397 results about "Biomass gasification" patented technology

The invention provides a PLC-based biomass gasification industrial steam full-automatic intelligent control system and method. The system comprises a data acquisition module, a modeling identification module, a multi-objective optimization module, a rolling prediction control module, a coordination execution module, a self-adaptive correction module and an abnormal fault tolerance and safety control module. The system collects operation data of a feeding system, a gasification furnace, a boiler, a steam-water system and an environmental protection system in real time through a PLC platform, a dynamic coupling model of a combustion side, a steam-water side and an environmental protection side is established, and a multi-target constraint optimization model with stable steam pressure, up-to-standard emission and minimum energy consumption as targets is constructed. According to the invention, unattended operation of the biomass gasification industrial steam system is realized, the system has the advantages of high control precision, low energy consumption, stable emission and strong fault-tolerant capability, and the intelligence and safety of the industrial steam system are obviously improved.

The invention discloses a capacity configuration optimization method for preparing methanol by coupling wind-solar hydrogen production with biomass gasification, belongs to the field of methanol preparation, and develops a comprehensive optimization framework to evaluate the technical economic feasibility of renewable methanol production. According to the framework, renewable energy power generation, an energy storage technology, hydrogen production through water electrolysis and methanol synthesis are integrated together, so that a production system with cost effectiveness is constructed. And establishing an optimization model to determine the optimal investment and operation strategy of green methanol production. According to the model, investment and operation decisions of a plurality of system components are considered, and a series of decision variables are set. Through the solution of the optimization model, the problem of insufficient economic evaluation and comparison technology of synthesizing methanol from renewable energy sources is solved, a scientific basis is provided for a project in planning, design and decision-making stages, and the development of the field of synthesizing methanol from renewable energy sources is promoted.

The invention provides an energy system for synthesizing green methanol based on biomass gasification and oxygen-enriched combustion, and belongs to the technical field of new energy. The energy system comprises an electrolysis system, an oxygen-enriched combustion system, a methanol synthesis system, a biomass gasification system and an ammonia-process carbon capture unit, an oxygen outlet of the electrolysis system is communicated with the oxygen-enriched combustion system, and a hydrogen outlet of the electrolysis system is communicated with the methanol synthesis system; oxygen generated by the electrolysis system is supplied to the biomass oxygen-enriched combustion system for supporting combustion, and hydrogen is supplied to the methanol synthesis system; a hydrogen outlet of the biomass gasification system is communicated with the methanol synthesis system; a carbon dioxide outlet of the oxygen-enriched combustion system is communicated with the methanol synthesis system through the ammonia-process carbon capture unit; the material energy flow of the energy system is adjusted through hydrogen generated by the biomass gasification system, and the adjusting flexibility of the energy system is improved; the concentration of carbon dioxide output by the oxygen-enriched combustion system is concentrated through the ammonia-process carbon capture unit, and the pretreatment requirement of methanol synthesis is met.

The invention discloses a biomass gasification experimental design and performance prediction method based on support vector and transfer learning, which comprises the following steps: establishing an Aspen plus simulation model, adjusting the gasification temperature to air equivalence ratio in the Aspen plus model, and obtaining a biomass gasification simulation data set covering wide boundary operation conditions; taking the simulation data set as a training sample, constructing a simulation agent model, and searching an optimal hyper-parameter; extracting a support vector sample through a support vector regression method, designing experimental working condition points, and collecting experimental data to obtain an experimental data set; taking the experimental data set as a model input sample, and outputting a predicted value by the model; performing linear migration on a model prediction result; and performing secondary correction on the difference between the migrated result and the experimental data to obtain a high-precision calibration model fusing linear migration and residual correction. According to the method, the problems of high acquisition cost of biomass gasification experiment data, limited simulation data precision and the like are effectively solved, a model with better generalization ability and higher interpretability is constructed under limited experiment samples, and accurate prediction of product distribution is realized.

