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3816results about How to "High calorific value" patented technology

Method for preparing methyl alcohol synthesis gas and compressed natural gas from coke oven gas and coal

The invention discloses a method for producing methanol synthesis gas and compressed natural gas by taking coke oven gas and coal as raw materials, and the main steps comprise that purification treatment, transformation treatment, desulfurizing decarburization, pressure swing absorption separation of methane and hydrogen and methane-rich gas compression are carried out to the coke oven gas to prepare the compressed natural gas; and coal gasification reaction, purification treatment, mixing with the hydrogen and fine desulfurization treatment are carried out to the coal to obtain the methanol synthesis gas. The method is based on the characteristics of more hydrogen and less carbon in the coke oven gas and more carbon and less hydrogen in the coal-made methanol feed gas, transforms CO to H2 and CO2 by the transformation treatment after the effective pretreatment to the coke oven gas, and then the H2 and CH4 are separated effectively by a PSA technology so as to be used as the raw materials with higher values, and therefore the method achieves the purpose of comprehensively utilizing the coke oven gas and the coal as the raw materials for producing the methanol synthesis gas and the compressed natural gas, adopts the effective energy in the coke oven gas and the coal to maximum, saves energy, reduces emission and improves the economic benefits.
Owner:SOUTHWEST RES & DESIGN INST OF CHEM IND

Compound amino acid organic fertilizer and production method of compound amino acid organic fertilizer

The invention disclose a compound amino acid organic fertilizer, which is characterized in that the compound amino acid organic fertilizer consists of the following ingredients in parts by weight: 5 to 10 of compound amino acid, 0.3 to 0.5 of microbial yeasts, 16 to 29 of inorganic fertilizers, 5 to 10 of humic acid fertilizers and 0.2 to 1 of trace elements. A production method of the compound amino acid organic fertilizer comprises the following steps that: firstly, compound amino acid water solution, the microbial yeasts and the humic acid fertilizers are respectively prepared, then, inorganic compounds containing boron, copper, iron, manganese and zinc are added into the compound amino acid water solution, and the chelation is carried out at a temperature being 80 to 110 DEG C so that the mixture becomes free-state chelated amino acid salt; after the metering, 10 to 50kg of raw materials are added into each ton of farmyard manure to be mixed, then, the mixed materials are placed into a warehouse for natural stacking and curing for 3 to 5 days and can be pelletized and packed to leave factories. The compound amino acid organic fertilizer can be used as a base fertilizer and an additional fertilizer and belongs to a compound organic fertilizer capable of improving the amino acid content of high-quality fragrant rice and fruit and vegetables, improving the fruit and vegetable quality and improving the sugar content of sugarcanes.
Owner:GUANGXI YUXIN BIOLOGICAL TECH

Preparation method and application method of grape special fertilizer

The invention relates to preparation method and application method of a grape special fertilizer, wherein the preparation method comprises the following steps: preparing an I-type fertilizer by taking the following ingredients in parts by weight: 30-40 parts of urea, 20-30 parts ammonium phosphate, 15-30 parts of potassium sulphate, 1-3 parts of humic acid, 1-3 parts of excrement, 1-5 parts of synergist, 0.1-1.0 part of ferrous sulphate, 0.1-0.8 part of zinc sulfate, 0.1-0.6 part of manganese sulphate, 0.1-0.6 part of borax, 0.1-0.4 part of copper sulfate, 3-7 parts of plaster and 3-13 parts of bentonite; preparing an II-type fertilizer by taking the following ingredients in parts by weight: 7-15 parts of urea, 25-35 parts ammonium phosphate, 35-45 parts of potassium sulphate, 1-3 parts of humic acid, 1-5 parts of excrement, 2-5 parts of synergist, 0.1-1.0 part of ferrous sulphate, 0.1-0.8 part of zinc sulfate, 0.1-0.6 part of manganese sulphate, 0.1-0.6 part of borax, 0.1-0.4 part of copper sulfate, 3-7 parts of plaster and 3-13 parts of bentonite; and blending, spraying, pelleting and drying at lower temperature to obtain the product. The application method of the fertilizer comprises the following steps: taking an organic fertilizer and the II-type fertilizer as a base fertilizer; applying the I-type fertilizer before blossom, applying the II-type fertilizer in the young fruit development period, and meanwhile, respectively spraying monopotassium phosphate and rare earth mixed liquid once on the leaf surfaces; and spraying calcium nitrate or calcium acetate to enhance the storage resistance property before picking.
Owner:新疆满疆红农资化肥科技有限公司

