38results about How to "Fast carbonization" patented technology

The invention relates to a biomass carbonization furnace which comprises a combustion chamber and a carbonization chamber arranged above the combustion chamber, wherein a fuel inlet is arranged at one end of the combustion chamber; a grate and a combustible gas combustion device are arranged in the combustion chamber; the upper part of the carbonization chamber is provided with a feed port of thecarbonization chamber; the bottom part of the carbonization chamber is provided with a discharge port of the carbonization chamber; a raw material circular conveying device of the carbonization chamber is arranged in the carbonization chamber; a drying chamber is also arranged above the carbonization chamber; the upper part of the drying chamber is provided with a feed port and a water vapor outlet of the drying chamber; the bottom part of the drying chamber is provided with a discharge port of the drying chamber; a raw material circular conveying device of the drying chamber is arranged in the drying chamber; and the discharge port of the drying chamber is connected with the feed port of the carbonization chamber. The biomass carbonization furnace provided by the invention is suitable for the pyrolysis and carbonization of biomass raw materials, and can increase the carbonization speed of the biomass raw materials and improve the carbonization quality of the biomass raw materials.

The invention discloses a preparation method of a modified carbon fiber thermal insulation composite material. The modified carbon fiber thermal insulation composite material is prepared from raw materials of silicon powder, coconut shell, phenol, polyvinyl alcohol, etc. The preparation method is characterized in that the coconut shell is used to prepare porous carbon fiber and undergoes a plurality of modification processes to obtain porous carbon fiber with high mechanical strength and high adsorption; and then the porous carbon fiber is impregnated with alkaline silica sol, so that the well-developed mesoporous structure of the silica sol makes the carbon fiber have high temperature resistance and extremely low thermal conductivity, and further strengthens the thermal insulation capacity of the carbon fiber. The obtained composite material is not only light in weight, but also has high thermal insulation ability and low thermal conductivity, so that use cost of the thermal insulation material is greatly reduced, and the modified carbon fiber thermal insulation composite material is suitable for the needs of thermal insulation materials in various fields.

A system and method for rapid carbonization of a fluid such as water. CO2 gas to be pumped into a vessel at an increased pressure greater than one atmosphere. Liquid is then injected into the vessel using the technique of atomization. Atomization is a process where the liquid is caused to take the form of a very large number of tiny droplets. This is done by giving the liquid angular momentum as it is sprayed out of one or more nozzles. The very large number of very small droplets have a tremendously increased surface area increased surface area of the gas-liquid boundary causes very rapid dissolving of the gas in the liquid. The required angular momentum is imparted to the liquid by a curved feed system and by specially shaped nozzles.

The invention provides a system device and method for preparing calcium carbonate by using micro-nano bubbles, and the system device comprises a micro-nano bubble generation device and a reaction device which are connected with each other, and also comprises a first separation device and a centrifugal device which are separately connected with the reaction device, and a second separation device and a third separation device which are separately connected with the centrifugal device. The method for preparing calcium carbonate by using the micro-nano bubbles in the system device comprises the following steps: generating the micro-nano bubbles by using the micro-nano bubble generation device, enabling the micro-nano bubbles to enter the reaction device to be mixed with carbide slag for carbonization reaction, and then introducing the reaction system into the centrifugal device for separation, thereby obtaining calcium carbonate particles. According to the method, the grain size of calcium carbonate is controlled by carbonizing the carbide slag through the micro-nano bubbles, a crystal form control agent is not used, continuous operation can be achieved, intermittent operation can also be achieved, and the method and device have the advantages of being large in treatment capacity, high in carbonization speed, low in cost and the like.

A method for transforming waste into carbon in a reactor, said method comprising: a) drying the waste by submitting said waste to a pressure of at least 3 bar, and a temperature of at least 250° C.; b) releasing the water vapor out of the reactor, and; c) carbonizing at least partially the waste by maintaining said waste during a period of time of at least 5 minutes to a pressure of at least 3 bar, and a temperature of at least 250° C., thereby obtaining carbon; and d) optionally separating non-organic material from the obtained carbon.