The invention belongs to the technical field of biomass energy power generation, and particularly relates to a decoupling type biomass gasification power generation system and a multi-parameter cooperative control method.The method comprises the steps that 1, biomass raw materials are fed into a vertical multi-section decoupling gasification furnace to be gasified, a gasifying agent and water vapor are introduced into the decoupling gasification furnace, and the biomass raw materials are gasified by adjusting the introduction amount of the gasifying agent and the water vapor; the temperature of a reduction zone is controlled to be 700-900 DEG C; 2) cooling a gasification product of the decoupling gasification furnace through a heat exchanger, performing primary filtration through a filter I, removing moisture through a steam-water condensation separator, pressurizing through a Roots blower, performing secondary filtration through a filter II, and feeding into an internal combustion engine for power generation; and (3) gas exhausted by the internal combustion engine is supercharged by an exhaust turbocharger, compressed by a compressed air generator and sent to the decoupling gasifier as a gasifying agent. The system has the advantages that in-situ high-temperature catalytic cracking of tar, efficient utilization of waste heat and stable operation of the system can be realized, the power generation efficiency is improved, and meanwhile, the equipment cost is reduced.

The invention provides a biomass gasification coupling iron ore powder reduction device and method with CO2 circulation, and relates to the technical field of direct reduction of iron from biomass gasification products. The biomass gasification coupling iron ore powder reduction device with CO2 circulation comprises a biomass gasification reaction device and a circulating fluidized bed reduction reaction device. The method comprises a method of a biomass gasification reaction device and a method of a circulating fluidized bed reduction reaction device. Through structural arrangement and application of the biomass gasification reaction device and the circulating fluidized bed reduction reaction device, CO2 gas circulation, zero carbon emission and high-purity iron raw material efficient utilization preparation can be achieved; the preparation method is simple and easy to operate, green and environment-friendly, low in cost, short in process, high in efficiency and beneficial to industrial large-scale production and popularization.

The invention discloses a biomass gasification product prediction method based on mechanism and data fusion driving, and the method comprises the steps: constructing a biomass gasification product prediction mechanism model, and inputting biomass gasification operation parameters into the model to obtain a prediction result; calculating a residual vector between a prediction result and actual experimental data; establishing a support vector regression model between the biomass gasification operation parameters and the residual vectors; and taking the output of the support vector regression model as an error compensation item of a biomass gasification product prediction mechanism model, constructing a biomass gasification product prediction model based on mechanism and data fusion driving, and predicting a biomass gasification product by using the model. Through fusion of a mechanism model and data driving, the problem of prediction deviation caused by model simplification hypothesis in a traditional method is solved, high-precision prediction of biomass gasification products is achieved, a theoretical basis is provided for real-time optimization of process parameters, and the method is suitable for industrial control of biomass gasification systems such as fluidized beds and fixed beds.

The invention relates to the field of industrial process control and digital twinning, in particular to a biomass gasification process twinning optimization system and a biomass gasification process twinning optimization method. Five modules, namely a multi-source data intelligent sensing module, a hybrid evolutionary algorithm self-optimization module, a knowledge graph self-adaptive reconstruction module, a multi-time-scale collaborative calibration and prediction module and a closed-loop feedback iterative symbiosis module, are integrated; the system constructs a multi-dimensional deviation feature vector through the intelligent sensing module, and accurately recognizes model deviation; the parameter self-optimization module performs self-adaptive optimization on model parameters by using a particle swarm and differential evolution algorithm; if the optimization does not reach the precision, the knowledge graph module is started, and the model is reconstructed based on the graph neural network; the multi-time scale module ensures that the model is accurately calibrated and predicted under different time scales; the closed-loop feedback module realizes bidirectional information flow between the model and the entity, continuous iterative optimization is realized, and long-term consistency and adaptability of the model are improved; the system realizes conversion from passive early warning to active optimization.

The present invention provides a biomass gasification control system and a biomass gasification control method, and belongs to the field of biosynthesis, the biomass gasification control system comprises: a first-stage fluidized bed pyrolysis reactor for performing a preliminary pyrolysis reaction on a biomass raw material to obtain a pyrolysis reactant; the second-stage fluidized bed gasification reactor is used for carrying out gasification reaction on the pyrolysis reactant by utilizing various gasification agents to obtain target synthesis gas, including H2 and CO; wherein the multiple gasifying agents comprise oxygen, water vapor and carbon dioxide; the sensor monitoring module is used for monitoring real-time state data in the first-stage fluidized bed pyrolysis reactor and the second-stage fluidized bed gasification reactor; the central control module is used for sending out an adjusting instruction according to the real-time state data, and the adjusting instruction is used for adjusting and controlling the flow of the multiple gasifying agents, the rotating speed of the fan and the reaction temperature, so that the molar ratio of H2 to CO in the generated target synthesis gas is within a first threshold value range.

