42results about How to "Polygeneration" patented technology

The invention relates to a method for preparing chitin and chitosan by coupling shrimp and crab shells through a hydrothermal/two-step enzymic method. The method comprises the following steps: removing impurities from shrimp and crab shells, and crushing the shrimp and crab shells; adding organic acid for decalcification treatment, placing filter residues into a hydrothermal reactor, and feeding a reaction medium for hydrothermal reaction; then rapidly relieving the pressure in the reactor, collecting a hydro-thermal treatment product, carrying out solid-liquid separation, and adding protease into a solid material to carry out enzymolysis deproteinization treatment; separating the deproteinized product to obtain solid residues, drying the solid residues to obtain chitin, and adding chitin deacetylase into the chitin for enzyme treatment to prepare chitosan; and finally, treating the organic acid decalcification solution and the protein enzymatic hydrolysate to obtain organic calcium and protein peptide. According to the method, the decalcified shrimp and crab shells are modified through a hydrothermal method, the compact structure of the shrimp and crab shells is broken, the accessibility of subsequent protease and deacetylase is promoted, the enzymolysis efficiency is improved, poly-generation of organic acid calcium, protein peptide, chitin and chitosan is achieved, the production process is rapid, stable and free of pollution, and large-scale industrial application is easy to achieve.

The invention discloses a device and a method for preparation of liquid smoke and co-production of activated carbon by pyrolysis of Chinese hawthorn seeds. The device comprises a feed hopper, a drying chamber, a pyrolyzing furnace, an activating furnace, a gas condensation system, a gas cabinet, a combustor, an activated carbon cooling discharge system and a tail gas treatment device. According to the device, co-production of activated carbon can be realized while the liquid smoke is prepared, comprehensive utilization of the resources is realized, the phenomenon that attention is only paid to production of single product while the economic value of byproducts is neglected is avoided, pollution to the environment is avoided while energy is saved, heat required for the processes of drying, pyrolysis, carbonization, activation and the like of the Chinese hawthorn seeds is supplied by combustible gas of non-condensable gas, activating reaction gas and the like obtained by pyrolysis of the Chinese hawthorn seeds, self-sufficiency of the heat can be realized; according to the system, heat exchange is realized by low temperature air used for combustion of the combustor, vapor required for activation and high temperature activated carbon, each takes what it needs, at the same time, high temperature flue gas is exhausted after passing by the high temperature section and the low temperature section sequentially, gradient utilization of different layers of energy is realized, and the energy utilization efficiency is high.

The invention discloses a method and device for recycling W and V from a waste flue gas denitration catalyst. The method includes the steps that 1, the catalyst is crushed, concentrated sulfuric acid is added for acidolysis, water is added after acidolysis, and an oxygen titanium sulfate solution is obtained; 2, the oxygen titanium sulfate solution is filtered, filter residues are collected for standby application, the filter liquor is heated, concentrated and hydrolyzed, and a hydrolysis product is obtained; 3, the hydrolysis product is filtered, and settlement treatment is conducted on the filter liquor; 4, filtering is conducted after settlement treatment, supernatant liquid is taken, an excessive amount of NH<4>Cl is added to the clear liquid for a reaction, then filtering is conducted, and ammonium metavanadate sediment is obtained; the ammonium metavanadate sediment is calcined, and V<2>O<5> is obtained; 5, an excessive amount of ammonium hydroxide with the concentration being 10%-28% is added to the filter residues in step 2 for a reaction, and then filtering is conducted; the filter liquid is heated to be 80 DEG C-100 DEG C, and an ammonium paratungstate crystal is obtained; the ammonium paratungstate crystal is dried and calcined, and the WO<3> is obtained. By means of the method and device, the V<2>O<3> and the WO<3> which are both high in purity and recovery rate can be extracted from the waste flue gas denitration catalyst.

The invention discloses a method and device for recycling Ti and V from a waste flue gas denitrification catalyst. The method comprises the following steps that 1, the catalyst is smashed, concentrated sulfuric acid is added for acidolysis, and water is added after acidolysis is performed to obtain a titanyl sulfate solution; 2, the titanyl sulfate solution is filtered, filter residues are collected for use, and a filtrate is heated and concentrated for hydrolysis to obtain a hydrolysis product; 3, the hydrolysis product is filtered to obtain a filtrate and metatitanic acid sedimentation; 4, salt treatment, drying and roasting are performed on the metatitanic acid sedimentation to obtain a finished product TiO2; 5, sedimentation treatment and filtering are performed on the filtrate in the third step, a supernatant is taken, excessive NH4Cl is added into the supernatant for a reaction, and filtering is performed to obtain ammonium metavanadate sedimentation; the ammonium metavanadate sedimentation is roasted to obtain pure V2O5. The method can recycle pure TiO2 and V2O5 from the waste flue gas denitrification catalyst.

