26 results about "Carbon utilization" patented technology

The invention belongs to the technical field of drought risk prediction and vegetation influence evaluation, and particularly discloses a vegetation-to-drought resource utilization coupling response strategy evaluation method, which comprises the following steps: acquiring target data; constructing a drought index according to the target data, and extracting a drought event; extracting vegetation total productivity, vegetation net level productivity and evapotranspiration abnormal data before and after the drought event, and calculating response intensity of vegetation variables; calculating the average variation of the light energy utilization efficiency, the carbon utilization efficiency and the moisture utilization efficiency; comprehensively considering the multivariable resistance-recovery state of the vegetation physiological process and the regulating variable of the resource utilization efficiency of the vegetation in response to drought stress, and analyzing the drought event resistance-recovery response capability of the vegetation. The method can more accurately and objectively understand the physiological mechanism difference of the vegetation to the drought stress response.

The invention provides a uracil production strain and a construction method and application thereof.According to the strain, on an E.coli UR14 genome by means of a CRIPSR / Cas9 gene editing technology, firstly, psuG genes, preTA genes, rutA genes and upp genes are knocked out, so that decomposition of uracil is blocked; then, a uridine phosphorylase gene udp and a pyrimidine-5 '-nucleotide nucleotidase gene ppnN are subjected to overexpression, and synthesis and accumulation of uracil are synergistically enhanced; and finally, overexpression of the ribose phosphate mutase gene pgm further enhances the conversion of a by-product ribose phosphate 1-precursor 5-ribose phosphate 1-pyrophosphate and improves the carbon utilization rate, and the obtained strain has good genetic stability and high fermentation yield, can stably produce uracil, and has wide application prospects.

The invention discloses a land comprehensive improvement quality evaluation method and system based on big data, relates to the technical field of land resource management, and solves the problem of lack of effective quantification means for more critical ecosystem function indexes. The invention discloses a land comprehensive improvement quality evaluation method and system based on big data. The method comprises the steps that a remote sensing image module and an optical image module are used for collecting image data of soil surface vegetation; uploading the acquired image data to a cloud platform through a data network, and establishing a soil surface vegetation optical evaluation index database; the carbon dioxide monitoring module and the oxygen monitoring module are used for monitoring the carbon dioxide concentration and oxygen near the vegetation on the soil surface in real time. According to the method, a soil surface vegetation carbon sequestration evaluation index database is established to calculate vegetation net primary productivity, biomass and carbon utilization efficiency, the vegetation net primary productivity, biomass and carbon utilization efficiency are summarized through a software program, and an ecological quality comprehensive index of soil surface vegetation is given.

The invention discloses a method for quantifying response of two carbon utilization modes of microalgae to weathered carbon sink of magnesium-containing silicate rock, which comprises the following steps: culturing two groups of microalgae under the same culture condition, adding magnesium-containing silicate rock and microalgae into one group, and setting an inhibitor (AZ / DIDS) added with a certain carbon utilization mode as an experimental group; and only magnesium-containing silicate rock and microalgae are added into one group as a blank group without adding an inhibitor (AZ / DIDS) of a certain carbon utilization mode. Setting the treatment group added with AZ (10mM) and DIDS (2mM) as an experimental group, and subtracting the weathering quantity of the magnesium-containing silicate rocks in the treatment group not added with AZ / DIDS and the treatment group added with AZ / DIDS to obtain the weathering quantity delta Ti of the magnesium-containing silicate rocks under the influence of the microalgae anion channel utilization mode, namely delta Ti = Ti-Ti (AZ / DIDS), and rock weathering carbon sink Qi = delta Ti under the influence of the microalgae anion channel utilization mode. Fitting a polynomial function Q = Q (i) to obtain the response function of the microalgae extracellular carbonic anhydrase mode or the microalgae anion channel utilization mode to the weathering carbon sink of the magnesium-containing silicate rock. According to the method, the rock weathering carbon sink quantity under the influence of two carbon utilization modes of the microalgae can be rapidly and accurately obtained. The invention provides the method for quantifying the response of the two carbon utilization modes of the microalgae to the weathered carbon sink of the magnesium-containing silicate rock so as to overcome the defect that the response of the two carbon utilization modes of the microalgae to the weathered carbon sink of the magnesium-containing silicate rock cannot be quantified in the prior art.

