42results about How to "Increase pyrolysis rate" patented technology

The present invention relates generally to the thermal conversion of biomass. Processes are disclosed for converting algal biomass to condensable vapor intermediates such as pyrolysis oil by means of pyrolysis in a reactor comprising at least one auger. The intermediates may be further processed for production of renewable hydrocarbon fuels. The disclosed processes assist in preventing premature devolatization of algal biomass during pyrolysis, thereby increasing efficiency and commercial feasibility.

The invention relates to a small-scale municipal sludge and household waste synergetic incineration treatment method. The small-scale municipal sludge and household waste synergetic incineration treatment method comprises a municipal sludge incineration system, a household waste synergetic treatment system, a waste heat recycling device and a smoke purifying system. The municipal sludge incineration system comprises a sludge feeding device, a sludge drying machine and a sludge incineration device which are sequentially connected in series. The household waste synergetic treatment system comprises a waste feeding device and a waste pyrolysis gasification furnace which are connected in series. The gas outlet end of the waste pyrolysis gasification furnace communicates to the sludge incineration device, and generated pyrolysis gasification gas is introduced into an assistant combustion device through a draught fan. The waste heat recycling device is a waste heat boiler, the waste heat boiler is used for generating steam by heating boiler feed water, the steam communicates with a turbine generator set, the turbine generator set utilizes the steam generated by the waste heat boiler through absorbing heat to generate electricity, the electricity is used for auxiliary power supply supplementation of the municipal sludge incineration system and the household waste treatment system. First-grade exhausted steam of the turbine generator set is conveyed into the sludge drying machine to be used as a heat source for drying the sludge. The smoke generated after sludge incineration is processed by the smoke purifying system and is discharged after reaching standards.

An acid leaching ore pulp liquid drying pyrolysis device comprises an outer shell, ore pulp liquid pyrolysis disc sets arranged in the shell, a feeding pipe, a scraping knife, a steel brush, a material absorption device, a heat source system and a transmission device, wherein the feeding pipe, the scraping knife, the steel brush and the material absorption device are used in cooperation with the disc sets and arranged in the shell. The acid leaching ore pulp liquid drying pyrolysis device has the beneficial effects that compared with traditional liquid material drying equipment, the device is of a vertical structure, space arrangement is small, the material contact superficial area is enlarged, the drying pyrolysis efficiency is improved, and energy consumption is reduced; innovation is carried out on the basis of a traditional disc drying machine, an outer jacket type and disc hollow inner cavity dual heating system is adopted, the pyrolysis rate of pulp is increased, meanwhile, pulp liquid pyrolysis discs can rotate intermittently, other auxiliary components such as the scraping knife and the steel brush do not rotate, the number of rotating components is small, the device operating stability is good, and power consumption is low; and a dust suction manner is adopted by dry materials, and compared with a scraper blade chute structure, discharging is simple and thorough.

The invention discloses a pyrolysis device for processing desulfurization waste liquid in a partial oxidation environment. The pyrolysis device comprises a pressure-bearing housing, a jacket, an insulating layer and a refractory brick which are arranged from outside to inside and connected together, and a gas separation section I, a spray pyrolysis section II, a mixed flow pyrolysis section III, an inactive salt pyrolysis section IV and a pyrolysis salt chilling section V are communicated from top to bottom to treat the desulfurization waste liquid in the partial oxidation environment. The device adopts a segmental treatment mode, so that decomposition of aromatic compounds and organic matters in the desulfurization waste liquid is ensured in the partial oxidation environment, COD and sulfides in the generated wastewater are reduced, meanwhile, pyrolysis of the inactive salt in the desulfurization waste liquid in the reducing atmosphere is ensured; therefore, the pollution problem of the desulfurization waste liquid is thoroughly solved and effective components in the desulfurization waste liquid can be recycled.

