36results about How to "Efficient and stable reaction" patented technology

The invention discloses a low-power material separation and transmission direct methanol fuel cell and a working method thereof. A plurality of methanol evaporation pipelines and a plurality of carbondioxide flow paths are respectively arranged in a methanol evaporation region, and a methanol conveying pipeline and a carbon dioxide flow path are independently arranged; and the anode product carbon dioxide is directly discharged through the carbon dioxide flow path after being generated, so that the mixing of the carbon dioxide and a methanol vapor is reduced, the utilization rate of the methanol vapor is increased, and meanwhile carbon dioxide collection and utilization are facilitated. After the methanol vapor is generated, the methanol vapor directly enters a membrane electrode to participate in the reaction, so that the additional power consumption is reduced; a stable flow path is formed in the overall process from the inflow of methanol to the discharge of carbon dioxide, the fuel self-circulation structure largely solves the problems of uneven methanol vapor concentration, insufficient methanol reaction, and methanol and carbon dioxide mixing and the like, so that the battery reaction is more stable and efficient.

The invention discloses a product driving material separation and transmission direct methanol fuel cell and a working method thereof. A methanol delivery pipeline and a carbon dioxide flow path are separately arranged. The carbon dioxide of an anode product is generated and then is directly discharged through the carbon dioxide flow path, which reduces the mixing of the carbon dioxide and a methanol steam, improves the utilization rate of the methanol steam, and facilitates the collection and the utilization of the carbon dioxide. After being generated, the methanol steam directly enters intoa film electrode to participate in a reaction so as to reduce extra power consumption. A fuel cell body is connected to a carbon dioxide buffer tank through a heat exchange pipeline, an anode productoutlet is externally connected with the carbon dioxide buffer tank, and power is provided for a piston in a methanol storage tank through the coordinated management of a fuel cell anode product and cell waste heat, and the supply of a methanol fuel is achieved without additional power consumption.

The invention discloses a material separation and transfer direct methanol fuel cell and a working method thereof. For the material separation and transfer direct methanol fuel cell, the anode side adopts a new type downstream transmission structure, a liquid phase pure methanol is heated and evaporated through a methanol evaporation pipeline to generate methanol vapor, the methanol vapor flows directly into that anode diffusion layer through the methanol vapor channel, a reaction product is refluxed directly to a carbon dioxide buffer isolated from the methanol vapor channel in the fuel product separation zone and discharged directly into the atmosphere, the methanol and product are transported separately, and the whole process of the fuel cell from liquid methanol flowing to carbon dioxide discharge forms a stable downstream flow path, which is conducive to the stable and efficient operation of the anode-side reaction and improved cell efficiency.

The invention discloses a thermal mass balance direct methanol fuel cell and its working method. In the thermal mass balance direct methanol fuel cell, the methanol and the product are transported separately, and the fuel cell as a whole forms a stable downstream transport in the overall process from liquid methanol inflow to carbon dioxide discharge. The flow path enables the fuel to enter the anode directly and evenly, which solves the problems of methanol and carbon dioxide mixing, insufficient methanol reaction, and uneven concentration of methanol vapor, which is more conducive to stable and efficient operation of the anode side reaction and improves battery efficiency; The pressure generated by the carbon dioxide generation process pushes liquid methanol into the fuel cell, reducing additional pump work; the waste heat generated in the reaction zone during battery operation is transferred to the methanol evaporation zone to assist methanol evaporation; the process of methanol evaporation and utilization is more efficient and energy-saving .

The invention relates to a graded conversion combined fluidized bed reaction device and a reaction method, which mainly solve the problems of low carbon conversion rate and gasification intensity, low methane yield, small processing capacity, difficult slagging and pulverized coal existing in the prior art. The problem of low utilization. The present invention adopts a graded conversion combined fluidized bed reaction device and reaction method. Carbon-containing raw materials loaded with catalysts are pyrolyzed in a pyrolysis furnace, and tar gas is collected after separation. After pyrolysis, semi-coke particles loaded with catalysts are mixed with gas The oxidizing agent and oxidant are partially combusted and gasified in the fine reactor, and then the syngas and unfinished carbon-containing particles are further gasified in the coarse reactor, and the reacted carbon-containing particles and part of the catalyst continue to Returning to the pyrolysis furnace, the technical scheme of discharging the ash at the bottom through intermittent classification and slagging can better solve the above technical problems and can be applied to the industrial production of coal classification conversion.