The invention discloses a method for reducing an oxygen-enriched side-blown iron-containing material by using a biomass carbon source, and particularly relates to the technical field of metallurgical process optimization and efficient utilization of carbon resources. By constructing a multi-point temperature monitoring system and combining carbon source pretreatment, oxygen enrichment disturbance control and rhythm function driving, dynamic matching of carbon source release and an oxygen channel is achieved, an alternate local reduction window is formed, and the reduction efficiency and the carbon utilization rate are effectively improved; meanwhile, by recognizing a high-residual reducing gas area, adjusting a tail gas extraction path and guiding the tail gas into a preheating area, tail gas heat value recovery and carbon recycling are achieved; the method has the advantages of high reaction efficiency, low carbon emission, low energy consumption and high system controllability, and is suitable for low-carbon metallurgy and resource recycling scenes.

The invention discloses a hydrogen-powered decoupling type carbon dioxide electrochemical reduction system and method, and belongs to the field of carbon dioxide electrochemical reduction, and the method comprises the following steps: under the driving of renewable electric energy, a carbon dioxide electrochemical reduction reaction is carried out in a cathode region of an electrolysis system, and carbon dioxide is reduced under the action of a catalyst; carrying out gas-liquid separation and gas drying to obtain gas and liquid products; pCET electrochemical oxidation reaction of an organic matter electric coupling agent is carried out in the anode region; an organic matter electric coupling agent is introduced as a medium, H2 oxidation is separated from an electrochemical process, and meanwhile, energy released by H2 oxidation is utilized to promote a low-energy-consumption carbon dioxide electroreduction process; the oxidized organic matter electric coupling agent is circulated to an external buffer tank through a pump, and a buffer tank solution is circulated to the reduction reaction tower through a pump and reacts with hydrogen in the reduction reaction tower to be chemically reduced to achieve regeneration. The electrolysis energy consumption is reduced, the carbon utilization rate is increased, and the method plays an important role in low-carbon comprehensive utilization.

The invention discloses a method for detecting the carbon utilization efficiency of soil microorganisms based on fermentation bed padding, and particularly relates to the technical field of soil utilization efficiency detection.The method comprises the steps that a target fermentation bed padding sample and a corresponding applied soil sample are obtained; measuring a target fermentation bed padding sample and an applied soil sample, and constructing a characteristic parameter set; determining the microbial carbon utilization efficiency corresponding to the applied soil sample by adopting an isotope labeling method; training the input variables and the output variables by using a machine learning algorithm, and establishing a microbial carbon utilization efficiency prediction model; and predicting the carbon utilization efficiency of the to-be-detected target fermentation bed padding. The soil microorganism carbon utilization efficiency detection method is constructed through sample data acquisition, characteristic parameter determination, carbon utilization efficiency reference value determination, prediction model construction and training and carbon utilization efficiency prediction, and the problems of low detection efficiency, insufficient detection pertinence and accuracy, lack of an efficient prediction system and the like are solved.

The invention provides an oxamido multi-nitrogen-source core-shell structure long-acting slow release fertilizer as well as a preparation method and application thereof. The slow-release fertilizer is of a core-shell structure, the core-shell structure comprises an inner core area and a shell, the inner core area at least comprises a quick-acting core, and raw materials of the quick-acting core comprise a quick-acting nitrogen source, a medium trace element compound, humus, poly-polyhydroxy acid and a first auxiliary agent; the shell is prepared from the following raw materials: slow-release nitrogen source oxamide, a second auxiliary agent and a biological agent. Controllable slow release within 50-200 days is achieved, the nitrogen utilization rate is increased by 1.25-2 times compared with a conventional compound fertilizer, the nitrogen and carbon utilization rate is remarkably increased, and carbon emission to the atmosphere is reduced. The fertilizer can meet the requirements of the whole growth period after being applied once, is suitable for food crops and commercial crops, and has remarkable economic and environmental benefits.

The invention belongs to the field of biomass high-valued utilization, and provides a method and system for estimating the carbon utilization efficiency of forest biomass high-valued utilization, and the method comprises the steps: determining the initial carbon component content based on the forest type; converting the woods according to a biomass high-valued conversion process, and determining the content of carbon components in the woods after each step of process is completed; constructing a carbon transfer matrix of each step of flow according to the carbon component contents of the input raw materials and the output products of each step of flow; determining the final carbon component content after the forest biomass is subjected to high-valued treatment by utilizing the initial carbon component content and the carbon transfer matrix of all the processes; and determining the high-valued carbon utilization efficiency of the forest biomass based on the ratio of the final carbon component content to the initial carbon component content after the forest biomass is subjected to the high-valued treatment. According to the method, the accuracy of estimating the high-value utilization carbon utilization efficiency of the biomass can be improved, and a reliable measurement index is provided for the technical improvement of the high-value utilization of the biomass.

