43results about How to "Efficient gasification" patented technology

A method for recycling the waste heat generated from an external process, which is fuelled by syngas, into a gasification process to enhance the energy density of the syngas produced as well as the overall gasification efficiency of the system. A method is provided for utilizing the waste heat contained in a stream exiting in the syngas fueled process to vaporize water and produce steam. The steam is then upgraded by first exchanging energy with the hot syngas exiting the gasifier and then within the gasifier itself to a temperature where significant steam gasification of the biomass occurs. The process within the gasifier is driven by introducing a small amount of air into the gasifier such that some biomass is directly combusted to provide the heat required by the process.

The invention relates to a waste processing method and a waste processing system which can avoid discharging harmful material as dioxins and effectively attain the slag of value metal. Wherein, the method for recycling value metal comprises: burning the waste, recycling the slag that containing value metal, and fully burning generated gas , and cooling said burning gas with the cooling speed that avoiding generating dioxins. With said method, the invention can gasify the resin component in the waste via burning waste, to obtain the slag of value metal in short time.

The invention discloses a household up-draft biomass gasification device, which has an upright cylinder structure and is characterized in that the household up-draft biomass gasification device comprises a destructive distillation chamber arranged at the upper section thereof, a main gasification chamber arranged at the middle section thereof and an ash chamber arranged at the lower section thereof; all the sections are respectively separated by a heat storage grille and a heat storage grate; and the main gasification chamber is enclosed by a radiation cylinder on the periphery. The household up-draft biomass gasification device has no need of an external firing heat source, fast firing speed and high temperature of the gasification center, remarkably reduces tar content, reduces radiation loss of a furnace body, and has high gasification efficiency, long fire banking time of the gasification furnace, simple and compact structure, convenient operation and low operating cost.

A direct-fuel-injection-type spark-ignition internal combustion engine has a fuel injection valve which directly injects fuel into a cylinder. A nozzle hole of the fuel injection valve directs fuel toward an impingement portion of the cylinder bore located opposed to the nozzle hole in a lower section of the cylinder bore so that fuel can be injected into a cavity formed in a top face of a piston from an upper section of the cylinder bore during the latter half of a compression stroke. A cooler located at least in the neighborhood of the impingement portion in the lower section of the cylinder bore has a lower cooling capacity than a cooler located in the neighborhood of the upper section of the cylinder bore. Thus, fuel injected during the latter half of an intake stroke that adheres to the cylinder bore can be effectively gasified.

Provided is a heat storage system that is capable of improving the calorific quantity and the heat transport amount using a simple configuration, a heat storage container, and a heat storage device in which the heat storage container is used. A heat storage system in which is used a heat storage container having a tubular body, a chemical heat storage element accommodated in the tubular body, and a flow channel that penetrates the tubular body in the longitudinal direction, wherein: the heat storage system has a diffusion layer for transporting, from the flow channel toward the chemical heat storage element, a liquid that functions as a reaction medium with the chemical heat storage element; the liquid is transported in the flow channel; the liquid is transported to the diffusion layer; the liquid transported to the diffusion layer reacts with the chemical heat storage element, and the chemical heat storage material generates heat; and the liquid is vaporized by the heat to become a heat transporting fluid.

The purpose of the present invention is to provide: a production method and production device with which it is easy to produce a low-grade coal slurry having a high slurry concentration and a low viscosity, and which is appropriate for gasification using a pressurized gasification furnace; and a gasification system provided with such a production device. This low-grade coal slurry production method has: a first step for heating and drying coarsely ground low-grade coal, and recovering condensed water emitted from the low-grade coal as steam; and a second step for adding a dispersant and the condensed water obtained during the first step to the heated and dried low-grade coal, and forming a slurry using the wet-grinding method. In addition, this low-grade coal slurry production device has: a drying device for heating and drying the coarsely ground low-grade coal; a condensed water recovery device for recovering condensed water emitted from the low-grade coal as steam through the heating and drying; and a wet-grinding device for adding the condensed water and the dispersant to the heated and dried low-grade coal, and forming a slurry.

