931results about "Carbon monoxide" patented technology

The invention discloses preparation of a high-performance carbon matrix embedded iron-based catalyst based on a metal organic framework precursor and application of the high-performance carbon matrix embedded iron-based catalyst in reverse water-gas shift reaction. In the preparation process, commercially available 1, 3, 5-trimesic acid iron (the chemical formula is C9H3FeO6, abbreviated as Fe-BTC) is selected as a raw material, pyrolysis treatment is carried out in an argon atmosphere, then air passivation is carried out, and finally the high-performance carbon matrix embedded iron-based catalyst based on the metal organic framework precursor is successfully prepared. The MOF-600 has excellent performance in many catalysts, the carbon dioxide production rate reaches 24.0 mmol CO.gcat <-1 >. S <-1 > at the temperature of 400 DEG C in a reverse water gas shift reaction, the performance is remarkably superior to that of an existing non-noble metal catalyst, and extremely high catalytic efficiency and application potential are shown.

The invention discloses a lanthanum-doped CuMgAl catalyst as well as a preparation method and application thereof, and belongs to the technical field of catalysts. The preparation method of the lanthanum-doped CuMgAl catalyst comprises the following steps: adding a copper salt, a magnesium salt, an aluminum salt and a lanthanum salt into water to obtain a first solution; adding a precipitator into water to obtain a second solution; adding the second solution into the first solution to adjust the pH value to 10.5 to obtain a mixed solution, stirring the mixed solution to generate a co-precipitation reaction, after the reaction is completed, carrying out aging treatment to promote growth and structure ordering of layered double hydroxide crystals, and then carrying out calcination treatment to convert a layered double hydroxide precursor into an oxide, thereby obtaining the layered double hydroxide. And the lanthanum-doped CuMgAl catalyst is obtained. The lanthanum-doped CuMgAl catalyst prepared by the preparation method disclosed by the invention has excellent activity and stability.

The invention relates to a method for preparing carbon monoxide by reverse water gas shift, which comprises the following steps: under the catalytic action of a supported catalyst, carrying out reverse water gas shift reaction, carrying out pressure swing adsorption treatment on mixed gas generated in the reaction process, and desorbing to obtain carbon monoxide. By coupling the reverse water gas shift reaction and the pressure swing adsorption process and exerting the synergistic effect of the reverse water gas shift reaction and the pressure swing adsorption process, efficient and rapid separation of carbon monoxide is realized, the reverse water gas shift reaction is promoted to be carried out in the forward direction, the reaction requirement of reverse water gas shift is reduced, the reverse water gas shift reaction is carried out under relatively mild conditions, and the reaction efficiency is improved. The long-period efficient conversion of carbon dioxide is realized, and the conversion rate of carbon dioxide and the selectivity of carbon monoxide are further improved.

The application provides a reverse water gas shift catalyst, a preparation method and application thereof, and the reverse water gas shift catalyst prepared by the preparation method has excellent catalytic activity and high CO selectivity in a reverse water gas shift reaction. The preparation method comprises the following steps: contacting a precipitating salt solution with a precipitant aqueous solution and performing co-precipitation, and simultaneously controlling the reaction temperature to be 40-80 DEG C and the pH to be 6-8; optionally performing aging after the co-precipitation is completed; filtering the obtained precipitate to obtain a filter cake, washing the filter cake, then drying the filter cake, and calcining the filter cake at 300-500 DEG C to obtain the reverse water gas shift catalyst; wherein the precipitating salt solution is a mixed aqueous solution of a soluble salt of divalent metal ions and a soluble salt of trivalent metal ions, the divalent metal ions are selected from divalent ions of Mg and / or Zn, and the trivalent metal ions are selected from trivalent ions of Al, In and / or Ga.

A process for the production of carbon monoxide is described. The process involves the electrochemical desorption of carbon dioxide and oxygen from a solution containing a metal bicarbonate and the formation of carbon monoxide from the carbon dioxide. The carbon monoxide produced can be used in a process for the formation of syngas.