The invention provides a synthesis gas preparation method based on a double-circulation gasifier. The synthesis gas preparation method based on the double-circulation gasification furnace comprises the following steps: S1, feeding a biomass raw material and a gasification agent into the double-circulation gasification furnace for gasification; s2, performing primary separation on the synthesis gas generated by gasification, returning a solid material generated by the primary separation to the double-circulation gasification furnace, and performing secondary separation on the synthesis gas after the primary separation; and S3, returning the solid material generated by the second-stage separation to the double-circulation gasification furnace. According to the preparation method of the synthesis gas, the carbon conversion rate and the gasification efficiency can be effectively improved, the total concentration of carbon monoxide and hydrogen in the synthesis gas is greater than 65%, and the quality of the biomass gasification synthesis gas is greatly improved.

The invention provides a biomass gasification system and a fluidized bed gasification process, the system comprises a fluidized bed gasification furnace, a cyclone separator and a material returning leg, the fluidized bed gasification furnace is provided with a gasification cavity and a gas chamber, and a fluidized bed formed by bed materials is arranged in the gasification cavity. Bed materials are added into the gasification furnace in a spiral feeding and pneumatic conveying combined mode, a fluidized bed is established, biomass particles are added after temperature rise, the pressure in the gasification furnace is kept to be certain, and an auxiliary gasification agent enables the biomass particles to be in a fluidized state. According to the invention, the melting characteristic of biomass ash can be effectively improved, the problem of easy slag bonding during biomass gasification is solved, the gasification temperature is effectively increased, and the methane content in the synthesis gas is reduced. The bed material can catalytically crack tar generated in the biomass gasification process, the quality of synthesis gas is optimized, the synthesis gas is prevented from being bonded and attached to the metal wall of a downstream device, the yield of the synthesis gas and the stability of the device are improved, and the heat exchange efficiency of a downstream waste heat recovery unit is enhanced.

The present application belongs to the technical field of biomass energy power generation, and particularly relates to a decoupling type biomass gasification power generation system and a multi-parameter collaborative control method, which comprises the following steps: 1) biomass raw materials are fed into a vertical multi-stage decoupling gasification furnace for gasification, a gasification agent and water vapor are introduced into the decoupling gasification furnace, the amount of the gasification agent and water vapor introduced is adjusted, and the temperature in the reduction zone is controlled at 700-900 DEG C; 2) the gasification products of the decoupling gasification furnace are cooled by a heat exchanger, then filtered by a filter I for the first time, water is removed by a steam-water condenser separator, pressurized by a Roots blower, filtered by a filter II for the second time, and then fed into an internal combustion engine for power generation; and 3) the gas discharged from the internal combustion engine is pressurized by an exhaust gas turbocharger, then compressed by a compressed air generator, and then fed into the decoupling gasification furnace as a gasification agent. The present application has the advantages that the present application can realize in-situ high-temperature catalytic cracking of tar, efficient utilization of waste heat, and stable operation of the system, thereby improving the power generation efficiency and reducing the equipment cost.

The invention discloses a hydrogen-coupled green methanol production system and method, and a green methanol product is obtained through the procedures of gasification, purification, methanol synthesis, methanol rectification and the like. The hydrogen-coupled green methanol production system comprises a gas making unit, a purification unit, a methanol synthesis unit and a methanol rectification unit, the gas making unit is a biomass gasification unit, the biomass gasification unit comprises a normal-pressure circulating fluidized bed, the normal-pressure circulating fluidized bed gasifies a biomass raw material to generate crude synthesis gas, the purification unit is used for purifying the crude synthesis gas, and the methanol rectification unit is used for rectifying the crude synthesis gas. The hydrogen compression unit is connected in front of the methanol synthesis unit, the hydrogen compression unit is used for providing hydrogen, the methanol synthesis unit is used for synthesizing synthesis gas and hydrogen into crude methanol, and the methanol rectification unit is used for rectifying the crude methanol into refined methanol. The method can promote the resource utilization of biomass materials, achieves the purposes of energy conservation, emission reduction and environmental protection, meets the current requirements of environmental protection, energy conservation and low-carbon economy, and is beneficial to green and sustainable development.

