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141results about How to "High calorific value" patented technology

Biomass compact briquette fuel and preparation method thereof

The invention discloses biomass compact briquette fuel and a preparation method thereof. The biomass compact briquette fuel is prepared from the following raw materials in parts by weight: 50-80 parts of wheat straw, 35-45 parts of corncobs, 20-30 parts of pine needle, 10-15 parts of sawdust, 5-10 parts of traditional Chinese medicine residue, 8-14 parts of fish meal, 12-18 parts of palm shell, 4-8 parts of sawdust, 5-10 parts of camellia seed cake, 7-14 parts of soybean oil, 6-12 parts of bone meal, 10-15 parts of coconut coir and 15-20 parts of peanut shell. The biomass compact briquette fuel is prepared from the multiple raw materials such as the wheat straw, the pine needle, the sawdust and the traditional Chinese medicine residue by grinding, mixing, drying, compressing, cooling and packaging, so that the problems of great demand for one raw material and difficulty in collection of the single raw material can be solved; the heat value of the fuel can also be obviously increased; the unit heat value of the fuel can reach 6000 kilocalorie; when being burned, the fuel is smokeless, tasteless, clean and environment-friendly; and the combustion ratio of the fuel can reach above 98%, the using cost of the fuel is far lower than that of petroleum energy sources, and the biomass compact briquette fuel can be widely applied to industrial and agricultural production, electricity generation, heat supply and heating, boilers and the like and has a wide application prospect.
Owner:MENGCHENG SHENGYAN STRAW

Technology and equipment for preparation of synthetic gas by two-stage high temperature biomass gasification

InactiveCN102226107AImprove equipment production capacityHigh calorific valueProductsReagentsTarCoal tar
The invention relates to a technology and equipment for preparation of synthetic gas by two-stage high temperature biomass gasification. Gasification in the technology is carried out in two stages, namely, primary gasification and high temperature gasification; biomass combustion gas, unreacted solids, tar and the like obtained in the primary gasification are directly delivered into a high temperature vapourizing furnace at high temperature and steam and air are also delivered into the vapourizing furnace so as to carry out high temperature gasification, thereby enhancing thermal efficiency, conversion rate of carbon and cracking rate of tar. In the process of the preparation, heat energy is self supplied, and heat is recovered to improve thermal efficiency; a thermal value of prepared synthetic gas can reach 7 to 8 MJ/m<3>. Equipment for realizing the technology comprises a biomass feed unit, gasification reactors, a dust collector, a heat reclaim unit, a washing unit, an air compressor, etc. The technology and equipment provided in the invention can be used to convert biomass raw materials like agricultural waste into synthetic gas with a high thermal value and low content of tar and are applicable to heat supply by biomass combustion gas, power generation by combustion gas or synthesis of liquid fuels.
Owner:INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY

Catalyst and treatment method for upgrading tar by using catalyst

The invention relates to a catalyst and a method for treating tar by using the catalyst. The catalyst is an alkali metal salt loaded catalyst and is prepared through the following steps: dropwise adding an alkali metal salt solution on a carrier particle to uniformly soak the particle by the solution, drying and roasting the particle, and cooling the roasted particle to obtain the alkali metal salt loaded catalyst. The method for treating the tar comprises the following steps: mixing the tar and small molecule alcohol, carrying out high-temperature gas-phase catalytic conversion treatment, and subjecting the creosote ingredient in the tar and the small molecule alcohol to etherification reaction by using the catalyst provided by the invention to convert the creosote in the tar to aromatic ether. The method is conductive to the increase of the caloricity and oil phase solubility of the tar and the reduction of the acidity and corrosivity of the tar. The catalyst preparation technology and tar treatment technology provided by the invention are simple and efficient, the raw material cost and the running cost are low, and the industrialized production is easily achieved. The raw materials and technological processes for the catalyst preparation and tar treatment are pollution-free and environment-friendly.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI

System for drying and treating sludge by utilizing afterheat to generate high-temperature circulating air

