| 摘要 |
826,209. Gas washing processes. BATAAFSCHE PETROLEUM MAATSCHAPPIJ N.V., DE. Aug. 8, 1957 [Aug. 10, 1956], No. 25042/57. Class 55 (2). Gases containing a minor proportion of soot, such as those produced by the partial combustion of hydrocarbon material introduced through line 6 into the combustion chamber 1 of a generator 2 in the presence of oxygen-containing gas, with or without the addition of steam, introduced through line 7, are passed at a pressure of at least 3 atmospheres into a first scrubbing zone 9 where they are sprayed with finely dispersed water through nozzles 10 to saturate the gases and cool them to a temperature between the temperature at which they first become saturated and that temperature minus 40‹ C. After separation of the soot-in-water suspension from the gases in separator 4, the gases are passed through a second scrubbing zone 5 where, in countercurrent to a spray of water from line 13, they are cooled to the desired temperature. The gases leaving the generator 2, which may be at a pressure of 10 to 30 atmospheres and may have a temperature of 1000‹ C. or more are cooled in a heat exchanger or steam boiler 3 to a temperature of 150‹ to 500‹ C. before entering the first scrubbing zone and are usually within the temperature range 75-250‹ C. after leaving the zone 9. In a modification the steam boiler 3 is omitted. Specification 780,120 is referred to.
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