisal, wherein in the esterification reaction, one of pyridine, 4-dimethylamino-pyridine and dimethylformamide is selected as a catalyst; and in the step of carrying out acetylization on hydroxy, one of pyridine, 4-dimethylamino-pyridine and dimethylformamide is added and used as an auxiliary alkali reagent. According to the invention, the technological production cost is low, the synthetic route is short, the reaction rate is improved, and the reaction temperature is reduced, so that the reaction temperature is milder and the preparation method is suitable for industrialized production; the post-treatment processes of esterification and acetylization reactions are simple, complicated quenching, extraction and solvent replacement operations are avoided, the time of batch production is greatly reduced, and the application amount of organic solvents is maximally reduced; and therefore, the industrialized preparation method of guacetisal is particularly suitable for industrialized production.
Owner:DALIAN MINGSEN PHARMA

Industrial tail gas treatment system

The invention relates to the field of tail gas treatment devices, and concretely relates to an industrial tail gas treatment system. The system comprises a pretreatment unit, a tail gas catalysis device, a sulfur removal device and a grease removal device which are sequentially arranged in the industrial waste gas conveying direction. Compared with like systems in the prior art, the industrial tail gas treatment system provided by the invention has the advantages that preliminary separation and forced separation treatment of industrial waste gas are realized, gaseous pollutants such as sulfurdioxide and nitrogen oxide and particulate pollutants in the industrial waste gas are removed at the same time, the removal efficiency can reach up to 98% or above; and the efficiency of removing sulfur dioxide, nitric oxide and other acid gases in waste gas can reach 95% or above; secondary dust removal treatment on the tail gas is achieved by conducting cyclone separation dust removal and electrostatic dust removal on the tail gas; and meanwhile, VOC in the tail gas is purified through a catalyst formed by loading a perovskite type rare earth composite oxide on a carrier, so the flue gas treatment amount is large, the dust collection efficiency is high, the catalytic efficiency is high, the service life is long, and the maintenance cost is low.
Owner:苏州云式环境科技有限公司

System device and application for desorbing hydrogen sulfide in gas phase

The invention discloses a system device for desorbing hydrogen sulfide in a gas phase. The system device comprises a raw material gas inlet, an air inlet, a separator, a double-grade rotation fillingbed absorption-regeneration device, a demister, a barren liquor tank, a rich liquor tank, a settlement separation system and a sulfur recycling system, wherein the raw material gas inlet is connectedwith gas inlet of the separator; the gas outlet of the separator, the demister, the barren liquor tank, the rich liquor tank, the air inlet, a tail gas discharge hole and the settlement separation system are respectively connected with the double-grade rotation filling bed absorption-regeneration device; the upper-layer liquid outlet of the settlement separation system is connected with the liquidinlet of the barren liquor tank; a bypass is arranged between the settlement separation system and the barren liquor tank; the bypass is connected with the liquid inlet of the rich liquor tank through a pipeline; and the lower-layer liquid outlet of the settlement separation system is connected with the sulfur recycling system. As conventional absorption equipment and regeneration equipment are combined into one piece of equipment, industrial energy consumption and industrial floor spaces can be reduced, and due to adoption of stator-rotor devices, the process transfer efficiency is greatly improved.
Owner:BEIJING UNIV OF CHEM TECH
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