The invention relates to a system for drying and treating sludge by utilizing afterheat to generate high-temperature circulating air. The system comprises a sludge drying machine, wherein a sludge spiral conveying core shaft is arranged in the sludge drying machine; a hot circulating air outlet is formed on one side of the sludge drying machine; a sludge feed port is formed at the upper end of one side of the sludge drying machine; a sludge discharge port and a hot circulating air inlet are formed on the other side of the sludge drying machine; and a dried waste gas outlet of the sludge drying machine is formed above one side near the sludge feed port. The system is characterized in that: the dried sludge discharged from the sludge discharge port is conveyed to the feed port above a thermolysis furnace through a conveying belt and an elevator; a smoke outlet of the thermolysis furnace is communicated with a dioxin combustion chamber for decomposing dioxin in the smoke; a high-temperature smoke outlet of the dioxin combustion chamber is connected with a heat exchanger through a high-temperature pipeline; and the cooled smoke is led to a power spray device and a bag-type dust remover to be treated and then is discharged to air through a chimney. The system can heat air by utilizing the high-temperature smoke generated in the sludge burning process to indirectly dry sludge, can recycle hot air, and is economical, practical, energy-saving and environment-friendly.
Owner:福建庄讯环保科技有限公司

Method for comprehensive treatment of wastewater and sludge gas utilization of cane sugar factory

The invention discloses a method for treating cane sugar factory wastewater comprehensively and using methane, which comprises the following steps: removing fibers and depositing coarse dregs in pretreated bagasse spray water, bagasse washing water, lime sludge filtered water, part of cooling water, papermaking alkaline wastewater, alkali reclaiming vaporization condensation water, and part of paper machine wastewater after reclaiming white slime of a cane sugar factory; mixing and properly heating all the water and delivering the mixture into an anaerobic reactor to perform anaerobic reaction; desulfurizing, decarburizing, purifying, filtering and compressing the obtained methane, and using the methane for heating a paper machine; and performing aerobic biochemical treatment on the sewage generated by the reaction in the anaerobic reactor so that the sewage reaches the discharge standard and is discharged, wherein sludge can be applied to preparing an organic compound fertilizer. The method can treat the sewage of the cane sugar factory comprehensively, can reclaim part of energy generated in the process of the wastewater treatment and apply the energy to production, thereby greatly reducing the production cost and bringing about better economic benefits and social benefits.
Owner:GUANGXI YUEGUI GUANGYE HOLDINGS CO LTD

Step-by-step low-temperature carbonization system of brown coal

The invention relates to a step-by-step low-temperature carbonization system of brown coal. The step-by-step low-temperature carbonization system comprises a drying stage, a carbonization stage, a waste heat recovery stage and a cooling stage, wherein coal is heated to 180-300 DEG C under the condition of isolating air through a gas heat carrier so that more than 90% of all water, crystal water and partial oxygen-containing functional groups influencing the heat value of the coal are removed and heating components of the coal are enriched; and the coal is continued to be heated to 550-600 DEG C to form semicoked solid, the separated volatile matters are purified and recovered to obtain coal tar and coal gas products, and the high-temperature semicoked solid is subjected to the waste heat recovery stage and is cooled to 60 DEG C to be collected to obtain semicoked products, wherein the obtained semicoked products have the advantages of high heat value, good stability, hydrophobicity and the like. The step-by-step low-temperature carbonization system of the brown coal, disclosed by the invention, has the advantages of simple process, low energy consumption, no need of industrial water, no generation of waste water and no emission of harmful gas, and is a highly-automatically coal treating system for treating a large amount of coal; and each component adopts modularized design and can be matched according to yield requirements.
Owner:CHINA NAT HEAVY MACHINERY RES INSTCO

External-heated and solid heat carrier combined rotary dry-distillation method and device

InactiveCN103589442AReduce the amount of dustHigh calorific valueDirect heating destructive distillationIndirect and direct heating destructive distillationHeat carrierCoal
The invention discloses an external-heated and solid heat carrier combined rotary dry-distillation method and device. The method comprises the steps of mixing a heat carrier and dried/preheated raw coal, and enabling a mixture of the heat carrier and the dried/preheated raw coal to be subjected to dry distillation in a dry distillation furnace, so as to generate hot semicoke and coal gas, wherein one part of the hot semicoke is a semicoke product, one part of the hot semicoke is hot coke granules, and the hot coke granules serve as the heat carrier and are applied to coal gas dedusting after the hot coke granules are heated; smoke generated during semicoke heating is used for drying and preheating raw coal. The device comprises a raw coal preheating and drying oven, a semicoke heating furnace and the dry distillation furnace, wherein the raw coal preheating and drying oven and the semicoke heating furnace are located above the dry distillation furnace, and a material outlet of the raw coal preheating and drying oven and a material outlet of the semicoke heating furnace are communicated with a material inlet of the dry distillation furnace; the dry distillation furnace and the semicoke heating furnace are communicated by a hot coke granule circulating and conveying system; the dry distillation furnace preferably is an external-heated dry distillation furnace. The method and the device, disclosed by the invention, have the advantages that the thermal efficiency is high, the calorific value of the coal gas is high, the dust content is low, and the yield is large; the device is compact in structure and small in floor area.
Owner:CHANGAN UNIV