The application discloses a kind of determination methods of soil microbial carbon utilization efficiency, it is related to the determination field of carbon utilization efficiency, the application includes pre-culturing soil sample, multi-source 18 O Isotope gradient labeling, dynamic gas monitoring, dynamic correction of microbial respiration rate, microbial growth rate and carbon utilization efficiency acquisition, by multi-source isotope labeling, the contribution of different oxygen sources to microbial DNA synthesis is quantified, the low estimation of carbon utilization efficiency caused by traditional single labeling method is avoided, the limitation problem existing in the current soil microbial carbon utilization efficiency determination process is solved, gradient labeling reduces the inhibitory effect of local concentration on microbial metabolism, improves the uniformity of labeling, sets multiple soil samples, simultaneously uses dynamic monitoring to capture the real-time change of microbial respiration, eliminates the influence of isotope fractionation on carbon dioxide concentration calculation, avoids the instantaneous error of traditional static measurement, to a certain extent, the accuracy of analysis result is improved.

The invention discloses a distributed carbon management integrated system capable of automatically realizing carbon capture, carbon utilization and carbon sequestration in a single system. The distributed carbon management integrated system comprises a direct air capture unit, an electrochemical regeneration unit, a carbon dioxide release and pressurization unit, a water mineral separation and carbon sequestration unit, a circulating liquid transmission system and a control module. Carbon dioxide in the air is firstly adsorbed by the copper-chelated alkalescent resin, and the resin after adsorption saturation is regenerated through alkali liquor generated through electrochemistry and forms a sodium bicarbonate solution. The sodium bicarbonate solution enters a closed container filled with weakly acidic resin to be subjected to acidification reaction, carbon dioxide gas is generated through self-pressurization and conveyed to the water mineral separation and carbon sequestration unit under pressure driving, and calcium carbonate precipitates generated in the water are subjected to solid-state sequestration. According to the invention, integration of carbon capture, regeneration, conversion and sequestration and low-energy-consumption operation are realized, and the system is suitable for distributed carbon management application scenarios.

The present invention relates to a Carbon Capture Utilization and Storage (CCUS) opportunity through well rehabilitation. Aqua Freed® and Aqua Gard® are well-known well rehabilitation and preventive well maintenance technologies that utilize (inject into the subsurface in a methodical way) liquid CO2 for the purpose. The object of this invention was to quantify the storage capacity of Aqua Freed® and Aqua Gard® and establish their CCUS credentials.

The invention provides a method and system for detecting the carbon utilization rate of microorganisms based on a microwell plate respiratory system, and the method comprises the following steps: pre-culturing target microorganisms, and confirming the logarithmic growth phase of the target microorganisms; the method comprises the following steps: inoculating target microorganisms into a plurality of deep holes of a microporous plate respiratory system for culture, wherein each deep hole in the microporous plate respiratory system comprises a bacterial liquid containing a specified carbon source; detecting the initial biomass in the bacterial liquid and the initial carbon dioxide value in the microplate respiratory system at the beginning of culture, and detecting the final biomass in the bacterial liquid and the final carbon dioxide value in the microplate respiratory system at the end of culture; calculating the growth rate of the target microorganisms according to the initial biomass and the end biomass; calculating the respiration rate of the target microorganism according to the initial carbon dioxide value, the end carbon dioxide value and the growth rate; and calculating the carbon utilization rate of the target microorganism according to the growth rate and the respiration rate. The problem that the carbon utilization rate of species level microorganisms is difficult to obtain is solved.

The invention belongs to the technical field of microbial agents for soil improvement, and particularly relates to application of a microbial agent for promoting carbon immobilization of a red soil rice field. The microbial inoculum is rhodococcus erythropolis or a synthetic microbial inoculum of rhodococcus erythropolis and pseudomonas aeruginosa, and after the rice seedlings are transplanted to red soil for 3 days, 25mL of suspension liquid of the related microbial inoculum is inoculated to the rhizosphere of each rice seedling. According to the application, the rhizosphere microenvironment is improved, input of plant photosynthetic carbon into soil is activated, meanwhile, the carbon utilization efficiency and conversion capacity of soil in-situ microbial communities are remarkably improved, accumulation of microbial source carbon is promoted, the molecular composition structure of soluble organic matter is remodeled, and finally formation and accumulation of a soil carbon library are promoted and stabilized.

