99/03112 Gas purifying device for fossil fuel gasification—power generation systems

• Publisher: Elsevier Science
• Year: 1999
• Weight: 216 KB
• Volume: 40
• Category: Article
• ISSN: 0140-6701
• DOI: 10.1016/s0140-6701(99)91067-6

✦ Synopsis

The paper discloses a novel injection reactor apparatus and an efficient process for partial oxidation of light hydrocarbon gases to convert such gases to useful synthesis gas for recovery and/or subsequent hydrocarbon synthesis. Sources comprising a light hydrocarbon gas and Oz or an oxygencontaining gas, preheated and pressurized, are injected through an injector means at high velocity into an admixture with each other in the desired relative proportions.

Contacted with mixing nozzles which are open to the partial oxidation zone of a reactor and are uniformly-spaced over the face of the injector means, the sources form a reactant gaseous premix having a pressure 23% lower than the lowest upstream pressure of either of the streams of the individual gases. The gaseous premix is injected in a time period which is less than its auto-ignition time, preferably <9 ms, at a velocity of 25-1000 ft/s, into the partial oxidation zone of the reactor. The gas mixture reacts before or simultaneously with the auto-ignition time delay of the mixture, to reduce the amounts of COz, Hz0 and heat produced by the partial oxidation reaction to form a useful syngas which is cooled and recovered.