The invention discloses a biomass gasification product distribution prediction method based on a hard constraint physical information neural network. The method comprises the following steps: collecting and preprocessing gasification experiment data; constructing a multi-layer artificial neural network model, and converting prior monotonicity knowledge into an inequality constraint combination only related to network parameters by adopting a hard constraint learning mode; model training: aiming at regression loss and regularization loss of experimental data, adopting a constrained particle swarm optimization algorithm to perform network parameter optimization on the model under an inequality constraint combination to obtain a hard constraint physical information neural network model; and predicting biomass gasification input data by adopting a hard constraint physical information neural network model to obtain a biomass gasification product distribution condition. According to the method, the monotonicity knowledge between the biomass gasification products and the key input parameters is embedded into the neural network model, the problem that biomass gasification experiment samples are insufficient can be effectively solved, and a more accurate and more interpretable biomass gasification product distribution result is obtained.

The utility model relates to a biomass gasification system which comprises a pressurized feeding unit, a fluidized bed gasification unit, a deslagging unit, an entrained-flow bed high-temperature cracking unit, a synthesis gas washing unit, a slag water unit and a gasifying agent conveying unit, the fluidized bed gasification unit comprises a fluidized bed gasification furnace and a high-temperature cyclone separator; the fluidized bed gasification furnace is connected with the pressurized feeding unit, the gasifying agent conveying unit, the high-temperature cyclone separator and the deslagging unit; the entrained-flow bed high-temperature cracking unit comprises an entrained-flow bed high-temperature cracking furnace, and the entrained-flow bed high-temperature cracking furnace is connected with a high-temperature cyclone separator, a gasifying agent conveying unit, a synthesis gas washing unit and a slag water unit. Compared with the prior art, the fluidized bed entrained-flow bed has the advantages of a fluidized bed and an entrained-flow bed, and has the characteristics of wide raw material applicability, high effective gas content, no tar, low energy consumption and the like.

The utility model relates to a system for preparing green methanol by coupling biomass gasification with green electricity electrolyzed water, which comprises a biomass gasification reactor, a dust removal and recovery system, a cooling system, a washing tower, a gas filling device, a pressure control system, a methanol synthesis reactor, a condensation system, a rectification device and a methanol buffer tank which are connected in sequence, the biomass gasification reactor is respectively provided with a biomass feed port, an ash discharge port, a steam inlet and an oxygen inlet, and the bottom of the dust removal and recovery system is connected with the lower part of the biomass gasification reactor through a return pipeline; the electrolytic cell is connected with an oxygen inlet of the biomass gasification reactor through an oxygen conveying pipeline and connected with a gas filling device through a hydrogen conveying pipeline, and water vapor generated by the methanol synthesis reactor is connected to a vapor inlet of the biomass gasification reactor through a pipeline. According to the utility model, the pyrolysis gas does not need to be purified or shunted, the process flow is simplified, and the conversion per pass is improved.

The present invention discloses a low-tar and high-calorific-value biomass gasification device in the field of gasification devices, which includes a gasification furnace, a filtering device and a mounting device. A furnace door is hinged on the side wall of the gasification furnace. The top wall of the gasification furnace is communicated and fixedly connected with a feed inlet. The lower part of the outer side wall of the gasification furnace is communicated and fixedly connected with an intake pipe. The upper part of the outer side wall of the gasification furnace is communicated and fixedly connected with an internal circulation pipe. The filtering device is sleeved on the internal circulation pipe and is communicated with the internal circulation pipe. A gas outlet is fixedly connected to the side wall of the gasification furnace, and the gas outlet is communicated with the internal circulation pipe, so as to solve to a certain extent the problems existing in the prior art that when the internal circulation pipe is in use, the dust contained in the internal flue gas will adhere to the catalyst, affecting the use of the catalyst. The catalyst is installed in the internal circulation pipe. After being used for a period of time, the catalytic effect of the catalyst becomes weak, and the replacement of the catalyst is relatively troublesome, which is not conducive to the progress of the work.