The invention discloses a preparation method of modified carbon fiber for organic waste water adsorption and degradation. The modified carbon fiber is prepared from raw materials of water glass, surfactants, ferrous sulfate, sodium borohydride, coconut husk, phenol and polyvinyl alcohol and the like. The coconut husk is used for preparing porous carbon fiber; through the many times modification process treatment, the porous carbon fiber with high mechanical intensity and high adsorption performance is obtained; finally, through soaking reaction, zero-valent iron is loaded onto the carbon fiber; the adsorption performance of the carbon fiber is used for enriching organic contaminants in the water body; the organic degradation is performed through the zero-valent iron; the goal of thoroughlyeliminating organic contaminants is achieved. The preparation method is simple; the reaction conditions are mild; the obtained product can be repeatedly utilized; secondary pollution cannot be generated on the environment; the method can be widely applied to the field of organic sewage treatment.

The invention discloses a preparation method of special low-viscosity activated calcium carbonate for silicone adhesive. The preparation method comprises the following main steps: cane sugar being 0.3-0.8% of calcium hydroxide by weight is added in calcium hydroxide slurry; then kiln gas is introduced for quickly carbonizing; the initial temperature of the carbonization is controlled about 30 DEG C, and the final temperature is controlled about 55 DEG C; after the carbonization is finished, zinc chloride being 0.5-10% of calcium carbonate by weight is added in the slurry; the calcium carbonate slurry is grinded by adopting a vertical bead mill. Mixed emulsion of lauric acid and stearic acid is added in the grinded slurry; under the effect of a homogenizing pump, the dispersion of calcium carbonate and the surface coating are synchronously finished. Finally, the product is obtained by filtering and drying. The particle size of the product is within 0.3-0.8 microns; no agglomeration phenomenon is generated; the activation degree is higher than 99%; the oil absorption value is about 17 g/100 g CaCO3. The viscosity of simulated pasty size is about 75,000 mPa.S; the simulated pasty size can be used as special low-viscosity functional filler for the silicone adhesive.

The invention discloses a preparation method of a modified-porous-carbon-fiber-loaded calcium chloride hygroscopic material. The hygroscopic material is made from calcium chloride, sodium carboxymethylcellulose, diatomite powder, coconut shell, phenol, and polyvinyl alcohol. Porous carbon fiber made from coconut shell undergoes multiple modification treatment. The obtained porous carbon fiber is high in mechanical strength and good in adsorbability. The porous carbon fiber itself can adsorb a large amount of water vapour from air, and the porous structure is beneficial for loading calcium chloride. The composite material is good in moisture absorption, and a small amount of added nanometer diatomite provides components with better adhesion and support after moisture absorption, which is beneficial for reuse of the hygroscopic material after high-temperature drying. The hygroscopic material is non-pollution to the environment, is low in application cost, and is super high in economic value and environmental value.

The invention relates to the technical field of biochars, particularly to a high-temperature heat transfer oil processed biochar and a preparation method thereof. The high-temperature heat transfer oil processed biochar is prepared from plant fiber and starch. The preparation method of the high-temperature heat transfer oil processed biochar comprises shredding and soaking the plant fiber into aqueous alkali, and then drying the soaked plant fiber; uniformly mixing the dried plant fiber with the starch, performing compression molding to obtain a fiber block; fixing the fiber block onto the bottom inside a high-temperature heat transfer oil carbonizing device, and filling in high-temperature heat transfer oil to carbonize the fiber block; performing oil removal treatment on the carbonized fiber block. The prepared high-temperature heat transfer oil processed biochar is high in absorbing performance and can be widely applied to the fields such as sewage purification and human and animalexcreta disposal, thereby being high in promotional value.