The invention belongs to the field of solid waste treatment, and particularly discloses a multi-stage crushing intelligent treatment device and method for high-water-content slag-state solid waste. The multi-stage crushing intelligent treatment device comprises a multi-stage crushing and drying module, a thermal cracking reaction module and a negative feedback control module, wherein the multi-stage crushing and drying module comprises multi-stage crushing and drying units connected in sequence. Each crushing and drying unit comprises a crusher and a dryer which are connected, wherein the crusher is used for crushing and granulating the slag-state solid waste, and the dryer is used for drying and dehydrating the slag-state solid waste. The thermal cracking reaction module comprises a thermal cracking reactor, wherein the thermal cracking reactor is connected with the last-stage dryer and is used for carrying out thermal cracking reaction on the crushed and dried slag-state solid waste.The negative feedback control module is used for monitoring the quality of cracking oil and cracking slag, controlling the working frequency and power of the crushers and further controlling the thermal cracking reaction degree. According to the multi-stage crushing intelligent treatment device, the intelligent treatment of the slag-state solid waste is realized, the treatment efficiency and thequality of cracking oil and cracking gas are improved, and meanwhile, the energy consumption is reduced.

The invention discloses a permeation fusion method for preparing a charcoal-based urea fertilizer. The method comprises the following steps: raw material preparation; permeation fusion of charcoal andurea; and rapid cooling for forming the fertilizer. The main fertilizer preparation method is characterized by preheating urea powder and charcoal powder, the temperature of a system of the urea powder and charcoal powder is controlled to reach a urea melting temperature in order to realize the complete permeation fusion of the molten urea and the charcoal powder, and the charcoal-based urea fertilizer is finally obtained through cooling. The method has the advantages of adaption to different charcoal kinds, easiness in adjustment and control of the ratio, high charcoal fertilizer shaping rate, moderate mechanical strength, high stability, easiness in combination with an existing urea production technology to realize in situ shaping, certain promotion application industry foundation, andwide prospect. The method can be well combined with an existing urea shaping device in situ during the preparation, so the shaping time is short, the efficiency is high, the shaped product contains asmall amount of water, the particle size of the product is convenient to regulate and control, and the strength of the product is 50 N or more.

The invention discloses a urea backmixing and pyrolysis apparatus applicable to a SCR denitration system and a pyrolysis method. The apparatus comprises a tower body; the tower body is provided with, from top to bottom, a combustion-supporting wind pipeline, an inlet variable-diameter section, a pyrolytic reaction section, an outlet variable-diameter section and an outlet pipeline; the pyrolytic reaction section is provided with a spray gun layer, a compensation wind pipeline layer and a gas flow equalizing plate from top to bottom; the number of the spray gun layer is at least one; and the spray gun layer is provided with a plurality of spray guns used for spraying an atomized urea solution, the plurality of spray guns are uniformly and radially distributed on the tower wall of the pyrolytic reaction section, and the spraying direction of each of the spray guns downwardly extending along the axial direction of the pyrolytic reaction section. According to the invention, the urea solution is mixed with combustion-supporting wind for primary pyrolysis and then with compensation wind for secondary pyrolysis, so the mixing degree of the urea solution and hot gas is promoted and generation of urea deposit and crystal is prevented; thus, the decomposition efficiency of the urea solution is improved.

The invention provides an exothermic catalytic combustion method for a pyrolysis gasification submelting furnace under pure oxygen conditions, which is characterized in that pure oxygen is directly introduced into the pyrolysis gasification submelting furnace for pyrolysis after the ignition. During the pyrolysis, catalysts, namely magnesium powder, aluminum powder or a mixture of the magnesium powder and the aluminum powder is added from the furnace bottom, and the adding amount of the catalysts is between 0.1 and 1.0 kg for each ton of treated substance. During the pyrolysis gasification, the pressure in the furnace is adjusted by adjusting the opening degree of a rectification mechanism to ensure that the pressure inside the pyrolysis furnace is stable. The method has the advantages of low cost, energy conservation, and environmental protection.