The invention belongs to the related technical field of electrical engineering, and discloses a urea chemical system comprehensive energy scheduling method and system considering multi-energy-mass coupling, and the method comprises the steps: constructing an operation model of each device in a system, the device comprises a water electrolysis hydrogen production device, a pressure swing adsorption device, a biomass gasification hydrogen production device, an electrochemical energy storage device, a hydrogen-doped gas turbine, a carbon capture device, a synthesis ammonia device and a urea synthesis device. Building balance constraints among the devices in the system, wherein the balance constraints comprise electric balance constraints, heat balance constraints, oxygen balance constraints, hydrogen balance constraints and carbon dioxide balance constraints; constructing a cost function; and solving the model by taking the minimum cost function as an optimization target to obtain an optimal scheduling scheme. The energy utilization rate of the rural chemical industrial park can be effectively improved, the carbon emission intensity is reduced, and the cost is reduced.

The invention discloses a multi-energy complementary system based on compressed air energy storage and biomass energy, so that the advantages of the compressed air energy storage and the biomass energy are fully utilized, natural energy is utilized to the maximum extent by the system, and meanwhile, the problem that the energy utilization efficiency of a single system is low is solved. According to the technical scheme, the system comprises a compressed air energy storage unit used for conducting compressed air energy storage on input electric energy and releasing energy in compressed air through an expansion machine so as to conduct power generation and heat recovery; the biomass energy unit is used for utilizing synthesis gas generated by biomass gasification as fuel and providing electric power output and waste heat recovery through combustion; and the heat supply circulating unit is used for recovering waste heat generated by the compressed air energy storage unit and the biomass energy unit and conveying heat to an external heat user side.

The invention relates to a device for preparing high-calorific-value low-carbon fuel from biomass, and belongs to the technical field of chemical equipment. The device comprises a stock bin, a fluidized bed pyrolyzing furnace, an overflow channel, a fluidized bed gasification furnace and a cyclone separator which are sequentially connected, the cyclone separator is communicated with the fluidized bed pyrolyzing furnace, and the fluidized bed gasification furnace is connected with a microwave generator; the bottom of the fluidized bed pyrolyzing furnace is communicated with an oxygen-poor gas input pipeline, and the bottom of the fluidized bed gasifying furnace is communicated with an oxidizing gas input channel. The biomass gasification reaction is divided into a pyrolysis process and a gasification process by the double fluidized beds, the two processes are decoupled, and a plurality of functional groups related to hydrogen production are generated by low-temperature pyrolysis in the fluidized bed pyrolyzing furnace, so that the yield of hydrogen is increased; microwave heating is introduced into the fluidized bed gasification furnace, so that the gasification furnace can reach the required temperature more quickly, meanwhile, pyrolysis products are converted through microwave targeting energy, generation of tar and methane is remarkably reduced, and generation of hydrogen production reaction is facilitated, so that high-calorific-value low-carbon fuel is generated.

The invention discloses a solar-driven biomass pyrolysis-gasification energy utilization system running day and night. The system comprises a biomass pyrolysis-gasification subsystem and a solar spectral photovoltaic water electrolysis subsystem. According to the system, solar frequency division heat collection, high-temperature synthesis gas sensible heat and ash residue waste heat are absorbed and stored in a gradient mode through molten salt and are used for providing heat needed by biomass pyrolysis reaction; in the daytime, the system provides heat required by high-temperature gasification reaction through solar full-spectrum light condensation, and the heat is provided by combustion of part of pyrolysis products when no light exists at night. According to the system, by integrating various energy utilization technologies such as solar full spectrum and spectral utilization, biomass gasification, photovoltaic power generation and waste heat utilization, coupling utilization of two renewable energy sources of solar energy and biomass energy and gradient utilization of energy are achieved, and the energy utilization efficiency of an energy system and the quality of synthesis gas are effectively improved.

The present application provides a kind of green low-carbon biomass coupling molten salt energy storage system for preparing methanol, belongs to the field of methanol preparation system.The problem of methanol release gas and surplus biomass gas produced in the process of biomass gasification for preparing methanol needs to be treated is solved.New energy electricity is partly used for electrolysis of water, and partly as abandoned electricity into molten salt electric heater.Hydrogen produced by electrolysis of water enters catalytic synthesis tower, and oxygen is used for biomass gasification.Carbon monoxide, hydrogen and carbon dioxide produced enter catalytic synthesis tower, and methanol is synthesized in catalytic synthesis tower.Biomass, surplus biomass gas and formaldehyde release gas enter high-temperature high-pressure biomass fluidized bed boiler, and then superheated steam produced by high-temperature high-pressure biomass fluidized bed is used as a catalytic temperature heat source for producing methanol, and the remaining steam enters a power generation system for power generation to ensure stable power supply of the entire system.The high-temperature high-pressure steam produced for power generation can improve the unit efficiency.

