3 results about "Corex" patented technology

The application provides a method for preparing synthesis gas by non-catalytic partial oxidation of a COREX smelting gasifier, and relates to the technical field of synthesis gas preparation. The method is to take the dome region of the COREX smelting gasifier as a reaction zone, take oxygen and natural gas as raw material gas, spray the raw material gas into the dome region by a burner on the dome of the COREX smelting gasifier, and perform non-catalytic partial oxidation reaction of methane to prepare synthesis gas mainly composed of hydrogen and carbon monoxide. The application adopts a technical scheme of non-catalytic partial oxidation of natural gas accompanied by reforming reaction of natural gas, water vapor and carbon dioxide, which does not exist in the prior art. By controlling the structure of the oxygen / natural gas burner and the circulating dust injection burner and the composition of the raw material gas, in combination with the high-temperature and high-pressure environment and high-speed airflow of the dome region, good kinetic conditions are provided for the non-catalytic partial oxidation reaction of natural gas, and the method is simple to operate, low in cost, high in efficiency, beneficial to industrial large-scale production and popularization and use.

The application discloses a three-way joint structure of an updraft gas pipeline of a COREX melting gasifier and belongs to the technical field of metallurgical refractory materials. The three-way joint structure comprises a first pipeline section, a second pipeline section and a third pipeline section. The first pipeline section is located at the top of the updraft gas pipeline and adopts a vaulted structure. The second pipeline section is located around the updraft gas pipeline, adopts a thermal insulation layer as a bottom layer and adopts refractory bricks as working face bricks. The third pipeline section is configured as a bent structure and comprises special-shaped structure bricks and pipeline bricks which are spliced with each other. The three-way joint structure of the updraft gas pipeline can improve the bearing capacity of the pipeline and prolong the service life of the three-way joint of the gas pipeline by combining lightweight refractory castable and refractory clay bricks, thereby providing protection for the safe production of enterprises and providing guarantee for the generation and use of high-proportion gas.

The application provides a method for preparing synthesis gas by using a COREX smelting gasifier dome, and relates to the technical field of synthesis gas preparation. The method is characterized in that a heat exchanger is installed between a COREX smelting gasifier dome outlet gas pipeline and oxygen and natural gas pipelines, high-temperature sensible heat of dome gas is recovered by using the heat exchanger and is used for preheating of the oxygen and the natural gas; a dome area of the COREX smelting gasifier is used as a reaction zone, preheated oxygen and natural gas are used as raw material gas, the raw material gas is sprayed into the dome area by a burner of the COREX smelting gasifier dome, a non-catalytic partial oxidation reaction of methane is carried out, and synthesis gas mainly composed of hydrogen and carbon monoxide is prepared. The application provides good kinetic conditions for the non-catalytic partial oxidation reaction of the natural gas by the structural setting of an oxygen / natural gas burner and a circulating dust injection burner, the structural setting of the heat exchanger and the control of the composition of the raw material gas, and is beneficial to industrial production practice.