| 摘要 |
1,202,066. Making combustible gas. TEXACO DEVELOPMENT CORP. 31 Aug., 1967 [5 Sept., 1966], No. 39918/67. Heading C5E. A gas comprising H 2 and CO is made by a partial combustion process in which sensible heat is recovered by making steam, which may be used in the process. A hydrocarbon fuel, e.g. methane, natural gas, LPG, gasoline or preferably heavy fuel oil, is reacted with O 2 at a temperature in the range 1200‹ to 1500‹ C. in a zone 2 in a pressure vessel 1 which encloses a twostep cooling zone 3, 4 through which the make gas is passed to an exit 5. The zone 3, 4 is enclosed by a gas-tight wall consisting of thinwalled finned tubes 6 welded together to define an empty annular space 7 between the vessel 1 and the wall 6, and thin-walled tubes 13 are mounted in the zone 4. Venting 8 provides for pressure equalization between the zones 3, 4 and the space 7. Cooling water is circulated through the tubes 6, 13 from a steam-water separating drum 11 by way of the headers and pipes illustrated. The process is suitable for gas pressures above 40 atmos. and steam pressures above 64 atmos. |