The invention belongs to the technical field of biomass energy, and discloses an energy system based on biomass gasification, which is characterized in that biomass is converted into high-temperature synthesis gas flow by a gasification furnace, the high-temperature synthesis gas flow enters a carbon dioxide supercritical device to heat carbon dioxide fluid into supercritical fluid so as to drive power generation, and medium-high-temperature synthesis gas flow is formed; the medium-high-temperature synthesis gas flow enters the organic Rankine cycle device to heat and evaporate the organic fluid into high-enthalpy fluid to drive power generation and form medium-low-temperature synthesis gas flow, and the medium-low-temperature synthesis gas flow enters the seawater desalination device to evaporate and separate seawater into fresh water and saline water and form low-temperature synthesis gas flow; the methanol synthesis device captures hydrogen and carbon dioxide in the low-temperature synthesis gas flow and synthesizes methanol; electric energy and fresh water are obtained through stepped utilization of heat energy of synthesis gas flow, the energy utilization rate is greatly improved, hydrogen energy is obtained by capturing hydrogen in the synthesis gas flow, and carbon dioxide in the synthesis gas flow is further captured to synthesize methanol with the hydrogen.

The invention relates to the technical field of biomass treatment, in particular to a biomass gasification system and a biomass gasification method. The biomass gasification system comprises a gasification furnace which is provided with a furnace body, a biomass inlet communicated with the furnace body, a gasification agent inlet and a crude synthesis gas outlet; an inlet of the waste heat boiler is communicated with the crude synthesis gas outlet, and an outlet of the waste heat boiler is connected with a negative pressure device; an inlet of the dust remover is communicated with the negative pressure device, and an outlet of the dust remover is connected with a cooling device. The biomass and the gasifying agent are gasified and reacted in the gasifier to generate crude synthesis gas, the crude synthesis gas is discharged after being dedusted by the deduster and cooled by the cooling device in sequence under the negative pressure environment provided by the negative pressure device, and due to the arrangement of the negative pressure device, the atmospheric pressure in the system is always lower than the atmospheric pressure outside the system; therefore, the synthesis gas generated in the system cannot be leaked, but is discharged from a unified outlet after being treated, so that the normal operation of equipment is ensured, and the potential safety hazard is reduced.

The invention belongs to the technical field of biomass gasification, and particularly relates to a preparation method of high-calorific-value biomass gas. The preparation method comprises the following steps: (1) performing pyrolysis reaction on a modified biomass raw material in a pyrolysis reactor to obtain pyrolysis gas and solid biochar; (2) enabling the pyrolysis gas and water vapor to flow into a fixed bed reactor filled with a catalyst layer in parallel from bottom to top, carrying out methanation reaction to obtain product gas, enabling the product gas to flow out from the top of the fixed bed reactor, dividing the product gas into three streams, namely product gas A, product gas B and product gas C, cooling the product gas A to 40-50 DEG C, returning the product gas A to the fixed bed reactor, and enabling the product gas B to flow into the fixed bed reactor; the product gas B directly returns to the fixed bed reactor, and the reaction gas C is cooled and then is collected as biomass fuel gas. According to the preparation method, the content of methane in the fuel gas and the calorific value of the fuel gas can be remarkably increased.

The invention discloses a device and a method for preparing carbon-rich fuel gas by biomass gasification based on catalyst in-situ regeneration. The device comprises a biomass input unit, a gas input unit and a reaction unit, the biomass input unit is used for adjusting the biomass feeding amount so as to convey biomass to the reaction unit; the gas input unit is used for adjusting the flow of gas and introducing the gas into the reaction unit; the gas comprises air and CO2; the reaction unit sequentially comprises a reforming area, a gasification area and a residue combustion area from top to bottom; biomass is conveyed to the gasification area, air is introduced into the gasification area to react with the biomass to generate combustible gas, solid residues generated after the biomass is gasified fall into the residue combustion area to be combusted, and heat generated by combustion is transferred to the gasification area and the reforming area to provide heat for gasification and reforming. According to the invention, in-situ regeneration of the catalyst and CO production are realized by innovatively utilizing CO2, flexible regulation and control of gas product components are realized, and wide-range adaptability of biomass gasification products in application scenes is effectively improved.

