Preparation of high-btu town gas |
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| 申请号 | JP14290391 | 申请日 | 1991-06-14 | 公开(公告)号 | JPH04366200A | 公开(公告)日 | 1992-12-18 |
| 申请人 | Mitsubishi Petrochem Eng Co Ltd; Seibu Gas Kk; | 发明人 | KANAMARU TOSHIHISA; URANO SHOJI; KINOSHITA NATSUO; OTA HIROSHI; KAWASAKI HARUJI; NISHINO CHIKASHI; | ||||
| 摘要 | PURPOSE:To provide a process capable of facilitating the start-up, shutdown and load change of the plant in a short period of time as well as simplifying the equipment, improving gasification efficiency and stabilizing the quality in the production of a high BTU town gas comprising removing sulfur from a hydrocarbon material such as butane, propane or naphtha by hydrodesulfurization, generating a crude feedstock gas by steam reforming, refining the gas through removing carbon dioxide and water, and regulating the calorific value with a hydrocarbon gas. CONSTITUTION:In the pretreatment of hydrodesulfrization for the hydrocarbon feedstock material, the activation of sulfur in the feedstock material and the removal of the sulfur therefrom are effected on an integrated desulfurization column 6 of the heat-exchange type, so that the sulfur is removed from the feedstock material. Then, the methanation of the desulfurized feedstock material and the hydrogenation of methanol to obtain hydrogen for the hydrodesulfurization are effected in an integrated reactor 8 of the heat-exchange type where each reaction is carried out in one stage to obtain a crude feedstock gas for SNG (methane-rich gas). External heating by means of a heating medium is adopted to regulate the reaction conditions quickly. | ||||||
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