The invention provides a ruthenium-based carbon dioxide hydrogenation catalyst based on MoS2 as well as a preparation method and application of the ruthenium-based carbon dioxide hydrogenation catalyst. The carbon dioxide hydrogenation catalyst comprises silicon dioxide, ruthenium and molybdenum disulfide, and the ruthenium and the molybdenum disulfide are loaded on the silicon dioxide. Therefore, in the carbon dioxide hydrogenation catalyst, the molybdenum disulfide is used as an auxiliary agent, so that the generation of methane (CH4) can be remarkably inhibited while a high CO2 conversion rate is maintained, the reversion of a product from CH4 leading to carbon monoxide (CO) leading is realized, and the inherent core defects that an existing Ru-based CO2 hydrogenation catalyst is too high in methanation activity, low in CO selectivity and difficult to consider activity-selectivity at the same time are overcome.

The invention belongs to the technical field of catalysts, and particularly relates to a metal-covalent organic framework photocatalyst for photocatalytic CO2 reduction as well as a preparation method and application of the metal-covalent organic framework photocatalyst. According to the invention, a novel covalent organic framework material with symmetrical metal ion coordination is firstly synthesized, and the covalent organic framework material is found to have obviously higher performance for photocatalytic CO2 reduction compared with a single COF (Covalent Organic Framework). The invention further designs and synthesizes a covalent organic framework material with asymmetric metal ion coordination, and finds that the photocatalytic CO2 reduction performance of the covalent organic framework material is far better than that of a covalent organic framework material with symmetric coordination, so that an original solution can be provided for designing a new generation of high-performance and low-cost artificial photosynthesis catalyst.

This invention discloses a method for preparing a nitrogen-doped titanium dioxide and carbon hollow sphere heterojunction photocatalyst, comprising the following steps: 1) preparing a carbon hollow sphere core-shell structure sample based on melamine-formaldehyde nanospheres; 2) preparing a TiO2@carbon core-shell structure sample using the carbon hollow sphere core-shell structure and tetrabutyl titanate as the reaction system; 3) using a one-step method to simultaneously dope nitrogen into the TiO2@carbon core-shell structure to form an N-TiO2@N-doped carbon hollow sphere heterojunction. This invention provides a method for preparing a nitrogen-doped titanium dioxide@carbon hollow sphere heterojunction photocatalyst and its application. This method achieves uniform nitrogen doping and effective composite of TiO2 and carbon hollow spheres through specific steps, and the prepared photocatalyst exhibits excellent photocatalytic performance under both visible and ultraviolet light.

The invention discloses an Ag / Cu2O / Bi2WO6 heterojunction photocatalyst as well as a preparation method and application thereof, and belongs to the technical field of photocatalytic materials. The Ag / Cu2O / Bi2WO6 heterojunction photocatalyst is prepared from the following components in percentage by mass: 10 to 30 percent of Cu2O. Bi2WO6 is prepared through solvothermal reaction, then Ag is generated in situ through a heating and stirring method, finally, the Ag / Cu2O / Bi2WO6 heterojunction photocatalyst is synthesized through heating and stirring, and the Ag / Cu2O / Bi2WO6 heterojunction photocatalyst can be applied to the field of photocatalytic reduction of CO2. Compared with an existing photocatalyst, the Ag / Cu2O / Bi2WO6 heterojunction has good yield and stability, and a strong built-in electric field at the heterojunction interface can accelerate separation and transfer of carriers and enhance adsorption and activation of CO2, so that the activity of photocatalytic reduction of CO2 is enhanced.

The application relates to the technical field of catalyst preparation, in particular to an in-situ formed FeO x / Fe3C catalyst as well as a preparation method and application thereof. The FeO x / Fe3C catalyst provided by the application is a heterogeneous composite structure composed of surface iron oxide (FeO x ) and bulk iron carbide (Fe3C), breaks through the limitation of only focusing on a single phase, systematically reveals the dynamic structure evolution law from the surface to the bulk, and clarifies the internal correlation with the reaction mechanism. Based on the synergistic circulation mechanism from the surface to the bulk, the FeO x / Fe3C catalyst exhibits excellent catalytic performance and stability in the reverse water gas shift reaction, which is superior to most of the catalyst systems reported at present.

A hydrogen production system for producing a hydrogen gas product includes a geologic hydrogen source configured to provide a feedstock comprising hydrogen, nitrogen, and helium and purification equipment comprising two or more of: a pressure swing adsorption (PSA) device; a guard bed; a separation membrane; a reactive membrane; or a cryogenic separation device. The purification equipment is configured to receive the feedstock from the geologic hydrogen source and produce a hydrogen gas product, and production of the hydrogen gas product exhibits a carbon intensity score less than 3.0 kg CO2 eq / kg H2.