A self-weight spiral progressive type high-efficiency and energy-saving biomass pyrolysis furnace device comprises a pyrolysis furnace and an air cooler, a closed cavity is formed between the outer box body (16) and the inner box body (17) of the air cooler, a closed cylindrical shell (18) is arranged in the inner box body (17), a plurality of layers of air cooling flow deflectors (19) are arranged between the inner box body (17) and the cylindrical shell (18), an opening at one end of every air cooling flow deflector (19) is communicated with the inner chamber of the cylindrical shell (18), and an opening at the other end of the air cooling flow deflector (19) is communicated with the cavity between the outer box body (16) and the inner box body (17); and an inner cylinder (2) and an outer cylinder (3)are arranged in the inner part of the furnace body (1) of the pyrolysis furnace, a conical distributor (4) is arranged at a position, corresponding to the charging port of the furnace body (1), of the top of the inner cylinder (2), and a pyrolysis gas secondary pyrolysis tube (5) is arranged in the inner cylinder (2). The device has the advantages of heat transfer and interaction, high heat utilization efficiency, and realization of cascade utilization of energy.

The invention provides a feeding method of coal-oil slurry with different concentrations in direct liquefaction of coal hydrogenation. The feeding method of the coal-oil slurry with different concentrations in direct liquefaction of coal hydrogenation includes the steps of reducing the ratio of solvent oil to coal for coal blending slurry, completing the preparation of low-viscosity heated dilutecoal slurry LCF-LT1 that usually contains a hydrogen donor during swelling process, allowing the low-viscosity heated dilute coal slurry LCF-LT1 to act as a dilutant and a heat carrier in the first thick coal slurry mixing process M1, directly heating high pressure first thick coal slurry with HCF1-PF as the first mixing coal slurry M1P of a temperature M1TK, best making the temperature of HCF1-PFrapidly exceed a viscosity-temperature peak area caused by temperature rise, rising the temperature M1P to near AR reaction temperature of a reaction process, such as 330-450 DEG C in the first mixing coal slurry heating process M1P-HX, then entering the direct liquefaction process of coal hydrogenation AR to conduct the direct liquefaction process of coal hydrogenation, performing tandem repeatuse of the above-mention concepts, adding 2 or multi-channel thick coal slurry to hot dilute coal slurry step by step, and then forming a combined heating and conveying process of multi-channel high coal concentration oil coal slurry.

The invention discloses a device and method for catalyst-regenerable high-temperature catalytic pyrolysis of domestic garbage and hydrogen filtering. The device includes a fluidized bed pyrolysis furnace, microwave generators, a catalyst regenerable catalyst bed, a combustion furnace and a cyclone separator. The bottom of the fluidized bed pyrolysis furnace is provided with a gas inlet. The microwave generators are arranged on the side wall of the fluidized bed pyrolysis furnace and the bottom or the side wall of the catalyst regenerable catalyst bed. An inlet of the cyclone separator is connected to a pyrolysis gas outlet of the fluidized bed pyrolysis furnace, the bottom of the cyclone separator is connected to the lower part of the fluidized bed pyrolysis furnace, and a gas outlet of the cyclone separator is connected to the catalyst bed. A gas outlet of the catalyst bed is connected to the combustion furnace. Through the device and the method, microwave-assisted high-temperature pyrolysis of domestic garbage, catalyst regeneration and hydrogen filtration can be achieved, the catalytic pyrolysis efficiency can be increased, external energy supply cab be reduced, energy is savedwhile achieving resource utilization of domestic garbage, the service lifetime of the device can be effectively prolonged, and the device and the method are economical and environmentally friendly.

