130results about How to "To achieve the goal of emission reduction" patented technology

The invention relates to a processing method of wastewater desulfurized by a fume wet method. The processing method of the wastewater desulfurized by the fume wet method is characterized by comprising the following steps of: (1) inputting the wastewater desulfurized by the fume wet method into a pH value regulation tank, regulating the pH value, adding soluble sulfide, a flocculating agent water solution and a coagulant aid water solution, flocculating, clarifying, standing, stratifying, burying silt after filtering, regulating the pH value again, flocculating, clarifying, standing, stratifying and processing a solid after filtering a precipitation bed; (2) preprocessing supernatant liquid after standing and stratifying in the tank, introducing the purified flue gas under a stirring condition after inputting into a softening tank, stopping introducing the flue gas until the pH is 9-10, then stirring continuously, standing and stratifying; and (3) evaporating and concentrating clear liquid after standing and stratifying in the softening tank. The invention can recycle resources circularly and achieves zero discharge truly; and the method for introducing the flue gas in the invention has little use dose and low cost and has the function of lowering carbon discharge.

The invention relates to a sand-consolidating and water-blocking profile modifying agent for oil sludge sand. The profile modifying agent is prepared by mixing the following raw materials: oil sludge sand, 10 to 90 portions of consolidation agent or adding modifier, a consolidation accelerant or a consolidation retardant; the oil sludge sand is subjected to ball milling through a ball mill; part of large crude oil is separated off so as to reach the requirement of granularity of the profile control agent; therefore, the oil sludge sand with granularity of less than 200 meshes is less than 70 percent of the total mass of the oil sludge sand; and the consolidation agent is selected from one or a mixture of one or more of cement or cement clinker, steel slag, slag, pulverized coal ash, gypsum, lime and magnesia. In application, the profile control agent is prepared to a 1 to 20 percent suspension solution; and the suspension solution is injected into a deep part of stratum of an oilfield through profile modification equipment. The profile modifying agent fully utilizes mass oil sludge sand produced in the production process of various oilfields, realizes the aim of emission reduction; and the oil sludge sand is recycled and is used as the sand-consolidating and water-blocking profile modifying agent, thereby achieving the aim of consolidating sand, blocking water and improving extraction yield.

The invention relates to a one-bath one-step process for a dispersing/reactive dye of a cotton-polyester blended fabric. The one-bath one-step process mainly comprises the following steps performed on the cotton-polyester blended fabric: dispersing/reactive dye one-bath pad dyeing; infrared and hot-air drying in advance; high-temperature baking fixation; padding in a reactive dye fixation solution; steam fixation; water washing; soaping; water washing; drying; terylene dyeing; and obtaining finished cloth. The one-bath one-step process is characterized by fully padding an unstained cotton-polyester blended fabric in a dispersing/reactive dye one-bath solution, introducing infrared and hot air so as to dry 60-70% of water in the fabric in advance, baking at high temperature so as to dye and fix color for polyester fibers, fully padding in the reactive dye fixation solution, performing steam fixation so as to dye and fix color for cotton fibers, and performing the processes of water washing, soaping and water washing so as to fully develop color on the fabric and fully wash off the surface dyeing on the fabric, thereby finishing a dyeing process. The dry and wet grinding fastness can fully meet the customer demand.

The invention relates to an emission reduction system of sintered fume nitric oxide with low energy consumption and a method thereof. The system comprises a nitric oxide high-concentration region air bellow A, a nitric oxide low-concentration region air bellow B, a denitration dust remover, a denitration device, a dust remover, a desulfuration device, a main exhaust fan, an emission chimney and a circulation loop. The denitration dust remover is connected with the air bellow A to collect the fume in the air bellow; the denitration dust remover is sequentially connected with the denitration device and the desulfuration device; and the fume subjected to dust removal and denitration is guided into the desulfuration device. The dust remover is connected with the nitric oxide low-concentration region air bellow B to collect the fume; the dust remover is connected with the desulfuration device; and the fume subjected to dust removal is guided into the desulfuration device. The desulfuration device is sequentially connected with the main exhaust fan and the emission chimney so as to desulfur the fume and discharge into the atmosphere. The circulation loop at least comprises a circulation fume hood, a circulation blower, a circulation fume dust remover and a circulation pipeline. The method comprises the following steps of collecting fume, removing dust, denitrating, desulfuring, discharging fume into the atmosphere and the like. The whole system is relatively simple and has obvious effects of energy saving and emission reduction.