Provided herein are apparatuses and methods of releasing or converting a gas. In some embodiments, an apparatus may include a gas flow cell having an inlet and an outlet for flowing a gas through said gas flow cell; a structured material within said gas flow cell, wherein the structured material has an electrical conductivity selected from the range of 3×10−15 S / m to 6.3×107 S / m; and a plasma source integrated with said gas flow cell, the plasma source being configured to generate a plasma within a portion of the gas flow cell, the plasma source comprising: a first electrode and a second electrode within said gas flow cell; and a power source configured to provide voltage to the first and second electrodes.

The invention relates to a Bi19Br3S27-NiSX catalyst. In the Bi19Br3S27-NiSX catalyst, an amorphous phase NiSX is loaded on a crystal phase Bi19Br3S27. The preparation method of the catalyst comprises the following steps: taking bismuth salt and nickel salt as raw materials, dissolving the raw materials into ethylene glycol, and then adding a sulfur source and a bromine source to obtain a mixed solution; and carrying out solvothermal reaction on the mixed solution to obtain the Bi19Br3S27-NiSX catalyst. The invention relates to a Bi19Br3S27-NiSX catalyst which is applied to production of ethylene through photo-thermal CO2 reduction. The catalyst has the beneficial effects that the catalyst has excellent sunlight full-spectrum light absorption property and photo-thermal conversion capacity, the surface activity of the catalyst is remarkably improved through introduction of the NiSX amorphous phase, the electron transfer efficiency in catalytic reaction is enhanced, the light energy utilization efficiency is improved through the synergistic effect of the multi-component catalyst, and CO2 is subjected to high-selectivity catalytic reduction to produce ethylene.

The invention relates to the technical field of photocatalysis, in particular to a terbium and cerium doped MIL-177 confinement multi-metal cluster photocatalyst, which is prepared from terbium / cerium double metal elements, an MIL-177 metal organic framework, a multi-tungsten phosphomolybdate nanocluster and L-cysteine, according to the photocatalyst, an MIL-177 metal organic framework modified by terbium / cerium double metal elements is used as a substrate, a multi-tungsten phosphomolybdate nanocluster is used as an active center, microwave hydrothermal synthesis and solvothermal synthesis are performed, and L-cysteine surface modification is performed. Double metal elements terbium and cerium doped aluminum-based metal organic frameworks are combined with multi-tungsten phosphomolybdate nanoclusters, and surface modification is performed through L-cysteine, so that the visible light absorption range is widened, efficient separation of photo-generated charges is realized, catalytic active sites are increased, and the efficiency and selectivity of photocatalytic reduction of carbon dioxide are improved.

An ironmaking method comprising the production of hot metal (2) and of a blast furnace top gas (10), the method comprising the steps of capturing at least a part of the top gas (10), separating CO2 from the captured top gas (10) so as to produce a CO2-rich stream (12) and a CO2-lean stream (11), mixing the CO2-rich stream (12) with a H2 makeup stream (30) and subjecting the obtained CO2 / H2 gas mixture to a reverse water gas shift reaction in a reactor (3) to produce a reducing stream (13) comprising CO and H2, separating H2 from the reducing stream to produce a CO- rich stream (14) and an H2-rich stream (15), mixing the H2-rich stream (15) with the CO2-rich stream (12) or with the CO2 / H2 gas mixture in the reactor (3) and subjecting the obtained gas mixture to the reverse water gas shift reaction and feeding at least a portion of the CO-rich stream 14 (13) to at least one chemical or biochemical plant (4) to produce one or more chemical products (16).

The invention relates to the technical field of photocatalysts, in particular to a bismuth-defect bismuth oxybromide-sulfur-defect bismuth sulfide bromide heterojunction and a preparation method and application thereof in photocatalytic CO2 reduction, Bi (NO3) 3.5 H2O, thiourea, cetyltrimethylammonium bromide (CTAB) and the like are used as raw materials, and the VBi-Bi4O5Br2 / VS-Bi19Br3S27 heterojunction is prepared through a two-step hydrothermal method. According to the VBi-Bi4O5Br2 / VS-Bi19Br3S27 heterojunction, bismuth vacancies and sulfur vacancies are introduced, the visible light absorption range of the material is expanded through a proper amount of double vacancies, more electron capture centers are provided, and the separation efficiency of photo-induced electrons and the vacancies is improved, so that the VBi-Bi4O5Br2 / VS-Bi19Br3S27 heterojunction has excellent performance of photocatalytic reduction of CO2, and the preparation method of the VBi-Bi4O5Br2 / VS-Bi19Br3S27 heterojunction is suitable for large-scale production and application of the VBi-Bi4O5Br2 / VS-Bi19Br3S27 heterojunction. CO2 can be reduced into a single product CO, and the photoreduction efficiency of the carbon dioxide can be improved.