Method for preparing biomass carbon by utilizing agricultural and forestry waste

The invention relates to a method for preparing biomass carbon by utilizing agricultural and forestry waste, belonging to the technical fields of preparation of carbon materials and utilization of biomass resources. The method comprises the following steps of: adopting agricultural and forestry waste as raw materials; under the condition of subcritical water, fully mixing dried biomass materials and deionized water according to the proportion of 1:(10-30); under the protection of inert atmosphere, carbonizing for 2-6 hours at the temperature of 220-250 DEG C; and then carrying out vacuum filtration and hot-water cleaning, and drying to obtain the biomass carbon. The biomass carbon prepared by the invention is coaly carbon material with an aromatic-ring structure, is high in carbon content and calorific value and large in specific surface area, and can be used as a soil conditioner or an absorbent. The method has the advantages that the materials are low in cost and easy to obtain, the process is simple, the operation is convenient, the manufacturing cost is low, the industrial promotion is convenient, and the application range and the application value of biomass resources are further expanded in the aspect of carbon materials.
Owner:BEIJING FORESTRY UNIVERSITY

High-efficiency lignite low-temperature dry distillation quality-enhancing process by using dry distillation coal gas as heat-carrying medium

The invention relates to a low-temperature dry distillation process for coal, in particular to a high-efficiency lignite low-temperature dry distillation quality-enhancing process by using dry distillation coal gas as a heat-carrying medium. The process comprises a coal-preparing flow, a drying flow, a dry distillation flow, a heat source flow, a coal gas and tar processing flow and a semicoke cooling transfer flow; in the process, vapor self-generated by a drying tower is used as a drying medium, the coal gas of a generator is taken as a heat source to heat the self-generated dry distillation coal gas, and serves as a dry distillation medium, and the coal gas of the generator is used as fuel of a hot air furnace; the dry distillation semicoke is cooled in a cooling mode of drying fume exhaust plus semi water spraying; and condensation water is used for coke-quenching water, a gasifier of the coal gas of the generator and a tar cooling agent. The process has the advantages of producing high-index dry coal and dry semicoke, high-heating value coal gas and high-quality tar, having a flawless and high-efficiency energy recycling system, not using outside nature water, hardly discharging water to the outside, saving huge cost for sewage treatment, creating the maximum economic benefits for customers and having quite strong competitive power on economy, technology and market.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Biomass curing-forming fuel and preparation method thereof

The invention discloses a biomass curing-forming fuel. The biomass curing-forming fuel consists of straws, saw dust, coal dust, a combustion improver, a sulfur-fixing agent and a dust-falling agent according to parts by weight, wherein the straw is one or combination of the straw of crops such as rice, wheat, soybean, corn, sorghum, cotton, rape and tobacco, a branch and a bark of trees and shrubs, rice hull, chaff and peanut coat; the combustion improver is one or more of table salt, sodium nitrate, potassium permanganate, potassium oxide, sodium nitrite and sodium hypochlorite and capable of realizing decomposition and combustion supporting at different temperatures; the sulfur-fixing agent is in a manner that sodium carbonate, calcium hydroxide and alkyl alcohol amine compounds are synergistically used and is capable of reducing discharging of sulfur dioxide; and the dust-falling agent is selected from iron sesquioxide and capable of lowering a melting point of ash and reducing dust volume. The biomass curing-forming fuel has the advantages that the combustion efficiency is high, the slag bonding and the soot formation are not generated, the black smoke is little, the fire power strong, the combustion is sufficient, the ash does not fly, the biomass curing-forming fuel is clean and sanitary and the like. The invention further discloses a preparation method of the biomass curing-forming fuel.
Owner:JINAN SANNONG ENERGY TECH

Method and device for preparing formed sludge fuel

The invention discloses a process method for preparing a derived solid fuel by using sludge, and the method comprises the following steps: feeding dehydrated wet sludge with the moisture content of 70-85% and biomass at a weight ratio of 50:(1-10) into a tempering kettle, introducing less water, evenly stirring, adding a tempering agent the mass of which is 0-20% of that of dried solid sludge, stirring for 2-10 minutes continuously, removing most of water by a dehydrator, forming, and naturally drying for 24 hours, thus obtaining the derived sludge solid fuel. The invention also discloses a device for preparing a formed sludge fuel. The device comprises a straw crusher, a feeder, the tempering kettle, the stirrer, the fuel hydrator and a fuel forming machine, wherein the stirrer is positioned at the top of the tempering kettle, a stirring shaft is coincident with the axis of the tempering kettle and inserted into the tempering kettle, the outlet of the straw crusher is connected with the inlet of the feeder, the outlet of the feeder is connected with the inlet of the tempering kettle, the outlet of the tempering kettle is connected with the inlet of the fuel dehydrator, and the outlet of the fuel dehydrator is connected with the inlet of the fuel forming machine.
Owner:JIANGSU XINFA ENVIRONMENTAL PROTECTION TECHCO
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