The invention discloses a resource utilization method of livestock and poultry breeding wastes. The method comprises the following steps of carrying out solid-liquid separation on livestock and poultry breeding wastes to obtain solid manures and breeding wastewater, composting solid manures at a high temperature and carbonizing to prepare biomass carbon and carrying out biogas fermentation on the breeding wastewater and concentrating to obtain a liquid fertilizer. By adopting the method disclosed by the invention, livestock and poultry breeding wastes are subjected to optimal utilization in form of material and energy to obtain biomass carbon and the concentrated liquid fertilizer capable of being applied to the agricultural production and thus the resource utilization of wastes is achieved, and the recycling of resources can be realized inside a livestock and poultry breeding wastes treatment region to achieve the purposes of reducing energy consumption and pollutant emission.

The invention provides a low-temperature dyeing process of a fiber fabric. The low-temperature dyeing process comprises the processes of pretreatment, pre-sizing, dyeing, reduction clearing, fixing, softening treatment, drying, sizing, calendaring and rolling. In the dyeing process, the highest temperature does not exceed 100 DEG C, mild dyeing is carried out by using a gradual warming method and pH value regulation is carried out through a buffer solution, so that a proper acid environment required during the dyeing is satisfied and the dyeing effect is excellent; during the dyeing, a leveling agent is added to ensure that the dyeing is uniform; anhydrous sodium sulphate is added to postpone the dyeing process of the pigment and the temperature rises slowly at the same time, so that the uniform dyeing is ensured; a smoothing agent is added to prevent the scratching and local fibrillation; a penetrant and a diffusant are added to ensure that the penetration and the diffusion of the dyeing are relatively good; by means of the strict control in the aspects of temperature, acid, auxiliaries, time and the like, the low-temperature dyeing process of the fiber fabric has the advantages that the dyeing firmness is high, the dyeing is uniform, the dyeing stability is good and the effect is excellent at low temperature.

The invention provides a device and method for preparing an activated carbon material for an electrochemical capacitor, belonging to the technical fields of coal chemical industry and microwave chemistry. The method comprises the following preparation processes of: deashing coal particles serving as raw materials by using hydrochloric acid and hydrofluoric acid, modifying the deashed coal by using nitric acid in an auxiliary way, mixing the modified coal serving as a carbon source with potassium hydroxide and deionized water, stirring to obtain a mixture, stirring and evaporating the mixture to obtain a solid mixture, and then performing microwave-assisted activating, washing, drying and grinding on the solid mixture to obtain the activated carbon. The invention has the advantages that the activation time is only 20-30 minutes, the mass ratio of potassium hydroxide to coal is (0.5-3):1, the preparation process is simple, the microwave-assisted heating is uniform, efficient and energy-saving, the consumption of the potassium hydroxide is reduced, and the activation process has the advantages of uniformity and high efficiency. The prepared activated carbon is used as an electrode material of the electrochemical capacitor and has better stability and excellent comprehensive property.