The invention discloses an energy storage driving material separation and transmission direct methanol fuel cell and a working method thereof. A methanol delivery pipeline and a carbon dioxide flow path are separately arranged. Carbon dioxide of an anode product is generated and then is directly discharged through the carbon dioxide flow path, which reduces the mixing of the carbon dioxide and a methanol steam, improves the utilization rate of the methanol steam, and facilitates the collection and the utilization of the carbon dioxide. After being generated, the methanol steam directly entersinto a film electrode to participate in a reaction so as to reduce extra power consumption. The heat exchange amount of a methanol working area and an evaporation area and a carbon dioxide emission amount are accurately controlled to further acquire the methanol steam with a constant flow which participates in a cell reaction, and then the working efficiency and the stability of the methanol fuelcell are improved.

The invention discloses a direct methanol fuel cell capable of realizing heat balance and material separation as well as a working method thereof. The direct methanol fuel cell is characterized in that methanol and a product are separately conveyed, a stable downstream transmission flow path is formed in the whole process of the fuel cell entirety from a moment that liquid-phase methanol flows through to a moment that carbon dioxide is discharged, the problems that methanol reaction is insufficient and methanol vapor concentration is nonuniform as methanol and carbon dioxide are mixed are solved, stable and efficient performance of a reaction at an anode side is better benefited, and cell efficiency is improved; extra heat produced in a fuel cell operation process is transmitted into a methanol evaporation region, and energy consumption is reduced while a fuel cell operating temperature is lowered; and a cell product carbon dioxide enters a pneumatic diaphragm pump under the action ofair pressure, a carbon dioxide flow divider valve drives the pneumatic diaphragm pump to stably convey the liquid phase methanol to the methanol evaporation region, and power is provided for the liquid phase methanol when entering the cell without extra power consumption.

The invention relates to a differential velocity fluidized bed reaction device and a reaction method, which mainly solve the problems of low carbon conversion rate and gasification intensity, low methane yield, difficult slag discharge and low utilization rate of pulverized coal in the prior art. In the present invention, through a differential velocity fluidized bed reaction device and a reaction method, the carbonaceous raw material loaded with the catalyst enters the pyrolysis zone of the inner circulating fluidized bed reactor, and passes through the circulating return zone from the gasification zone. After the carbon-containing particles are rapidly mixed, they are rapidly pyrolyzed. The pyrolyzed semi-coke particles enter the gasification zone for mixing with the gasification agent and gasification reaction. Enter into the slag discharge combustion device, carry out the oxygen-enriched combustion reaction, the heat generated after the reaction supplements the heat demand of the reaction in the gasification zone, and the final generated low-carbon ash is accurately discharged under the monitoring of the acoustic emission detection system. The above-mentioned technical problems are better solved, and the method can be applied to the industrial production of coal graded conversion.

The invention relates to a high-efficiency graded conversion combined fluidized bed reaction device and reaction method, which mainly solves the problems of low carbon conversion rate and gasification intensity, low methane yield, difficult slagging and low utilization rate of pulverized coal in the prior art question. The present invention adopts a high-efficiency graded conversion combined fluidized bed reaction device and reaction method, and the carbon-containing raw material loaded with the catalyst is pyrolyzed in the pyrolysis furnace, and the pyrolyzed tar gas is collected after separation, and the semi-coke particles loaded with the catalyst Combustion and gasification reaction with gasification agent in the first reaction zone, then enter the second reaction zone for gasification reaction, and then the generated syngas and unfinished carbon-containing particles are further gasified in the third reaction zone The reaction, the carbon-containing particles and part of the catalyst after the reaction continue to return to the pyrolysis furnace, and the ash at the bottom of the reaction zone is monitored by acoustic emission in the graded slag discharge device. The above-mentioned technical problems can be solved, and it can be applied to the industrial production of coal graded conversion.

The invention provides a polycarbonate polyol and its synthesis method and application. The synthesis method comprises the following steps: carrying out transesterification reaction between a raw material A containing a polyol or a mixture of a polyol and a lactone and a carbonate to generate the polycarbonate polyol. Carbonate polyol, the raw material A is fed at one time, and the carbonate of the stoichiometrically predetermined total amount of carbonate feed is put into the reaction system by continuous feeding, and the by-products and carbonate are rectified during the reaction. Azeotrope; Sampling and monitoring the mass percentage of carbonate in the fraction during the completion of the stoichiometrically predetermined carbonate feed total amount, controlling the stability of the carbonate content in the fraction composition and / or according to the The content of carbonate is changed to add or reduce carbonate. The method provided by the invention can quickly and stably produce products meeting the requirements of hydroxyl value, and the post-treatment is simpler.