Search International and National Patent Collections

1. (WO1998049091) DISTRIBUTED INJECTION PROCESS AND APPARATUS FOR PRODUCING SYNTHESIS GAS

Pub. No.:    WO/1998/049091    International Application No.:    PCT/US1998/008073
Publication Date: Fri Nov 06 00:59:59 CET 1998 International Filing Date: Tue Apr 21 01:59:59 CEST 1998
IPC: B01F 3/02
B01F 5/06
B01J 4/00
B01J 8/02
B01J 10/00
B01J 19/24
C01B 3/36
C01B 3/38
C10G 2/00
F23D 14/22
F23D 14/62
Applicants: EXXON RESEARCH AND ENGINEERING COMPANY
Inventors: HERSHKOWITZ, Frank
DECKMAN, Harry, W.
REYNOLDS, Robert, P.
GONATAS, Constantine
FULTON, John, W.
SHOENMAN, Leonard
ITO, Jackson
Title: DISTRIBUTED INJECTION PROCESS AND APPARATUS FOR PRODUCING SYNTHESIS GAS
Abstract:
A novel injector/reactor apparatus and an efficient process for the partial oxidation of light hydrocarbon gases, such as methane, to convert such gases to useful synthesis gas for recovery and/or subsequent hydrocarbon synthesis. Sources comprising a light hydrocarbon gas, such as methane (23), and oxygen or an oxygen-containing gas (22), preheated and pressurized, are injected through an injector means at high velocity into admixture with each other in the desired relative proportions, at a plurality of mixing nozzles which are open to the partial oxidation zone of a reactor and are uniformly-spaced over the face of the injector means, to form a reactant gaseous premix having a pressure at least 3% 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 autoignition time, preferably less than 9 milliseconds, at a velocity between about 25 to 1000 feet/second, into the partial oxidation zone of the reactor. The gas mixture reacts before or simultaneously with the autoignition time delay of the mixture, to reduce the amounts of CO2, H2O and heat produced by the partial oxidation reaction to form a useful syngas which is cooled and recovered.