A separator separates fuel components from oil diluted by fuel in a crossflow filtration method. The separator includes a tubular separator main body; a separation member provided in the separator main body to partition an inside of the separator main body into a first area and a second area, and further to allow the fuel components contained in the oil to permeate and thus separate the fuel components; an oil inlet provided to the separator main body and feeding the oil to the first area; an oil outlet provided to the separator main body and discharging the oil from the first area; a fuel outlet provided to the separator main body and discharging the fuel components from the second area; and a heater provided to an upstream side of the separation member and heating the oil before the oil reaches the separation member.

In the ionization probe, an assist gas nozzle, coaxial with a nozzle, is provided around a nozzle that discharges a liquid sample. A housing inside which is formed an annular assist gas channel is provided around the assist gas nozzle. A gas inlet for introducing gas into the assist gas heating channel and gas outlet for feeding gas from channel to assist gas nozzle are provided at opposite locations across the center of the channel. Gas introduced into the assist gas heating channel is heated by a substantially annular heater, and high temperature gas is discharged through gas discharge hole of the assist gas nozzle. The heater and the channel through which high temperature gas flows are arranged solely at the tip part of the ionization probe, so thermal insulation of the probe base part can be easily accomplished.

The invention provides a liquefied natural gas gasification system and method based on circulating solar power generation. The liquefied natural gas gasification system comprises a heat collection and storage unit, a power generation unit and a natural gas gasification unit, wherein the heat collection and storage unit is connected with the power generation unit through a first heat exchanger, the power generation unit is connected with the gasification unit through a third heat exchanger and a fourth heat exchanger, and the natural gas gasification unit is connected with the heat collection and storage unit through a second heat exchanger. In the gasification system, collected solar energy is utilized in a graded mode, high-temperature heat-transfer working media are used for power generation through an organic Rankine circulating system, waste heat is used for jet type liquefied natural gas gasification, liquefied natural gas gasification is achieved while renewable energy resources are used for power generation, the liquefied natural gas gasification speed is increased, and non-renewable energy resources are saved.

The invention relates to the field of caprolactam production, in particular to a caprolactam production device and method, and the device comprises a cyclohexanone-oxime evaporation and gasification system, a mist separation system, a fluidized bed reaction system and a moving bed reaction system which are connected in series; the device further comprises a reaction solvent recycling system and acarrier gas recycling system. The method comprises the following steps: (1) evaporating and gasifying carrier gas, ethanol and cyclohexanone-oxime in a cyclohexanone-oxime evaporation and gasificationsystem; (2) feeding a gas-phase material flow obtained in the step (1) into a mist separation device to gasify cyclohexanone-oxime which is not completely gasified in a cyclohexanone-oxime evaporation and gasification system; (3) feeding the material flow obtained in the step (2) into a fluidized bed reaction system and a moving bed reaction system in sequence for gas-phase Beckmann rearrangementreaction; and (4) recovering ethanol and carrier gas in the material flow obtained in the step (3). By adopting the device and the method, the high conversion rate of cyclohexanone-oxime can be obtained, the problem of catalyst discharge is avoided, and the production is not interrupted.

The invention discloses a high-efficiency and energy-saving gasifier, comprising a furnace body, a multi-cone furnace core, a feed port and an air vent; wherein the furnace core is formed by sealing connection of three cones, the upper cone is distributed with a plurality of pores, a clapboard is connected with the middle upper part of the upper cone of the furnace core in an enclosed way, the lower cone of the furnace core is connected with an air inlet I, furnace tooth is arranged at the upper end of the air inlet I, an air inlet II is opened at the lower end of the furnace body, the interior of a pedestal is opened with an air course, a slip air door is arranged at the joint of the furnace body and the pedestal, the air vent is arranged at the upper part of the furnace body, the feed port is connected with the furnace body and the furnace core, and the feed port is in folded plate type tank body structure. The invention has higher heat utilization and good gasifying and is more energy-saving, and combustion is more through.

The invention discloses a preparation system of industrial gas and a preparation method of industrial gas. The preparation system comprises a pulverized coal conveying unit, a entrained-flow gasifier,a convection waste heat boiler, a steam drum and a dust removing unit; the entrained-flow gasifer is provided with a gasification chamber, a cyclone separation chamber and a collection chamber; the side wall of the gasification chamber is uniformly provided with first nozzles; the top of the gasification chamber is provided with a first synthesis gas outlet, and the bottom of the gasification chamber is provided with a liquid slag outlet; the cyclone separation chamber is provided with a straight barrel section and a lower cone separation section, the first synthesis gas outlet is communicated with the straight barrel section, the top of the straight barrel section is provided with a second synthesis gas outlet, the bottom of the lower cone separation section is provided with a fly ash outlet, and the cyclone separation chamber is also provided with a cyclone riser leaded out from the straight barrel section; the side wall of the gasification chamber is uniformly provided with secondnozzles; the collection chamber is used for collecting the slag discharged from the liquid slag outlet so as to block the bottom of the gasification chamber from being communicated with the outside. The preparation system and the preparation method have lower investment, lower industrial gas cost, cleaner and stronger coal adaptability.