The invention belongs to the metallurgy technical field and discloses a sponge iron production technology by coal gasification. The invention is characterized in that: coal and oxygen, water or steamreact in a high temperature high pressure entrained flow gasifier to generate reducing coal gas rich in CO+H2, the reducing coal gas is subject to dust removal, desulfuration and pressure and heat transformation by a gasifier discharge coal gas process system and then mixed with decarburization gas rich in CO+H2 after shaft furnace top gas passes through a return coal gas process system and a carbon dioxide separation system, and then the mixed gas is heated to the temperature range required by the shaft furnace and then fed into the shaft furnace to reduce iron ore, so as to produce sponge iron. The invention reduces high temperature high pressure entrained flow gasifier cost; the shaft furnace top gas circulating reflux is fully utilized to reduce coal use consumed in sponge iron production, and cost is saved; and CO2 is collected and recycled.

The invention provides a method and a system for treatment and recycling of feces and waste from livestock and poultry culture. The system comprises a waste water organic matter accumulating system, an anaerobic fermentation system, a sludge return system and a waste water recycling system. The method comprises the following steps: based on the characteristic that active sludge can highly absorb organic matters in waste water, accumulating the organic matters in the waste water from livestock and poultry culture; generating methane by anaerobic fermentation of sludge enriched with high-concentration organic matters together with dried feces so as to realize the recycling of biomass energy; and further treating low-concentration waste water after enrichment of organic matters by using constructed wetland and a sterilization method to meet water quality standards and to realize zero discharge of waste water. In addition, part of sludge in a sedimentation tank and biogas residues generated by anaerobic fermentation are returned and aerated in a regeneration tank to recover the high absorption activity so as to circularly absorb the organic matters in the waste water, thereby realizing recycling of the sludge and the biogas residues. The method and the system realize the treatment and recycling of feces and waste from livestock and poultry culture as well as recycling of biomass in the waste water and zero discharge of the waste water, and have the advantages of simple structure, low investment and operation cost, high treatment efficiency and the like.

The carbonization speeding up technique for stabilizing the heavy metals in the burnt fly ash belongs to the field of hazardous solid wastes treatment. Filling 10-50% of water into the fly ash of the burnt residue and making it into the fly ash with certain ratio of water, putting it into a shakable or a turnover container, then let the burnt fly ash have carbonization reaction with CO2 intermittently or continuously input. Small portion of heavy metal and large portion of limestone in the burnt fly ash carbonize with CO2 and turn into carbonate material that can last stably in the natural world. The carbonization process promotes the stabilization of the burnt fly ash, with water against limestone equaling to 20%, reducing Pb intensity to 0.081mg/1. Besides, the burnt fly ash absorbs CO2 well, with dried burnt fly ash can absorb CO2 3% of its own weight. The invention is low in cost and feasible for mechanical operation.

The invention discloses an emission, adsorption and desorption system for cold start of an automobile and a control method, belonging to the field of internal combustion engines. After an engine (3) is started, exhausted gases at a cold start stage of an automobile engine pass through an adsorption device (13) and then are exhausted by an exhaust pipe (5) by controlling opening-closing states of various valves; after the cold start stage is ended, the adsorption device (13) is enabled to be positioned in a bypass state; after a first-stage three-way catalytic converter (4) and a second-stage three-way catalytic converter (18) separately reach working temperatures, high-temperature tail gases of the automobile engine are enabled to heat the outer surface of the adsorption device (13) through an external pipeline (14) of the adsorption device, and pollutants adsorbed in the device are enabled to be gradually desorbed; and the pollutants adsorbed in the adsorption device (13) are brought back to the engine (3) for burning by using negative pressure generated by vacuum degree of an engine intake manifold (1) and air entering from a desorption air inlet pipeline (17), thereby achieving the aims of saving energy and reducing emission.

The invention provides a method for r improving thermal stability of dibutyl/diisobutyl phthalate, and belongs to the technical fields of fine organic synthesis and application and machine shaping of macromolecular new materials. The method which improves the intrinsic thermal stability of plasticizers of dibutyl phthalate and diisobutyl phthalate by an inorganic carbonate heat treatment is characterized in that: protonic acid, such as sulfuric acid, is adopted to serve as an esterifying catalyst, coarse ester is thermally decomposed by anhydrous solid carbonates in a reaction system prepared through esterifying synthesis of benzoic anhydrides and n-butyl alcohol or isobutyl alcohol, the catalyst and byproducts generated in the reaction process are effectively removed, coloring byproducts in the esterifying reaction system can be effectively removed, the effect of improving the product stability is achieved, and the requirement on thermal treatment of polyvinyl chloride (PVC) products is met; compared with the conventional production methods, the method has the advantages that: process wastewater is reduced by two-thirds, the production period is shortened, and the aims of energy conservation and emission reduction are fulfilled.