The invention discloses a preparation method of an adsorbing material for oil-containing wastewater. The adsorbing material is prepared from polytrimethylene terephthalate, bisphenol A epoxy resin, vinylbenzyl trimethylammonium chloride, coconut shell, phenol, polyvinyl alcohol and the like. The preparation method comprises the following steps: preparing a porous carbon fiber from the coconut shell; carrying out modification treatment for multiple times to obtain a porous carbon fiber with high mechanical strength and high adsorptivity; combining the porous carbon fiber with the vinylbenzyl trimethylammonium chloride with excellent affinity to obtain an oil adsorbing elution material with good physical chemistry stability and excellent mechanical strength. With stability, the adsorbing material is suitable for being applied under various complex environmental conditions, has good environmental and economic benefits and is easy for large-scale production.

The invention discloses a method for preparing an agent for adsorbing and removing organic gas. The agent for adsorbing and removing the organic gas is prepared from tetraethyl orthosilicate, anhydrous ethanol, N,N-dimethylformamide, coconut shells, phenol, polyvinyl alcohol and other raw materials, and according to the method, porous carbon fiber which is obtained by performing multiple modification process treatment and has high mechanical strength and high adsorbability is prepared from the coconut shells; on the basis of the porous carbon fiber, loading of silica and activation of nitrogen-containing gas are achieved through the addition of the tetraethyl orthosilicate, and a large amount of a nitrogen element is introduced on the carbon fiber, so that a strong catalytic effect on sulfur-containing and nitrogen-containing compounds in the air is achieved, and stable and efficient adsorbability of benzene, toluene and other volatile toxic gas is achieved; the skeleton of the modified carbon fiber has strong adaptability to acid, alkali, high temperature and other environments, so that a long-term stable effect of adsorption and purification is achieved; and in addition, the usage mode is flexible, and good applicability to factories, homes and public places is achieved.

The invention discloses a high-efficiency carbonization furnace, which comprises a furnace body, a main fire pipe, a cold air pipe, a fire accessible duct, fire tubes, a flame inlet passage, an fume outlet duct, a fume outlet pipe, U-shaped grooves, a wood gas flue, a water jacket (or snaking hollow section), wood gas chimney and the like. The periphery of the carbonization furnace is provided with a plurality of the U-shaped grooves, and the inside of the carbonization furnace is provided with a plurality of the fire tubes of which two ends are connected with the fire accessible duct and the fume outlet duct respectively. Biomass fuels are placed in the carbonization furnace, the cover board of the furnace body is covered, flue gas passes through the small fire tube to heat the biomass fuels, and the carbonization is started and speeds up with the continuous rise of the temperature. When the carbonization of wood charcoals is finished, an air blower is started; and cool air enters the cold air pipe and the small fire tube 6 to absorb heat of the wood charcoals and flows out from the fume outlet duct to enter a heat drying chamber for drying the raw materials of the biomass fuels. Wood tar and the wood gas generated during the carbonization flow into the wood gas fuel along the U-shaped grooves, and the wood tar is cooled by the water jacket (or snaking hollow section) and changed into solid.

The invention discloses a method and device for producing a carbon material by non-pollution biomass microwave anaerobic carbonization. The method comprises the following steps that: in an inert gas protection environment, high-temperature pyrolysis treatment is performed on biomass by using microwave plasma formed by microwaves and metal discharge to realize anaerobic carbonization of the biomass, and a carbon material and a graphene material are prepared; and harmful substances in tail gas generated in the anaerobic carbonization treatment process of the biomass are adsorbed by utilizing a conductive carbon material, and the adsorbed harmful substances are subjected to high-temperature cracking treatment by utilizing microwave plasma formed by microwaves and metal discharge, so that the purification of the tail gas is realized. According to the method and device of the invention, not only can high-efficiency, pollution-free and zero-emission treatment of the biomass be realized, but also recycling of the biomass can be realized.