The invention aims to provide a distributed-type non-tracking solar expander power generation and poly-generation system. A solar non-tracking collecting system (8) is connected with an evaporator (1) or a heat accumulator (5); the evaporator (1) is arranged in the solar non-tracking collecting system or the heat accumulator, wherein the evaporator (1), a fluid generator (2), a condenser (3) and a working medium circulating pump are connected in series to form an enclosed circulating cavity; a power generating working medium is enclosed into the enclosed circulating cavity; the power generating working medium in the evaporator (1) is heated by the heat energy which is collected by the solar non-tracking collecting system (8); the power generating working medium converts the heat energy which is collected by solar energy into power energy through the fluid generator (2); the power generating working medium enters the condenser (3) and is condensed after passing through the fluid generator; and the condensed power generating working medium is sent into the evaporator (1) again through the working medium circulating pump and is evaporated, thus the circulating power generation is realized.

The invention provides a high-value comprehensive utilization method of bagasse fibers, which comprises the steps of preparation of xylooligosaccharide and solvent lignin by ethanol/water solution pretreatment, preparation of glucose by enzymolysis and the like. The method specifically comprises the following steps: mixing aired and pulverized bagasse raw material with the ethanol/water solution (v/v, 40/60-80/20), carrying out pretreatment at 160-200 DEG C in the presence of 0-10 wt% acetic acid for 30-90 minutes to obtain a pretreated solution, and adding a composite cellulase into the pretreated residue to carry out enzymolysis, thereby obtaining the enzymolysis saccharification solution and enzymolysis residue. The ethanol adopted in the pretreatment can be recovered by distillation, thereby reducing the chemical consumption, lowering the pollutant emission and relieving the environmental pollution. The ethanol pretreatment implements coproduction of the xylooligosaccharide and solvent lignin, and enhances the subsequent enzymolysis and saccharification efficiency; and the enzymolysis performed on the pretreated residue can convert the cellulose in the raw material into glucose, thereby implementing comprehensive utilization of the three major components in the wood fiber raw material.

The invention provides a method for preparing silicon dioxide aerogel from quartz tailings as a raw material. The method comprises the following steps: step 1, the quartz tailings are washed, dried, ground and sieved and then ground and mixed with sodium carbonate powder, a mixture is calcined, and a calcination product is obtained; step 2, the calcination product is ground and sieved, undersized matter is added to hot water to be stirred and dissolved, the solution is filtered, a filtrate is taken, and water glass is obtained; step 3, the pH value of the water glass is regulated with hydrochloric acid, a sol-gel reaction is performed, a product is left to stand for aging, and hydrogel is obtained; step 4, free water in the hydrogel is filtered out, residual moisture is replaced with absolute ethyl alcohol, and alcogel is obtained; step 5, the alcogel is soaked with an n-hexane solution of trimethylchlorosilane, and hydrophobically modified alkane gel is obtained; step 6, drying is performed, and the silicon dioxide aerogel is obtained. The raw materials are cheap and available, the preparation process adopts mild conditions and has low equipment requirements, so that the production cost of the silicon dioxide aerogel is reduced greatly, and the prepared aerogel has good performance.

The invention discloses a method and an apparatus for recycling metal oxide from a waste flue gas denitration catalyst. The method comprises the following steps: S1, the catalyst is crushed and concentrated sulfuric acid is added for acidolysis, after acidolysis, water is added to obtain a titanyl sulfate solution; S2, the titanyl sulfate solution is filtered, filter residues are standby, a filtrate is heated, condensed and hydrolyzed for obtaining a hydrolysate; S3, the hydrolysate is filtered to obtain a filtrate and a metatitanic acid deposition; S4, salt treatment, a drying and a calcination are carried out for the metatitanic acid deposition, and TiO2 is obtained; S5: sedimentation treatment is carried out for the filtrate in the S3, after filtering, a upper level clear liquid is taken, excessive NH4Cl is added into the clear liquid for reaction, after filtering, andammonium metavanadate deposition is obtained; the ammonium metavanadate deposition is calcined, and V2O5 is obtained; S6, excessive ammoniacal liquor is added into the filter residues in the S2 for reaction, and a filtering is carried out; a filtrate is heated to generate a ammonium paratungstate crystal; the ammonium paratungstate crystal is dried and calcined, and WO3 is obtained. According to the method, V, Ti and W three components can be completely separated.