The application discloses a soil microbial carbon utilization efficiency detection method based on fermented bed litter, and particularly relates to the technical field of soil utilization efficiency detection, which comprises the following steps: obtaining target fermented bed litter samples and corresponding post-application soil samples; determining the target fermented bed litter samples and the post-application soil samples, and constructing a characteristic parameter set; determining the microbial carbon utilization efficiency of the post-application soil samples by using an isotope labeling method; training input variables and output variables by using a machine learning algorithm, establishing a microbial carbon utilization efficiency prediction model; and predicting the carbon utilization efficiency of the target fermented bed litter to be detected. Through sample data acquisition, characteristic parameter determination, carbon utilization efficiency benchmark value determination, prediction model construction and training, and carbon utilization efficiency prediction, the application constructs a soil microbial carbon utilization efficiency detection method, and solves problems such as low detection efficiency, insufficient detection pertinence and accuracy, and lack of an efficient prediction system.

The application discloses a kind of visual straw utilization characteristic analysis method and system, belong to soil carbon emission field, the method includes: collection soil physical and chemical property data and the characteristic data of different types of rotten straw, and the data collected are preprocessed, and integrated database is obtained by construction;The data in integrated database is processed by biological carbon utilization characteristic analysis model, simulates the dynamic process of soil carbon cycle after corresponding type of rotten straw is applied, obtains key variable data;According to the key variable data calculated, traverse the time series in integrated database, calculate carbon sequestration efficiency, microbial activity and physical protection intensity, obtain enhanced time series data, use enhanced time series data and key variable data as data source, and render to obtain visual diagram.The application improves the calculation accuracy and accuracy of soil carbon emission flux and accumulation.

The invention discloses a visual straw utilization characteristic analysis method and system, and belongs to the field of soil carbon emission.The method comprises the steps that soil physicochemical property data and characteristic data of different types of decomposed straw are collected, the collected data are preprocessed, and a comprehensive database is constructed; processing the data in the comprehensive database through the biological carbon by utilizing a characteristic analysis model, and simulating a soil carbon cycle dynamic process after applying the decomposed straws of the corresponding type to obtain key variable data; and traversing the time sequence in the comprehensive database according to the calculated key variable data, calculating carbon sequestration efficiency, microbial activity and physical protection intensity to obtain enhanced time sequence data, and rendering by taking the enhanced time sequence data and the key variable data as data sources to obtain a visualization graph. According to the method, the calculation precision and accuracy of the soil carbon emission flux and cumulant are improved.

According to the method for preparing methanol through biomass supercritical carbon dioxide gasification, supercritical carbon dioxide serves as a gasifying agent at high temperature, cracking of biomass macromolecules can be promoted, and generation of heavy tar is reduced. In the gasification stage, supercritical carbon dioxide reacts with carbon in biomass, and solid-phase carbon is converted into gas-phase CO, so that the carbon utilization rate is remarkably increased. Supercritical carbon dioxide is used as a green solvent to replace a traditional gasifying agent, nitrogen dilution or extra air separation energy consumption is avoided, meanwhile, part of CO2 is stored, carbon emission is reduced, and therefore the economical efficiency and environment friendliness of the whole process are improved.

This invention pertains to oil and gas development and carbon utilization, specifically relating to a process for synergistic methane production enhancement based on CO2 electrochemical reduction and microbial synthesis. The process first converts CO2 into a formic acid donor liquid in an electrochemical reduction system. Then, *Methanobacterium formic acid* is inoculated into an anaerobic culture medium with formic acid as the primary electron donor for activation and culture. Subsequently, the resulting formic acid donor liquid, methanogenic microbial activation liquid, Fe / Ni synergistic activation components, and nutrients are mixed to prepare a synergistic production enhancement injection fluid. This fluid is then injected into the target coal seam via staged fracturing and slug injection. After injection, the well is shut in for cultivation and production is resumed, with supplementary injections performed as needed. This invention organically combines CO2 resource conversion, microbial activation, coal seam injection, and sustained production enhancement, improving electron donor supply efficiency and methane generation efficiency, improving coal seam seepage conditions, enhancing sustained production enhancement in low-permeability coal seams, and expanding the resource utilization of CO2 in coalbed methane development.