The invention provides a method for catalyzing oriented conversion of cellulose into a composite carbon source by using a nickel-doped copper-aluminum hydrotalcite catalyst. The catalyst is a three-metal mixed oxide catalyst, copper-aluminum hydrotalcite is used as a skeleton, nickel atoms are located on a specific copper-aluminum laminate structure, and the catalyst has rich acidic and alkaline catalytic sites. The nickel-doped copper-aluminum hydrotalcite catalyst can be used for catalyzing oriented conversion of cellulose into the composite carbon source (wherein crude methanol, levoglucosenone and carboxylic acid are recovered). The nickel-doped copper-aluminum hydrotalcite catalyst provided by the invention is simple in preparation process and beneficial to industrialization, and has the advantages of complete crystal phase structure, multiple acid-base catalysis sites, high catalysis efficiency, strong anti-coking performance and good stability; and when the catalyst is used for catalyzing pyrolysis of the cellulose, a function of directionally converting the cellulose into the composite carbon source can be realized, and the yield and the product value of the composite carbon source are improved.

The invention relates to a self-heating vertical axial flow roller ablation pyrolytic reaction device, and belongs to the technical field of renewable energy utilization. The device comprises a shell and a reaction cylinder arranged in the shell, a rotating shaft is arranged in the reaction cylinder, the upper end of the rotating shaft is connected with a variable frequency motor through a belt, the rotating speed of the rotating shaft can be adjusted, a first-stage spiral feeder and a second-stage spiral feeder are arranged outside the shell, the discharging end of the first-stage spiral feeder is communicated with the feeding end of the second-stage spiral feeder, and the discharging end of the second-stage spiral feeder is communicated with the upper part of the reaction cylinder. The device has the beneficial effects that the pyrolysis efficiency is improved, pushing of carrier gas and heating of a heat carrier are not needed in the reaction process, and the heating and cooling loads of the carrier gas are greatly reduced. Self-heating in the pyrolysis process is achieved, and effective utilization of energy is fully achieved. Different taper angles can adapt to the change of the size of the material, powdery, granular and other biomass raw materials can be pyrolyzed, and gas-solid separation and biomass pyrolysis can be better achieved.

The invention discloses a waste plastic pyrolysis carbonization system, and relates to the technical field of waste plastic treatment equipment.The waste plastic pyrolysis carbonization system comprises an incinerator body and further comprises a crushing assembly, the crushing assembly comprises a feeding mechanism arranged at the top of the incinerator body and crushing boxes, multiple groups of crushing mechanisms are arranged between the crushing boxes, the feeding mechanism is connected with the crushing boxes, and the crushing boxes are connected with the crushing mechanisms; the crushing mechanism is used for conveying waste plastics to be pyrolyzed and incinerated into the crushing box and crushing the waste plastics through the crushing mechanism, the incinerator body is used for incinerating the crushed waste plastics, and the dust removal assembly is used for adsorbing and filtering dust generated during crushing in the crushing box; the waste plastics subjected to preliminary crushing in the crushing box fall into the incinerator body under the action of gravity to be subjected to incineration pyrolysis treatment, compared with traditional waste plastic pyrolysis equipment, the waste plastics are subjected to pre-crushing treatment before pyrolysis, and then the waste plastics with the large size and the high hardness are refined so that pyrolysis can be conveniently carried out, and the waste plastic pyrolysis efficiency can be improved. And the pyrolysis rate is improved.

The present invention provides a microwave hydrothermal charcoal decoupling chemical chain gasification method for controlling the quality of synthesis gas. The operation steps are as follows: A. Particle manufacturing: the user selects biomass raw material in advance, and then the user puts the biomass raw material into the reactor , and inject equal proportions of water into the reactor, and then the user uses a booster pump to pressurize the reactor, so that the biomass raw material and water undergo a hydrothermal reaction in the reactor to form hydrothermal charcoal particles. The present invention can regulate the product components of microwave hydrothermal charcoal gasification in a directional way through the process cooperation of particle manufacturing, oxygen carrier gasification reaction domain, reaction kinetics, reactor construction, interactive influence system and amplification law, thereby realizing microwave hydrothermal carbon gasification. The full conversion effect of thermally coupled chemical looping gasification technology to high value-added HMF and syngas reveals the directional reorganization mechanism of oxygen, carbon and hydrogen in the gasification reaction, and finally improves the oxygen, carbon and hydrogen in the hydrothermal char gasification reaction. Hydrogen regulation of synthesis gas quality.