The invention discloses a device and a technology for poly-generation of carbon, heat and electricity based on biomass gasification. The technology comprises steps of biomass transport, biomass gasification, boiler processing, electricity generation, desulphurization and dust removal. A large-dip-angle belt is adopted to perform continuous automatic feeding for biomass transport; a composite gasification fixed bed gasification technology with combination of upper and lower suction is adopted for biomass gasification, and a byproduct is a carbonized material; steam produced by a boiler after burning of gasified gas enters a steam turbine for generating electricity and then passes through a heat exchange station for providing a heat source for heating; a scattering tower based desulphurization and dust removal integration technology is adopted for desulphurization and dust removal. The device and the technology have the advantages of being environmentally friendly and safe and realizingpoly-generation of carbon, heat and electricity.

The invention relates to a poly-generation production system of magnesium metal and hydride of magnesium metal. The system comprises a calcium carbide production device, a crystallization chamber, a magnesium refining and crushing device, a reaction vessel, a magnesium hydroxide calcining furnace, a magnesium hydroxide container and an inert gas pipeline; a calcium carbide liquid outlet of a rotary kiln is connected with a calcium carbide liquid inlet of the reaction vessel; the magnesium hydroxide container is connected with the magnesium hydroxide calcining furnace; a magnesium oxide outletof the magnesium hydroxide calcining furnace is connected with a magnesium oxide inlet of the reaction vessel; the inert gas pipeline is respectively connected with the magnesium hydroxide calcining furnace and the magnesium oxide inlet of the reaction vessel; a magnesium steam outlet is connected with the crystallization chamber; a solid outlet of the crystallization chamber is connected with a magnesium metal container by means of a magnesium refining and crushing device; a gas outlet is connected with the inert gas pipeline by means of an induced draft fan. The poly-generation production system effectively utilizes the heat of all technological processes, thus being energy-saving and environmentally-friendly; the poly-generation production system realizes the poly-generation of multipleproducts such as magnesium metal, magnesium hydride, pure carbon maple energy and electric power, thus being considerable in economic benefit.

The invention provides a method using the quality-based utilization of low-rank coal to prepare methanol and oil in a poly-generation manner. The method has the advantages that the dried low-rank coalis subjected to gasification reduction to obtain volatile components, hydrocarbon and the like in the volatile components is reformed and converted to obtain CO and H2 needed by oil synthesizing so as to prepare the methanol and the oil, and the volatile components in the low-rank coal are sufficiently and effectively utilized; by using the quality-improved coal obtained by the gasification reduction of the low-rank coal as the raw material to prepare the methanol and the oil, the coal substances in the low-rank coal are fully utilized; the methanol and the oil are prepared in the poly-generation manner, byproducts generated by the synthesizing process of the methanol or the oil can be effectively recycled, resources can be saved, multiple approaches are achieved, the prepared oil and methanol are few in impurities and high in quality, the utilization rate of the low-rank coal is increased greatly, and the method conforms to efficient and clean coal utilization vigorously advocated byChina.

The invention discloses a nuclear reactor open type air circulation system coupled with wind and light energy storage. The system mainly comprises a compressor, a turbine, a generator, a heat regenerator, a reactor, a heat exchanger, a gas storage device, a regulating valve, a wind driven generator, a photovoltaic power generation device, a motor and the like. According to the system, a nuclear reactor open type air Brayton cycle is used for outputting basic electric load to the outside; meanwhile, a wind and light energy storage system is coupled, clean and unstable wind energy and solar energy are converted into compressed air to be stored, and in the peak period of electricity utilization, the stored compressed air is added into a Brayton cycle to improve the external generating capacity; the turbine exhaust after power generation can also be used for supplying heat to the outside or driving a refrigeration cycle after heat is recovered through a heat regenerator. The system is low-carbon and clean, gradient utilization of energy can be achieved, and the comprehensive utilization efficiency of energy can be effectively improved.