The invention discloses a composite phase change heat exchange system for flue gas heat recovery of boiler, comprising an original coal saving device of the boiler and an air pre-heater, a dust remover and a desulfurization tower; a heat conducting oil heater, a stage I composite phase changer, a stage II composite phase changer, a stage III composite phase changer, and a temperature adjusting system matched with the stage I, state II and stage III composite phase changers are disposed in the flue; the temperature adjusting system can be used for conveniently adjusting the wall surface temperature of the phase change heat exchanger; the heat conducting oil is used as the heat source of the stage III phase change heat exchanger, so as to improve the flue purity and reach the flue discharge requirement. The invention can solve the difficult problem that it is difficult to dispose the evaporation section of the heat exchange round tube in vertical flue or oblique flue, so as to realize the integrated compact arrangements of the evaporation section and condensation section of the phase change heat exchanger; the disadvantage of GGH is overcome; the hazard degree of low-temperature corrosion is decreased, so as to realize the targets of energy saving, water saving and emission reduction.

A method for comprehensively utilizing and processing asparagus relates to comprehensive utilization of gracilaria. The invention provides a method for comprehensively utilizing and processing gracilaria, through which phycoerythrin polypeptide, agaragar and seaweed insoluble dietary fiber can be obtained simultaneously. The method comprises the following steps: water is added into gracilaria, then protease is added for hydrolization, filtering is performed, the temperature of the filtrate is increased to deactivate enzyme, and phycoerythrin polypeptide and residue are obtained through concentration and spray drying; the obtained residue is treated with aqueous alkali to remove sulfate radical contained in agaragar in the residue, the residue is bleached and water-washed to be neutral, then water is added to boil agaragar, the frond and the agaragar liquid are roughly filtered, and after the rough filtrate is filter-pressed, solidified, chipped, dehydrated through squeezing, dried andcrushed, powdery agaragar and frond residue are obtained; after the frond residue is dehydrated through squeezing and dried, seaweed insoluble dietary fiber can be obtained.

The invention discloses an energy-saving device and an energy-saving method for producing hard carbon black. The energy-saving device for producing the hard carbon black are characterized by comprising a hard carbon black reaction furnace (7), a high-temperature air preheater (13) of a first smoke outlet (10), a tail gas preheater of a second smoke inlet (21) and a second smoke outlet (22), a raw oil preheater of a third smoke inlet (14) and a third smoke outlet (15), a low-temperature air preheater (25) and a low-pressure fan (35) sequentially, wherein the low-temperature air preheater (25) and the low-pressure fan (35) are communicated with a tail gas outlet (19) of a bag filtering box; the low-temperature air preheater is communicated with a condenser (26); the condenser is communicated with a gas-water separator (27); and a flow valve is communicated with a recovery tail gas inlet (23) of the tail gas preheater. A tail gas flow distributing valve (37) is arranged between the tail gas outlet (19) and the low-temperature air preheater (25); the low-pressure fan (35) is arranged between the low-temperature air preheater and the condenser; an oxygen-enriched mixer (36) and an oxygenator (31) are arranged between a high-temperature air outlet (8) of the high-temperature air preheater and a high-temperature oxygen-enriched air inlet (4); and the oxygen-enriched mixer is connected with the oxygenator.

