37results about How to "Calorific value" patented technology

A method of producing an upgraded bio-oil from a wet biomass that includes heating the wet biomass at a first temperature and a first pressure for a time period ranging from 10 to 200 minutes to form a crude bio-oil. The first temperature ranges from 200 to 400° C. and the first pressure ranges from 0.1 to 25 MPa, with the proviso that at least a portion of the water present in the wet biomass remains in a liquid phase throughout the step of heating to form the crude bio-oil, and the first temperature and pressure are below super-critical conditions for water. The method also includes heating the crude bio-oil and the water at a second temperature and a second pressure to form the upgraded bio-oil. Some water remains in the liquid phase or in a super-critical fluid phase throughout the step of heating to form the upgraded bio-oil.

The invention relates to a gradually-expanding premixing porous medium combustor for combusting biomass gasification gas. The combustor is provided with gradually-expanding pipes, wherein a porous medium with catalytic action is filled in each gradually-expanding pipe; a heater is coated outside each gradually-expanding pipe; each gradually-expanding pipe is wholly embedded into a thermal insulating layer; a capacity expansion chamber is formed at an inlet of each gradually-expanding pipe; a tempering prevention piece and a flow equalization plate are arranged in each capacity expansion chamber; and an inlet of each capacity expansion chamber is connected with a premixing tube. Flame deflection and other unstable combustion phenomena can be avoided, flames can be effectively prevented from being blown out of the combustor, the power of the combustor is improved, the working range of the combustor is expanded, and the load and working condition changes of the combustor are met. Moreover, the combustor has a function of adjusting gas flow, and parallel gradually-expanding pipes are prevented from being shut down due to over-low load or prevented from being subjected to over-high load; and the biomass gasification gas can be subjected to super adiabatic combustion in the combustor, the lean flammability limit of fuel is greatly expanded, and the fuel with ultralow heat value can be stably combusted. Meanwhile, the flame area is widened, the combustor contributes to accelerating cracking combustion of tar, and the combustion efficiency is improved.

The invention discloses a weight-losing health food. The weight-losing health food is prepared from the following components in percentage by weight: 10%-28% of lindera strychnifolia leaf extract, 4%-13% of malic acid, 3%-8% of stevioside, 12%-32% of lotus leaf powder, 10%-34% of fruit and vegetable powder and 20%-40% of inulin. The raw materials of the weight-losing health food are scientific in composition, reasonable in cooperation, natural in components and proper in use amount, and the weight-losing health food is convenient to take, has a remarkable weight losing effect and has no obvious side effects, so that the weight-losing health food is the ideal weight-losing health food.

The invention relates to a method for preparing a novel environment-friendly water coke slurry fuel by using the resource recycling technology of combining oily water and water coke slurry. The novel environment-friendly water coke slurry fuel comprises the following raw material components in percentage by weight: 62 to 72 percent of petroleum coke powder of which over 80 percent of the petroleum coke powder passes a 200-mesh sieve, 28 to 38 percent of oily water and 0.5 to 1.5 percent of dispersant, wherein the components are mixed and stirred at normal temperature under normal pressure to form high-dispersion stable slurry. The method has the advantages of simple operation, low energy consumption and low cost; the prepared water coke slurry has good fluidity and strong stability, does not need to add a stabilizing agent, fully meets the requirement of a boiler for fuel combustion, realizes the resource recycle of the oily water, reduces the treatment cost of the oily water, and has good market prospect and popularization value.

The invention relates to a fuel for a catering stove and a preparation method of the fuel. The fuel for the catering stove comprises the following components in percentage by weight: 20-40% of Fischer-Tropsch synthetic wax, 30-50% of waste grease, 10-20% of biodiesel and 5-10% of polyoxymethylene dimethyl ether. The problems that alcohol-based fuel is low in flash point and heat value, a stove needs to be modified, tail gas emission pollutants are high in the combustion process of diesel oil and other fuel, black smoke exists, carbon deposit exists, and the price is high are solved. The fuel for the catering stove is extremely low in sulfur content, can be stably combusted in the catering stove, and is high in heat value, free of dust emission, black smoke and carbon deposition during combustion and low in atmospheric pollutant emission, so that the cleaning frequency of a stove hearth and the maintenance frequency of the stove are reduced.

The invention discloses a method for preparing a high-efficiency biomass fuel by using graphene. The method comprises a first step of adding 26-28 parts of modified graphene powder into a mixed solution of 20 parts of tetrahydrofuran and 80 parts of absolute ethyl alcohol, carrying out ultrasonic dispersion for 15-25 min, then adding 34-38 parts of a pretreated base material and 6-12 parts of algae-lysing microorganism particles, increasing a stirring rotation speed to 75-85 r/min, carrying out stirring for 35-45 min, then adding 3-5 parts of oleic acid and 2-4 parts of rosin, and continuing stirring for 15-25 min so as to obtain a premix. According to the method for preparing the high-efficiency biomass fuel by using graphene in the invention, graphene is used as the base material for thebiomass fuel and cooperatively used with other auxiliary material; and research results show that the combustion performance and stability of the biomass fuel are significantly improved.