The invention discloses a microalga-based biomass refining method and a system for implementing the microalga-based biomass refining method. The method comprises the following steps: S1, pretreating microalgae to obtain dry alga powder; S2, separating components of the dry alga powder to obtain alga oil, proteins and polysaccharides; and S3, performing pyrolysis on the alga oil for upgrading to obtain diesel, performing pyrolysis on the proteins for upgrading to obtain aromatic hydrocarbons, and performing pyrolysis on the polysaccharides for upgrading to obtain gasoline. Therefore, by adopting the microalga biomass as a raw material source, the refining method also realizes co-production of multiple oil products such as gasoline, diesel and kerosene on the basis of realizing co-productionof coke, fuel gas and oil products, and promotes the conversion from the petroleum-based refining industry to the bio-based refining industry. Furthermore, the refining method can select different raw materials for different needs of gasoline, diesel and kerosene in actual production activities, thereby flexibly adjusting the yields of bio-based liquid fuels and greatly improving the economy.

The invention discloses a solar-driven lignite multi-generation power generation system and an operation method. The system comprises a steam dryer, a tower type solar pyrolyzer, a tower type solar gasifier, a mixer, a combustion chamber and a gas turbine which sequentially communicate, and further comprises a waste heat utilization system which is formed by sequentially communicating a waste heatboiler, a steam turbine, a condenser and a water pump; a tower type solar reflector field is used for focusing solar energy as a heat source of the tower type solar gasifier and the tower type solarpyrolyzer, and a groove type solar energy collector is used for focusing solar energy as a heat source of the steam dryer, and the purpose is that the heat sources of the tower type solar gasifier, the tower type solar pyrolyzer and the steam dryer are maintained at the optimal temperature on the basis of fully utilizing solar energy; and the water and waste steam flow entering the tower type solar gasifier are adjusted through waste steam regulating valves, and the purpose is that water and the semi-coke ratio in the tower type solar gasifier is guaranteed to maintain at an optimal value. Thesystem realizes the multi-cogeneration of electricity and tar, and is clean and efficient.

The invention discloses a method and device for high-temperature co-gasification of combustible solid waste, biomass and coal. The method includes the following steps: performing sorting on the combustible solid waste and the biomass, performing crushing, performing drying, and performing mixing with the coal to obtain a mixed material; performing gasification on the mixed material, performing combustion, sending a mixed material which is not completely reacted in the gasification process to the combustion process for combustion, performing gas-solid separation on a flue gas which has high-temperature ash and is generated in the combustion process, and sending the separated high-temperature ash to the gasification process to provide heat for a gasification reaction, so as to make the gasification process coupled with the combustion process. The method provided by the invention not only improves the coal gas calorific value and energy utilization rate of gasified coal, saves the production costs of coal gasification, but also is environmentally friendly, solves the comprehensive treatment and utilization problems of the combustible solid waste and the biomass, and realizes the maximum utilization of energy sources.

The utility model provides a solid grain block heat accumulating type multi-generation unit realizing low-cost and high efficient energy utilization via mutual use of various energies and heat accumulation via a heat accumulator, and in particular realize effective utilization of waste heat and low ebb power. Solid grains are employed as heat accumulating material; the solid grains are transferred to a container; at least three chambers are formed in the container, one heat accumulating chamber, one multi-generation component chamber and one control system chamber; a heat exchanging component is arranged between the solid grains and a multi-generation component; heat is exchanged between heat energy and the solid grains in the container via the fluid; and when heat energy is required, heat energy is used via the fluid. The utility model also aims to provide a solid grain block heat accumulating type multi-generation unit trolley moving the heat accumulator to an area requiring heat energy for utilization; and movable heat accumulation can be achieved.

The invention provides a supercritical and above parameter coal power unit coupling supercritical water hydrogen production system and a method thereof, and the system comprises a supercritical and above parameter coal power unit thermodynamic system which is used for providing supercritical water, pulverized coal and low-pressure medium-temperature water; and a supercritical and coupling hydrogen production system used for producing hydrogen by using supercritical water, pulverized coal and low-pressure medium-temperature water. The residual load space of the coal power unit can be fully utilized, the unit is in a high-load-level operation state, the operation level and efficiency of the coal power unit are improved, when the unit participates in load reduction and peak regulation, under the condition that the evaporation capacity of a boiler is not reduced, generated supercritical water can be effectively utilized, the generating capacity is reduced, flexible peak regulation is achieved, and the unit service life is prolonged. The thermodynamic system of the supercritical and above parameter coal generator set can be directly transformed through the existing widely adopted supercritical and above parameter coal power unit thermodynamic system, so that the related cost of supercritical water hydrogen production is greatly reduced.