The invention relates to green fuel oil and a preparation method thereof. The conventional biomass thermal cracking technology converts low-grade biomass energy into liquid biomass thermal cracking tar, namely biological tar. The produced biological tar has high corrosion, water content of 15 to 35 percent, high oxygen content, instability and lower heat value. The biological tar obtained by thermal cracking of biomass raw materials and hydrocarbon substances are added into a reactor together, then the green fuel oil of gasoline, diesel oil and the like is obtained by hydrogenated de-oxidation and hydrogenated cracking processes under the action of a catalyst, and chemical substances in the tart are reclaimed. The raw materials are un-edible substances, and have the characteristics of high reaction speed, low reaction temperature, high yield and low equipment investment, so the green fuel oil produced by the raw materials has high quality, the oxygen content of the fuel oil is less than 0.1 percent, the heat value is 45 to 48MJ/kg, the total acidity is less than 0.5mg KOH/g sample, the fuel oil is mutually soluble with the gasoline and the diesel oil in any ratio, and the yield ofthe fuel oil can be up to over 40 percent.

The invention provides a vehicle control method and device, terminal equipment and a computer readable storage medium. The vehicle control method comprises the steps that first information is sent toan engine electronic control unit (ECU) so as to indicate the engine ECU to return second information used for representing whether a vehicle starts an engine automatic starting and stopping functionor not; whether the vehicle starts the engine automatic starting and stopping function or not is judged according to the second information, if the automatic starting and stopping function is started,whether the number of times of starting an engine by the vehicle in a preset time period is greater than a first preset number of times or not is judged; if the number of times of starting the engineby the vehicle in the preset time period is greater than the first preset number of times, third information is sent to the engine ECU so as to indicate the engine ECU to stop the automatic startingand stopping function; if the automatic starting and stopping function is not started, whether the number of parking times of the vehicle in the preset time period is less than a second preset numberof times or not is judged; and if the number of parking times of the vehicle in the preset time period is less than the second preset number of times, fourth information is sent to the engine ECU so as to indicate the engine ECU to start the automatic starting and stopping function. Through the vehicle control method, the setting efficiency of the engine automatic starting and stopping function can be improved.

The invention relates to a device and a method for generating hydrogen and oxygen by solar energy electrolyzing water and controlling combustion. The device comprises a hydrogen and oxygen generator for generating hydrogen and oxygen by electrolyzing water, and the power supply of the hydrogen and oxygen generator is a solar battery; and the hydrogen and the oxygen are respectively communicated with a coal or fuel combustion chamber through pipelines. The method comprises the following steps: Step S1, generating the oxygen and the hydrogen by the solar battery electrolyzing water; and Step 2, controlling the hydrogen to burn to a combustion flame diffusion position of the combustion chamber and controlling the oxygen to support the combustion to a turbulent flow combustion flame region of the combustion chamber. The device and the method adopt natural solar energy to generate direct current and to electrolyze water so as to generate the hydrogen and the oxygen which are used to enhance the combustion ratio of the combustion chamber, thus achieving the effects of energy saving and emission reduction.

The invention discloses a system and a process for treating incineration fly ash through synergism of thermal desorption and carbon neutralization. The system comprises a dioxin thermal desorption device, a water washing dechlorination device, a multi-stage carbon neutralization device, a solid-liquid separation device, a heavy metal solidification device, an evaporative crystallization salt separation device and a heat exchange device; a CO2-containing medium circulating in the multi-stage carbon neutralization device can react with calcium and magnesium in washed slurry to generate carbonate, so that an agentia can be replaced to implement hardness regulation, the usage amount of the agentia is reduced, and meanwhile, the aim of carbon emission reduction is fulfilled; and a process route of dioxin anaerobic thermal removal, water washing dechlorination, CO2 decalcification and magnesium removal, heavy metal solidification and evaporative crystallization salt separation is adopted, so that a large number of reagents do not need to be added to remove calcium and magnesium ions when the washed slurry is treated, but the pH value of the washed slurry is neutralized through the CO2-containing medium, thereby greatly reducing the adding amount of a hardness adjusting agentia, reducing the operation cost, effectively reducing the difficulty of evaporative crystallization salt separation and improving the quality of recovered industrial salt.