The invention relates to a method for producing methane through biomass hydrogasification. The method comprises the following steps: S1, the water electrolysis hydrogen production device produces hydrogen and oxygen; s2, fully mixing the biomass particles with steam in a biomass hydrogenation bubbling fluidized bed reactor, and hydrogen and oxygen from a water electrolysis hydrogen production unit for reaction to generate crude synthesis gas rich in methane; s3, cooling the crude synthesis gas rich in methane in a waste heat recovery unit and producing cooled crude synthesis gas and steam; s4, removing fly ash and part of impurities from the cooled crude synthesis gas in a dust removal washing unit to obtain washed crude synthesis gas; s5, converting the washed crude synthesis gas in a carbon monoxide conversion unit to obtain converted synthesis gas; s6, removing carbon dioxide and other impurities from the converted synthesis gas in a synthesis gas purification unit to obtain purified synthesis gas; s7, separating 0-55vol% of the purified synthesis gas in a gas separation unit to generate carbon-rich gas and hydrogen-rich gas; and S8, generating methane from the residual purified synthesis gas in a methanation unit.

The invention provides a bismuth ferrite-graphite phase carbon nitride photocatalyst and a preparation method and application thereof, and relates to the technical field of photocatalysis, the preparation method comprises the following steps: dissolving a bismuth source and an iron source in a solvent, mixing with a mineralizing agent, and carrying out a hydrothermal synthesis reaction to obtain bismuth ferrite; performing first roasting treatment on the nitrogen-containing organic matter precursor to obtain graphite-phase carbon nitride; and mixing bismuth ferrite and graphite phase carbon nitride, and carrying out grinding treatment and second roasting treatment to obtain the bismuth ferrite-graphite phase carbon nitride photocatalyst. According to the preparation method, bismuth ferrite and graphite-phase carbon nitride which are prepared respectively are compounded, a Z-type heterojunction can be constructed at an interface of the bismuth ferrite and the graphite-phase carbon nitride, an internal electric field is formed, so that photo-induced electrons and holes are efficiently separated, compounding of the photo-induced electrons and the holes is effectively inhibited, and finally the oxidation-reduction capacity of the material is remarkably enhanced; therefore, the photocatalyst shows excellent photocatalytic performance, high selectivity and good cycle stability.

The invention discloses a copper oxide modified bismuth vanadate photocatalyst as well as a preparation method and application thereof, and belongs to the technical field of photocatalytic reduction of carbon dioxide. The method comprises the following steps: synthesizing a BiVO4 monomer through a hydrothermal method, then mixing and stirring the BiVO4 monomer and a Cu-MOF precursor solution, carrying out electrostatic adsorption compounding, then carrying out calcination treatment to convert Cu-MOF into CuO, loading the CuO on the surface of BiVO4, forming a p-n heterojunction, and preparing the CuO / BiVO4 composite photocatalyst. According to the catalyst, separation of photon-generated carriers is effectively promoted by constructing a heterojunction, the CO2 adsorption and activation capacity is enhanced, and the CO2 photocatalytic reduction performance is remarkably improved; experiments show that the CO yield of the prepared catalyst reaches 36.77 [mu] mol.g <-1 >. H <-1 > in a reaction for 5 hours, which is about 5.7 times that of pure BiVO4, and the catalyst has good stability; the method is simple in process, low in cost and suitable for efficient photocatalytic reduction of CO2 to prepare fuel.

The application belongs to the technical field of catalysts, and relates to a supported molybdenum carbide catalyst, which comprises a carrier and an active component; the carrier is MY molecular sieve, and the active component is molybdenum carbide; M is one or two of Co, Ni and Cu. A preparation method thereof is also disclosed, in which a molybdenum source solution is mixed with MY molecular sieve, dried, calcined, and then carbonized in a reducing mixed gas atmosphere to obtain the supported molybdenum carbide catalyst. The Y molecular sieve has good hydrothermal stability, a typical microporous structure, a large specific surface area, and can better disperse the active substance, so that more active components are exposed on the surface and participate in the reaction, and at the same time, smaller and more dispersed metal particles are obtained, which can effectively avoid the contact between the metal particles and the molybdenum carbide; on the other hand, the metal M is beneficial to H2 activation, improves the H2 dissociation capacity, and is helpful to remove the hydroxyl groups remaining on the surface of the molybdenum carbide during the reaction.

