摘要:
The present invention relates to a gasification process and system, wherein a dryer integrated with a water-gas-shift catalyst is disposed in front of a gasifier.
摘要:
A method for steam reforming carbonaceous material into a synthesis gas by using a single stage process of heating the carbonaceous material in a rotary kiln at an elevated reforming temperature so that the carbonaceous material undergoes substantially complete conversion to synthesis gas or by using a dual stream, multiple-stage process of heating carbonaceous material to a reforming temperature, below that at which metallic materials will typically vaporize, to form gaseous and solid materials; further reforming the gaseous materials in a second stage reforming kiln at an elevated reforming temperature to form synthesis gas; and separating carbon char from the solid material for further processing.
摘要:
The present disclosure provides methods and devices for preparing the fuel gas used. A device may include a furnace body, a tower type synchronous roller extruding machine with a circular ladder groove mold that is mounted at the upper end of the furnace body. The tower type synchronous roller extruding machine is provided with a bucket, the bucket is in airtight connection with the furnace body, and a first transmission shaft is mounted in the bucket. At least two tower type synchronous rollers are mounted on the first transmission shaft, and the tower type synchronous rollers are symmetrically distributed on both sides of the first transmission shaft.
摘要:
The invention is directed to a process to prepare a hydrogen rich gas mixture from a solid sulphur- and halogen-containing carbonaceous feedstock. The process involves the following steps. Step (a): gasification of the solid carbonaceous feedstock with an oxygen-containing gas to obtain a gas mixture comprising halogen compounds, sulphur compounds, hydrogen and at least 50 vol. % carbon monoxide, on a dry basis. Step (b): contacting the gas mixture with a quench gas or quench liquid to reduce the temperature of the gas mixture to below 900° C. Step (c) contacting the gas mixture with water having a temperature of between 150 and 250° C. to obtain a gas mixture comprising between 50 and 1000 ppm halogen and having a steam to carbon monoxide molar ratio of between 0.2:1 and 0.9:1. Step (d): subjecting the gas mixture obtained in step (c) to a water gas shift reaction wherein part or all of the carbon monoxide is converted with the steam to hydrogen and carbon dioxide in the presence of a catalyst as present in one fixed bed reactor or in a series of more than one fixed bed reactors and wherein the temperature of the gas mixture as it enters the reactor or reactors is between 190 and 230° C. Step (e): carbon dioxide and sulphur compounds are separated from the shifted gas mixture obtained in step (d) by contacting the shifted gas mixture with a solvent comprising dialkyl ethers of polyethylene glycol.
摘要:
An apparatus for generating electrical power in which a synthesis gas stream generated in a gasifier is partially oxidized, expanded and thereafter, is combusted in an oxygen transport membrane system of a boiler. The combustion generates heat to raise steam to in turn generate electricity by a generator coupled to a steam turbine. The resultant flue gas can be purified to produce a carbon dioxide product.
摘要:
A method of generating electrical power in which a synthesis gas stream generated in a gasifier is combusted in an oxygen transport membrane system of a boiler. The combustion generates heat to raise steam to in turn generate electricity by a generator coupled to a steam turbine. The resultant flue gas can be purified to produce a carbon dioxide product.
摘要:
A method for steam reforming carbonaceous material into a synthesis gas by using a single stage process of heating the carbonaceous material in a rotary kiln at an elevated reforming temperature so that the carbonaceous material undergoes substantially complete conversion to synthesis gas or by using a dual stream, multiple-stage process of heating carbonaceous material to a reforming temperature, below that at which metallic materials will typically vaporize, to form gaseous and solid materials; further reforming the gaseous materials in a second stage reforming kiln at an elevated reforming temperature to form synthesis gas; and separating carbon char from the solid material for further processing.
摘要:
An apparatus for generating synthesis gas from waste organic materials that consists of a thermal reduction gasification reactor which is a rotary reactor having a drying and volatilizing zone for gasifying organic materials and a reformation zone for converting the gasified organic materials to synthesis gas. Solid waste organic material is fed to the reactor that heats the solid material to a temperature of about 600° C. to about 1000° C. The synthesis gas generated by the apparatus is substantially hydrogen and carbon monoxide. The apparatus is combined with an electrical generation system for making purified hydrogen and electricity. Alternatively, the synthesis gas can be used as a source for hydrogen. The synthesis gas is cleaned, the composition is shifted to enrich the content of hydrogen, and the hydrogen is isolated from the other gases that make up the synthesis gas. Alternatively, the synthesis gas can be fermented forming an organic alcohol and an organic acid.
摘要:
An ammonia and fertilizer production process is based on partial oxidation of fossil fuel, which co-produces polycarbonsuboxide. The four step process is low-cost and low-carbon-dioxide emission. It comprises the steps of reacting fossil fuel with oxygen in air and steam in an electric discharge plasma to produce a gas exit stream of polycarbonsuboxide, hydrogen with associated nitrogen (110); cooling the gas stream to condense and separate the polycarbonsuboxide as a solid polymer (120); compressing the gas stream to pressures for synthesis of ammonia (140); and, converting the gas stream to ammonia by employing a catalytic converter (150). Optional steps involve gas cleanup, which include removal of contaminants from the gas stream and adding hydrogen or nitrogen to the gas stream to adjust the ratio of hydrogen to nitrogen to three to one, respectively, prior to converting the gas stream to ammonia (130).
摘要:
The invention relates to a method and installation for producing liquid energy carriers from a solid carbon carrier by means of gasifying a solid carbon carrier. The installation is at least comprised of a drying device, a gasification apparatus, a synthesizing device for synthesizing the liquid energy carrier, a device for effecting the electrolysis of water for producing oxygen serving as a gasification agent and hydrogen for the synthesis process, and of a combustion apparatus, which is connected to the output of the gasification apparatus for carbon-containing gasification residues and to the oxygen outlet of the device for effecting the electrolysis of water. According to the invention, at least a portion of the waste steam from the drying device and at least a portion of the residual gas arising during synthesis are fed to the gasification process in the gasification apparatus. In addition, the carbon-containing residuals from the gasification apparatus and a portion of the oxygen produced in the device for effecting the electrolysis of water can be fed to a combustion apparatus, and the carbon dioxide-containing and oxygen-containing waste gas from the combustion apparatus can be fed to the combustion apparatus in the form of a gasification agent.