The invention discloses a solar-assisted reheat overheating thermal power generation system and an emission reduction dilatation method. The solar-assisted reheat overheating thermal power generation system comprises a boiler, a flue gas overheater, a solar overheater, a solar reheater, a flue gas reheater, a turbine, an electric generator, condensers and a circulating pump. The boiler, the flue gas overheater, the solar overheater, the turbine, the condenser, the other condenser and the boiler are connected in sequence to form a loop. A turbine low-pressure cylinder inlet, the solar reheater, the flue gas reheater and a turbine high-pressure outlet are connected in sequence to form a loop. The turbine is connected with the electric generator. According to the solar-assisted reheat overheating thermal power generation system and the emission reduction dilatation method, solar heat storage heat exchangers serve as the reheaters and the overheaters, the overheating surfaces and the reheating surfaces of an existing thermal power generation system are increased, partial functional replacement of coal by solar energy is achieved, the purposes of emission reduction and dilatation are achieved, and the purposes that the solar energy is economically utilized and emission by existing power stations is lowered are achieved.

The present invention relates to method of fixing CO2 with cinder from refuse incineration, and belongs to the field of greenhouse gas treating technology. The method is to introduce greenhouse gas CO2 into some container holding cinder and capable of vibrating or turning, so that CO2 generates carbonating reaction with small amount of heavy metal and great amount of lime in the cinder containing water in 10-50 % to form stable compound. The reaction time is over 2 hr, and the granularity of the cinder is below 212 micron. The said method can convert CO2 and cinder into harmless matter, has low cost and may realize mechanized operation.

A short-process steelmaking method based on a converter is carried out according to the following steps of a, preparation of primary smelting molten steel, b, preparation of a temperature increasing agent, c, converter operation, d, operation after the converter, and e, treatment outside the converter. According to the short-process steelmaking method based on the converter, aiming at the characteristics of existing converter steelmaking, the advantages of long-process steelmaking of the converter and short-process steelmaking of an electric-arc furnace are taken into account simultaneously, another way is found, the primary smelting molten steel is produced by adopting an electromagnetic induction heating furnace, the converter is utilized to conduct secondary smelting operation on the primary smelting molten steel, meanwhile, a certain amount of the temperature increasing agent is added into the converter bottom according to the temperature of the primary smelting molten steel put into the converter and the adding amount of steel scrap into the converter, in the premise of ensuring heat balance of a converter system, and the molten steel yield and quality, the converter omits steelmaking through blast furnace molten steel, and whole scrap steel smelting through the converter is achieved. By adopting the short-process steelmaking method based on the converter, the molten steelyield and quality can be ensured in the premise of normal production, and meanwhile, the purposes of reducing pollution and reducing emission are achieved.

The invention discloses a sulfur hexafluoride recovery device. The device comprises a sulfur hexafluoride electrical-unit interface, a recovery container, and a pressure regulating valve, a compressor inlet valve, a compressor, a condenser inlet valve, a condenser and a condenser outlet valve which are successively arranged between the sulfur hexafluoride electrical-unit interface and the recovery container, wherein a vacuum-gauge bypass is arranged between the sulfur hexafluoride electrical-unit interface and the pressure regulating valve, and comprises a vacuum gauge and a vacuum-gauge control valve connected with the vacuum gauge; a vacuum-pump bypass is arranged between the pressure regulating valve and the compressor inlet valve, and comprises a first vacuum pump and a first vacuum pump inlet valve connected with the first vacuum pump; and a negative pressure recovery pipeline is parallelly connected with the two ends of the compressor inlet valve. The sulfur hexafluoride recovery device provided by the invention realizes replacement of sulfur hexafluoride used for power grid GIS and achieves a purpose of reducing greenhouse gas emission. Moreover, the invention also provides a sulfur hexafluoride recovery vehicle.