The utility model relates to a carbon dioxide comprehensive utilization system taking dry quenching as a core. The carbon dioxide comprehensive utilization system comprises a dry quenching circulation system, a carbon dioxide preparation system, a carbon monoxide separation device and a hydrogen separation device, the dry quenching circulating system comprises a dry quenching furnace, a primary dust remover, a boiler, a secondary dust remover and a circulating fan which are sequentially connected through a circulating gas pipeline; the carbon monoxide separation device and the hydrogen separation device are connected with a circulating gas pipeline at the downstream of the circulating fan; the carbon dioxide preparation system comprises a coke oven flue, a carbon dioxide separation device and a chimney. According to the system disclosed by the utility model, carbon dioxide separated from industrial waste gas is used as dry quenching circulating gas, a new way for consuming carbon dioxide is developed, the emission of carbon dioxide is reduced, the safety of dry quenching production is ensured, and carbon monoxide and hydrogen are obtained.

The present disclosure relates to a method for converting carbon dioxide into carbon monoxide comprising: producing atomic oxygen, providing carbon dioxide to be converted, mixing the carbon dioxide with the atomic oxygen within a mixing area such that the atomic oxygen can interact with the carbon dioxide for forming carbon monoxide within the mixing area through a first CO producing reaction: C02+0→C0+02, supplying the atomic oxygen into the mixing area at a first supply rate and supplying the carbon dioxide into the mixing area at a second supply rate, defining the first supply rate and the second supply rate such that a ratio between the first supply rate and the second supply rate remains within a pre-defined lower and upper threshold, and extracting carbon monoxide from the mixing area. The present disclosure also relates to an apparatus for converting carbon dioxide into carbon monoxide.

The invention discloses a synthesis method and application of an S-type WO3-x-coated CoIn2S4 heterojunction hollow sphere photocatalyst, and aims to solve the problem of low photocatalytic efficiency of an existing WO3 photocatalyst. The synthesis method comprises the following steps: 1, dissolving Pb (AC) 2 and Na2WO4 in ethylene glycol, and carrying out solvothermal reaction to obtain a spherical PbWO4 material; 2, dipping the spherical PbWO4 material in a nitric acid solution; 3, carrying out calcination and annealing treatment on the hollow spherical H2WO4; 4, a Co (NO3) 2.6 H2O solution and a 2-methylimidazole solution are injected into the WO3-x suspension, precursor powder is collected, InCl3. 4H2O and TAA are added into a precursor powder mixed solvent, and a solvothermal reaction is carried out; the WO3-x-coated CoIn2S4 heterojunction hollow sphere photocatalyst prepared by the preparation method disclosed by the invention shows excellent CO2 photocatalytic reduction activity under the irradiation of simulated sunlight.

The invention relates to the technical field of photocatalysis and nano materials, in particular to ZnO / CuO multistage microspheres with atomic-scale heterogeneous interfaces and oxygen vacancies as well as a preparation method and application of the ZnO / CuO multistage microspheres. The preparation method comprises the following steps: jointly dissolving soluble zinc salt, soluble copper salt and 1, 3, 5-benzene tricarboxylic acid in a composite solvent composed of glycerol and absolute ethyl alcohol, and carrying out solvothermal synthesis reaction to obtain Zn / Cu-MOFs multistage microspheres; the Zn / Cu-MOFs multistage microspheres are used as a precursor, and the ZnO / CuO multistage microspheres with atomic-scale heterogeneous interfaces and oxygen vacancies are obtained through calcination treatment. According to the preparation method disclosed by the invention, a solvothermal method is combined with a calcining process, so that uniform compounding and tight combination of ZnO and CuO are realized, the oxygen vacancy concentration of the ZnO / CuO multistage microspheres with atomic-scale heterogeneous interfaces and oxygen vacancies is effectively regulated and controlled, and a novel functional material which is high in performance and easy to prepare is provided for the field of photocatalysis.