The purpose of the present invention is to provide: a production method and production device with which it is easy to produce a low-grade coal slurry having a high slurry concentration and a low viscosity, and which is appropriate for gasification using a pressurized gasification furnace; and a gasification system provided with such a production device. This low-grade coal slurry production method has: a first step for performing a modification treatment on coarsely ground low-grade coal under high-temperature and high-pressure conditions; and a second step for adding water and a dispersant to the modification-treated low-grade coal, and forming a slurry from the low-grade coal using a wet-grinding method. In addition, this low-grade coal slurry production device has: a dry-grinding device for dry-grinding the low-grade coal; a high-temperature/high-pressure kneading device for performing a modification treatment on the dry-ground low-grade coal; and a wet-grinding device for adding the dispersant, and the water discharged from the low-grade coal during the modification treatment, and forming a slurry from the modification-treated low-grade coal.

The invention discloses an integrated downdraft biomass gasification power generation system, belongs to the technical field of biomass gasification power generation, and particularly relates to an integrated downdraft biomass gasification power generation system and method. The system comprises a hopper, a reactor, a slag barrel, a cyclone dust remover, an air preheater, an activated carbon adsorber, a gas fan, a torch, an air fan, a gas generator set, a pipeline, a ladder and a base, and is characterized in that the hopper, the air preheater, the cyclone dust remover, the slag barrel and thereactor are coupled into a compact whole, so that the heat efficiency of the whole system is greatly improved. The system is suitable for gasifying straw particles, wood chips, crushed coconut shellsand other carbonaceous biomass materials to generate combustible gas, and the combustible gas is conveyed into a gas engine to be combusted to push the engine to drive a generator to generate electric energy. The system is compact in structure, high in universality, high in energy utilization rate, reliable, convenient to use and easy to operate.

The invention discloses a heat and mass balanced direct methanol fuel cell and a working method thereof. According to the heat and mass balanced direct methanol fuel cell, methanol and a product are conveyed separately, the fuel cell forms a stable forward transmission flow path in the whole process from flow-in of liquid phase methanol to discharge of carbon dioxide, therefore, fuel can directlyand uniformly enter an anode, the problems that a methanol reaction is insufficient, and methanol steam concentrations are not uniform due to mixing of methanol and carbon dioxide are solved, stable and efficient running of an anode-side reaction is further benefited, and cell efficiency is improved; pressure intensity generated in the generation process of the product carbon dioxide is utilized to push the liquid state methanol to enter the fuel cell, so that additional pump work is lowered; waste heat generated in a reaction region in the cell running process is transmitted to a methanol evaporation region and used for assisting methanol evaporation; and the methanol evaporating and utilizing process is more efficient and saves more energy.

The invention belongs to the field of energy treatment and utilization of solid wastes, and particularly relates to an organic solid waste semi-in-situ carbon sequestration gasification device. The device comprises a gasification furnace body, a heat supply interlayer, a semi-in-situ catalyst placing net and a movable fire grate, wherein the gasification furnace body comprises a solid waste feeder, a carbon dioxide inlet, a combustible gas outlet, a catalyst replacement port, an ash outlet, an ash bin and the like; the heat supply interlayer is communicated with the hot air inlet and the hot air outlet; the organic solid waste is converted into combustible gas by controlling the furnace temperature and the carbon dioxide amount. The device is simple and ingenious in structure, high in gasification efficiency and stable in carbon dioxide fixation. Compared with an in-situ gasification catalytic device, carbon deposition and coverage caused by mixing of a catalyst and fed materials are avoided, compared with a two-stage gasification catalytic device, the investment cost can be reduced, the problems of slow natural degradation, incineration emission pollution and the like of organic solid waste can be effectively solved, the treatment efficiency of the organic solid waste is improved, and increase of carbon dioxide is effectively inhibited.