This invention provides a uracil-producing strain, its construction method, and its application. The strain utilizes CRIPSR / Cas9 gene editing technology to produce... E. coli On the UR14 genome, firstly by knocking out psuG Gene, black Gene, rutA Genes and upp Genes were introduced to block the breakdown of uracil; then, the uridine phosphorylase gene was overexpressed. udp and pyrimidine-5'-nucleotide nuclease gene ppnN This synergistically enhances the synthesis and accumulation of uracil; finally, overexpression of the phosphoribosyltransferase gene... pgm, Further enhancing the conversion of the byproduct 1-phosphate ribose into the precursor 5-phosphate ribose-1-pyrophosphate improves carbon utilization. The resulting strain exhibits good genetic stability and high fermentation yield, enabling stable production of uracil and demonstrating broad application prospects.

Provided are systems and methods for converting C1 substrates to products contain more than one carbon, without producing central metabolic building blocks as intermediate products. In an embodiment, system / method can include a biochemical pathway enabling an orthogonal platform for C1 utilization based on formyl-CoA elongation (FORCE) reactions. In an embodiment, the system / method can include acyloin condensations between formyl-CoA and carbonyl-containing molecules. In an embodiment, the system / method can include a reactions catalyzed by the enzyme 2-hydroxyacyl-CoA lyase (HACL).

The invention discloses a calcium-based carbon capture and carbon utilization system of a waste incineration power plant and a control method, and relates to the field of carbon capture of waste incineration power plants, and the calcium-based carbon capture and carbon utilization system comprises a calcium-based carbon capture system and a methanol synthesis system. The calcium-based carbon trapping system is composed of a flue gas temperature adjusting and purifying device, a carbonization furnace, a first cyclone separator, a calcining furnace, a second cyclone separator, a carbon dioxide purifying and compressing device and a carbon dioxide buffer tank, and trapping and purifying of carbon dioxide are achieved through the circulating purifying, carbonizing and calcining processes of flue gas; the methanol synthesis system is composed of a methanol synthesis device, a quench tower, a flash tank, a methanol light component removal tower, a methanol rectification tower, a condenser and a methanol storage tank, carbon dioxide purified in a buffer tank reacts with methane, high-purity methanol is obtained through multi-stage cooling and rectification, and carbon capture and carbon resource utilization are achieved. According to the method, trapping, conversion and resource utilization of the carbon dioxide in the flue gas of the waste incineration power plant are realized based on the calcium-based circular reaction.

The invention provides a multi-factor collaborative ecological system carbon-water utilization efficiency space optimization regulation and control regionalization method and system, and relates to the crossing field of ecology and computer technology.The method comprises the steps that firstly, carbon-water utilization efficiency collaborative element data of an ecological system is collected, and a multi-factor collaborative conduction network is constructed by analyzing an element interaction path and injecting a conduction rule; then, a spatial conduction link matrix is generated based on the multi-factor collaborative conduction network in combination with regional geographic spatial attributes, then dynamic adaptation processing is carried out on an initial spatial unit of a region where the ecological system is located on the basis of the spatial conduction link matrix, a basic zoning unit with element conduction adaptation capacity is generated, and on the basis, the spatial conduction link matrix is dynamically matched with the basic zoning unit; and after the element cyclic feedback flow is constructed according to the operation state of the multi-factor collaborative conduction network, the dynamically adjusted basic zoning unit and the element cyclic feedback flow data are integrated to form a space optimization regulation and control zoning scheme, multi-factor collaboration and ecological system dynamic change are fully considered, and the carbon-water utilization efficiency of the ecological system is effectively improved.

It is provided a process for optimizing syngas carbon utilisation and syngas purity from a varying scrubbed syngas source before feeding into a syngas conversion unit comprising the steps of feeding a scrubbed syngas into a purification unit comprising at least one absorption unit to remove CO2 from the scrubbed syngas, producing a clean CO+ H2 +CO2 syngas stream and a CO2 rich stream; and mixing the clean CO+ H2 +CO2 syngas stream with hydrogen producing a balanced syngas stream, wherein the balanced syngas stream meet the stoichiometric ratio and purity requirement of the syngas conversion unit.

The application provides a preparation method of high specific surface area activated carbon, which comprises extracting a raw material capable of producing high specific surface area activated carbon from coal liquefaction pitch, and obtaining high specific surface area activated carbon through alkali activation. The application realizes resource utilization and harmless treatment of the raffinate, and achieves environmental protection, low-carbon utilization and end carbon fixation, and has a broad development prospect.