Method and system for anaerobic digestion biogas generation by recycling of household garbage

The invention discloses a method and a system for anaerobic digestion biogas generation by recycling of household garbage. The method includes steps: (1) crushing; (2) pressing; (3) dry-basis treatment; (4) wet-basis treatment; (5) hydrolytic acidification; (6) anaerobic fermentation; (7) anaerobic fermentation biogas treatment, to be more specific, delivering biogas generated by anaerobic fermentation to a biological desulfurization device through a pipeline to remove hydrogen sulfide; delivering biogas without hydrogen sulfide to a gas storage through a pipeline to realize temporary storage, wherein one parallel circuit of the gas storage is in connection with a torch to realize incineration treatment of excessive biogas, and the other parallel circuit of the gas storage is delivered to a biogas utilization device. The method and the system for anaerobic digestion biogas generation by recycling of household garbage have advantages that the problem of limitation of dry anaerobic and aerobiotic treatment for degradation of household garbage is solved; conversion of the household garbage into biogas is realized, simplicity in operation is achieved, and the system is stable and easy for engineering popularization and application.
Owner:SHENZHEN LEO KING ENVIRO GRP CO LTD

Industrial fuel gas production system and method

The invention provides an industrial fuel gas production system and method. The system comprises a transmission and distribution unit and a decarburization unit. A gas outlet of the transmission and distribution unit is used for communicating with a gas inlet of an underground coal gasification system. The transmission and distribution unit is used for preparing a gasifying agent and transmitting the gasifying agent to the underground coal gasification system. The gasifying agent contains oxygen with the preset concentration. A gas inlet of the decarburization unit is used for communicating with a gas outlet of the underground coal gasification system. The decarburization unit is used for receiving gas output by the underground coal gasification system and removing carbon dioxide with the preset concentration in the gas. According to the industrial fuel gas production system, the gasification agent containing the oxygen with the preset concentration is used for gasifying a coal seam, and the heat value of coal gas can be increased; the purpose of further increasing the heat value of the coal gas is achieved by removing the carbon dioxide in the coal gas through the decarburization unit; and meanwhile, the emission load of carbon dioxide in the combustion process of the coal gas is decreased, and accordingly the environment is protected.
Owner:徐斌

Electromagnetic induction heating body and electromagnetic water heater adopting electromagnetic induction heating body

The invention relates to an electromagnetic induction heating body and an electromagnetic water heater adopting the electromagnetic induction heating body. The electromagnetic induction heating body comprises a flat-wise inductive coil fixed on a coil support, a thermal insulation micro-crystal ceramic body which is matched with the flat-wise inductive coil in an adaptive mode and heating units which are formed by metal heating bodies. The number of the heating units is two. The electromagnetic induction heating body further comprises magnetic shielding metal sheet materials. The two heating units are oppositely arranged relative to the magnetic shielding metal sheet materials. The electromagnetic water heater adopting the electromagnetic induction heating body further comprises an annular metal tube winding and a whole metal thermal conductor, wherein the annular metal tube winding is arranged outside the electromagnetic induction heating body and provided with a water inlet and a water outlet. The annular metal tube winding, the whole metal thermal conductor and the metal heating bodies are connected. By the adoption of the electromagnetic induction heating body and the electromagnetic water heater adopting the electromagnetic induction heating body, heating efficiency of the electromagnetic water heater can be improved, and the size and the weight of the electromagnetic water heater can be reduced. The electromagnetic induction heating body and the electromagnetic water heater adopting the electromagnetic induction heating body can be widely applied to the field of the electromagnetic water heater.
Owner:黄山特耐电气有限公司
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