The invention relates to a placenta oligopeptide probiotic composite preparation and a preparation method thereof. The composite preparation consists of main raw materials of animal (pig, cattle and sheep) placenta extract oligopeptide and probiotics, as well as medical auxiliary materials. The specific preparation method comprises the following steps of extracting placenta oligopeptide from healthy animal placentas through a series of integrated technologies of hydrolyzing, ultrafiltration, nano-filtration, freeze drying and the like, then weighing the following raw materials in percentage byweight of 35-70% of placenta oligopeptide freeze-dried powder, 5-20% of probiotic freeze-dried powder, 2-10% of sodium alginate, 15-20% of starch and 8-15% of fructo-oligosaccharide, performing sufficient and uniform mixing to obtain granules, directly bagging the granules or enabling capsules to be filled with the granules. According to the placenta oligopeptide probiotic composite preparation disclosed by the invention, the animal placenta extract oligopeptide and the probiotics are perfectly combined, and the placenta oligopeptide and the probiotics exert synergistic effects, so that the balance of intestinal microecology can be adjusted, the intestinal tract environment is purified, digestion and absorption of nutrient substances by organisms are promoted, the immune function of the organisms can be strengthened, and the placenta oligopeptide probiotic composite preparation is a purely-natural composite immune adjustment agent.

The invention belongs to the field of energy utilization, and relates to a device and technique for preparing biological oil by microalgae hydrothermal liquefaction by using power plant steam turbine extraction steam. The power plant steam turbine extraction steam is high-temperature high-pressure steam, and the quaternary extraction steam is used for hydrothermal liquefaction reaction of microalgae. The quaternary extraction steam of the steam turbine is divided into two streams, one stream is directly introduced into an inner interlayer of a high-pressure autoclave, and other stream is introduced into an outer interlayer of the high-pressure autoclave as a heat source. In the microalgae hydrothermal liquefaction reaction, the microalgae and ethanol are proportionally fed, a reticular filter layer is arranged inside the high-pressure autoclave, and an HZSM-5 catalyst is arranged. The steam of the power plant steam turbine after applying part of work is fully utilized, the pressure and temperature of the steam are utilized in the technique for preparing biological oil by microalgae hydrothermal liquefaction reaction, the conventional hydrothermal liquefaction technique is improved, the electric heating is utilized to reach the solvent critical value, and abundant energy consumption is lowered, thereby lowering the cost for preparing the biological oil, improving the oil preparation efficiency and enhancing the oil product.

The invention discloses a sludge high-dry dehydration conditioning method. The sludge high-dry dehydration conditioning method comprises the following steps: preparing sludge, polymer ferric salt and plant ashes according to a ratio of parts by weight of 1000:(5-7):(30-50), mixing and stirring the materials, and mechanically filter pressing and dehydrating the mixture to obtain mud cakes, wherein the sludge is from a sewage treatment plant, the moisture content of the sludge ranges from 90% to 99%; the ratio of parts by weight of 1000:(5-7):(30-50) is based on the absolute dry weight of the sludge. The polymer ferric salt and the plant ashes are used as conditioning agents to condition and modify the sludge, so that the cost is low; the moisture content of the mud cakes after dehydration is about 50%, and meets the follow-up treatment requirement; furthermore, the aspects of organic content, calorific value and pH value of the mud cakes are improved.

The invention provides a converter gas mixing device and a method. The mixing device comprises a converter gas branch pipe, a mixed gas pressure regulating unit, a mixed gas branch pipe and a mixed gas main pipe. The mixed gas pressure regulating unit is connected with the mixed gas branch pipe; and the converter gas branch pipe and the mixed gas branch pipe are respectively and independently connected to the mixed gas main pipe. The method comprises the following steps of (1) detecting the content of CO in converter gas; (2) determining the mixing ratio of mixed gas according to the CO content obtained in the step (1); and (3) mixing the mixed gas subjected to pressure regulation with the converter gas. The invention constructs the reasonable and efficient converter gas mixing device, the mixed gas with the proper variety and mixing ratio is determined according to the CO content of the converter gas, the combustion rate and heat value of the fuel are improved,the extensibility of combustion flame is increased, the calcination requirement of a rotary kiln is met, and the product quality of the rotary kiln is stabilized.

The invention discloses a high-performance methanol engine fuel and belongs to the technical field of energy chemistry. The invention aims at providing the high-performance methanol engine fuel with ahigher heat value. The formula of the high-performance methanol engine fuel is characterized by being prepared from methanol, naphtha, amyl nitrate, ethylvinylacetate, high alkalinity barium carbonate, stearyl propylamine, petroleum sodium sulfonate, long-chain fatty acid methyl ester and methyl tertiary-butyl ether. A product disclosed by the invention is mainly applied to an engine of a methanol power vehicle of new energy vehicles. According to the high-performance methanol engine fuel disclosed by the invention, by adopting a variety of excellent auxiliaries, the stability of the methanolfuel is enhanced, ignition is easier and the combustion effect is better; more importantly, the big problem of lower heat value of the methanol fuel is improved; by means of testing, the product disclosed by the invention has a heat value of 1350.75KJ/mol which is far superior to like products in the existing technology. (The heat value of the methanol fuel in the existing technology is normally726.55 KJ/mol).