The present application provides a kind of biomass gasification coupling SOEC co-electrolysis system and process of green fuel, the present application is coupled with biomass gasification and solid oxide electrolytic cell (SOEC) co-electrolysis synthesis gas path, with forestry waste biomass as raw material, adopt oxygen-carrying-CO2 adsorption functional material, construct gasification-adsorption integrated and SOEC co-electrolysis deep coupling system;System includes gasification unit, first heat exchange unit, gas purification unit, regeneration oxidation unit, SOEC electrolysis unit and fuel synthesis unit;With wind power, photovoltaic and other green electricity as SOEC electrolysis unit driving energy, integration biomass directional conversion, CO2 in situ capture-function material regeneration cycle, SOEC high temperature co-electrolysis is integrated, rely on heat cascade utilization, achieve system material closed loop reuse;By adjusting the amount of water vapor in the system, obtain specific hydrogen carbon ratio synthesis gas, so as to realize the production of green fuel, whole process saves traditional water gas shift process, improve system energy efficiency, avoid carbon loss, reduce high temperature energy consumption.

The utility model discloses a system for preparing renewable natural gas by utilizing biomass, which comprises a biomass degradation system, a biomass combustion system, a biomass gasification system and a wind and light energy storage electrolysis system, the biomass degradation system comprises an anaerobic fermentation device, a purification device and a biogas storage tank I which are communicated in sequence, the biomass combustion system comprises a biomass boiler, a carbon dioxide trapping device, a methanation device I and a synthetic natural gas storage tank which are sequentially communicated, and the biomass gasification system comprises a gasification furnace, a methanation device II and a biogas storage tank II which are sequentially communicated. The wind and light energy storage electrolysis system comprises a wind power and photovoltaic power generation system and an electrolytic cell which are sequentially communicated. The biomass recycling system has the advantages that recycling treatment of different types of biomass is realized, and meanwhile, efficient development and utilization of biomass energy are also realized.

The invention relates to the technical field of energy scheduling, in particular to a scheduling method and system for an off-grid wind-solar hydrogen production and biomass gasification methanol production system, and the method comprises the steps: obtaining system prediction data; judging whether an extreme weather event occurs or not based on the environment temperature predicted value; dynamically calculating the thermal power for maintaining the lowest safe activity of the synthetic tower catalyst; taking the maximum methanol output value as a scheduling target, constructing a target function, and generating an optimal scheduling plan of a specific period in the future; executing the optimal scheduling plan; according to the method, a prediction-based dynamic guaranteed threshold model is introduced; according to the method, the future environment temperature is analyzed in real time, a catalyst activity attenuation kinetic model is combined, and the thermal power required for maintaining the lowest safe activity of the synthetic tower catalyst is dynamically calculated; according to the method, the energy scheduling decision is improved from passive response to active defense, absolute safety of chemical production core equipment under extreme conditions is ensured, and huge loss caused by non-planned shutdown is effectively avoided.

The invention provides a traditional Chinese medicine residue resource utilization process which comprises the following steps: collecting traditional Chinese medicine residues, classifying and storing the traditional Chinese medicine residues, chopping and drying the traditional Chinese medicine residues, and evaporating water to complete pretreatment of the traditional Chinese medicine residues; the pretreated traditional Chinese medicine residues are subjected to biomass gasification treatment in a biomass gasification treatment mode; combustible gas generated in the biomass treatment process is completely combusted by a gas generator to generate heat and electric energy; the residues obtained after biomass gasification treatment are subjected to carbonization treatment, and the residues achieve the effect of biomass carbon. The traditional Chinese medicine residues are subjected to chopping and drying pretreatment and then subjected to biomass treatment, so that combustible mixed gas containing hydrogen, carbon monoxide, methane and the like is generated from the traditional Chinese medicine residues, the gas can form new energy to serve as boiler production power, zero emission of production waste is achieved, pollution to the environment is reduced, the residues are subjected to carbonization treatment, and the production cost is reduced. And the residue reaches the effect of biomass carbon, so that resource recycling is realized, and the method is economical and practical.