The invention provides a manganese-based tandem catalyst as well as a preparation method and application thereof. The manganese-based tandem catalyst comprises a reverse water gas shift catalytic unit (CO2 + H2-CO) and a Fischer-Tropsch synthesis catalytic unit (CO + H2-CxHyOz), which are called MnO-FTS system for short, the active center of the reverse water gas shift catalytic unit is MnO; the Fischer-Tropsch synthesis catalytic unit comprises any one of a Cu / ZnCr-based catalyst, a FeNaAl-based catalyst, a Ni / SiO2 catalyst and a Co / SiOO catalyst. By constructing a novel efficient and synergistic MnO-FTS catalyzing system, directional conversion from COhydrogenation to liquid fuel is achieved, meanwhile, side reactions prone to occurring in direct COhydrogenation are avoided, and the overall reaction efficiency and product selectivity are improved.

The invention discloses a carbon dioxide catalytic decomposition material which is characterized in that the main effective component of the carbon dioxide catalytic decomposition material is biomass activated carbon / Rh2O3 / NiO phase. The material provided by the invention can more efficiently and stably realize the treatment of decomposing and converting carbon dioxide into carbon monoxide, so that the material is more beneficial to large-scale production and preparation.

The invention discloses a methane dry reforming catalyst and a preparation method thereof, and belongs to the technical field of catalysts.The catalyst is composed of 480 parts to 600 parts of Fe2O3, 60 parts to 75 parts of NiO, 1020 parts to 1530 parts of Al2O3, 16.2 parts to 82.5 parts of La2O3 and 9 parts to 18 parts of Gd2O3, and the catalyst is of an integral aerogel structure with a honeycomb-shaped or latticed macroscopic morphology; the preparation method comprises the following steps: S1, preparing a precursor solution; s2, adding a gel accelerant; s3, carrying out integral gel forming; s4, aging the wet gel; s5, solvent replacement; s6, performing supercritical drying; s7, calcining; according to the invention, active site design, a structure stabilization strategy and material form innovation are closely combined, and the prepared monolithic aerogel oxygen carrier not only shows a high CH4 / CO2 conversion rate and an ideal H2 / CO ratio, but also has excellent cycle stability and extremely low bed pressure drop; the core problems that in the prior art, the activation capacity and the carbon removal capacity are not matched, the high-temperature cycling stability is poor, and the engineering applicability of a powder material is limited are effectively solved.

The present invention relates to a carbon dioxide reduction photocatalyst, its preparation method, and application. The catalyst comprises PCN-224(Cu) and BiVO4 nanosheets supported thereon. The preparation method comprises the following steps: uniformly dispersing BiVO4 in N,N-dimethylformamide, sequentially adding copper tetrakis-(4-carboxyphenyl)porphyrin, ZrCl4, and benzoic acid, and reacting to produce the carbon dioxide reduction photocatalyst. Compared with the prior art, the present invention synthesizes a novel rod-shaped PCN-224(Cu)@BiVO4 composite photocatalyst for photocatalytic CO2 reduction for the first time through a convenient solvothermal method. The prepared photocatalyst has high catalytic activity, selectivity, and stability, and has potential application value in solar photocatalytic CO2 conversion.

The present application provides an apparatus and method for recovering nitrogen discharged from waste water by washing with liquid nitrogen, comprising: a U-tube circulating water heater, a first pipeline, and a second pipeline. The inlet end of the U-tube circulating water heater is connected to the middle section of the second pipeline through the first pipeline, and the outlet end is used to connect to the fuel gas pipeline network; one end of the second pipeline is connected to the hydrogen separator; a control valve and a shut-off valve are provided on the second pipeline, and the control valve is located between the first pipeline and the hydrogen separator, and the shut-off valve is located between the first pipeline and the end of the second pipeline away from the hydrogen separator. The present invention effectively recovers CO in the discharged nitrogen. Each set of equipment can recover more than 170 NM3 / h of fuel gas and 100 NM3 / h of effective gas, with an annual benefit of more than 640,000 yuan, and a significant energy-saving effect. At the same time, due to the reduction of cold torch discharge, steam consumption is indirectly saved, and the phenomenon of long-term ice accumulation in the buffer tank is completely eliminated, which greatly improves the sanitation around the buffer tank and on the ground.

The present invention provides a method for producing carbon monoxide, which includes a step of generating carbon monoxide by a decomposition reaction of a raw material of at least one of formic acid or a formic acid alkyl ester in the presence of a solid acid catalyst. The solid acid catalyst has a BET specific surface area of 590 m 2 / g or less.