EP0178853A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Conversion process
Assignee: BP PLC
•
Filing: 1985-10-10
•
Granted: —
•
Expires: 2005-10-10
Abstract
Abstract Process for the production of synthesis gas and hydrocarbons in which a saturated hydrocarbon and an oxygen containing gas having a ratio of hydrocarbon to oxygen of greater than the stoichiometric ratio for complete combustion are introduced together with hydrogen into a bed of particulate material. The upward flow rate of the gases is sufficiently large to fluidise or to cause a spouting action of the bed material. The hydrocarbon, oxygen containing gas and hydrogen are ignited and reacted together and the prdoucts of the reaction are withdrawn.
Inventors
- 👤 John Howard Brophy
- 👤 Richard Paul Manning
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 21:03
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/245; C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/344
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
93 words
A process for the production of synthesis gas and hydrocarbons in which (a) a saturated hydrocarbon and an oxygen containing gas having a ratio of hydrocarbon to oxygen of greater than the stoichiometric ratio for complete combustion are introduced together with hydrogen into a bed of particulate material, (b) the upward flow rate of the gases being sufficiently large to fluidise or to cause a spouting action of the bed material, (c) the hydrocarbon, oxygen containing gas and hydrogen being ignited and reacted together and (d) the products of the reaction being withdrawn.
Claim 2
Dependent Claim
93 words
A process for the production of synthesis gas and hydrocarbons in which (a) a saturated hydrocarbon and an oxygen containing gas having a ratio of hydrocarbon to oxygen of greater than the stoichiometric ratio for complete combustion are introduced together with hydrogen into a bed of particulate material, (b) the upward flow rate of the gases being sufficiently large to fluidise or to cause a spouting action of the bed material, (c) the hydrocarbon, oxygen containing gas and hydrogen being ignited and reacted together and (d) the products of the reaction being withdrawn.
Claim 3
Dependent Claim
37 words
A process according to claim 1 in which the upward flow rate of the hydrogen, hydrocarbon and oxygen containing gas causes fluidisation and surface bubbling of the bed sufficient to throw particulate material up into the freeboard.
Claim 4
Dependent Claim
37 words
A process according to claim 1 in which the upward flow rate of the hydrogen, hydrocarbon and oxygen containing gas stream forms a fountain of particles above the bed surface, the particles falling back into the bed.
Claim 5
Dependent Claim
32 words
A process according to any of claims 1 to 3 in which two or more of the hydrogen, hydrocarbon and oxygen containing gas feeds are pre-mixed prior to introduction to the bed.
Claim 6
Dependent Claim
23 words
A process according to any of claims 1 to 4 in which the saturated hydrocarbon comprises methane, ethane, propane, butane, or natural gas.
Claim 7
Dependent Claim
19 words
A process according to any of the preceding claims in which the oxygen containing gas is oxygen or air.
Claim 8
Dependent Claim
29 words
A process according to claim 1 in which one or more of the hydrogen, hydrocarbon and the oxygen containing gas feeds are pre-heated prior to introduction to the bed.
Claim 9
Dependent Claim
33 words
A process according to any of the preceding claims in which the composition of hydrocarbon gas and oxygen containing gas is 1.1 to 5 times the stoichiometric ratio of hydrocarbon/oxygen for complete combustion.
Claim 10
Dependent Claim
22 words
A process according to any of the preceding claims in which the molar ratio of hydrogen to oxygen is 5 or less.
Claim 11
Dependent Claim
18 words
A process according to any of the preceding claims operated at a pressure of greater than atmospheric pressure.
Claim 12
Dependent Claim
29 words
A process according to any of the preceding claims in which the bed of particulate material comprises firebrick, quartz, alumina, carborundum, zirconia, silicon carbide, ceramic or forms of carbon.
Claim 13
Dependent Claim
15 words
A process according to claim 11 in which the particulate size diameter is 0.01-10 mm.
Claim 14
Dependent Claim
17 words
A process according to any of the preceding claims in which the bed has ancillary heating means.
Claim 15
Dependent Claim
66 words
A process according to any of the preceding claims in which the reaction is initiated by preheating the bed material by igniting and burning a near stoichiometric hydrocarbon/oxygen containing gas mixture in the bed until the bed temperature is sufficient to sustain combustion of a hydrogen, hydrocarbon/oxygen containing gas mixture having a ratio of hydrocarbon to oxygen of greater than the stoichiometric ratio for complete combustion.
Claim 16
Dependent Claim
15 words
A process according to any of the preceding claims in which the reaction is quenched.
Claim 17
Dependent Claim
19 words
A process according to claim 15 in which the reaction is quenched by the introduction of steam or water.
Claim 18
Dependent Claim
25 words
A process according to claim 15 in which the reaction is quenched by the introduction of a liquid saturated hydrocarbon into the hot product gas.
Claim 19
Dependent Claim
23 words
A process according to any of the preceding claims in which a further hydrocarbon gas, hydrogen, or oxygen is introduced to the bed.
Claim 20
Dependent Claim
22 words
A process according to claim 18 in which the further hydrocarbon gas is different in composition or constitution from the hydrocarbon gas.
Claim 21
Dependent Claim
27 words
A process according to claim 18 or claim 19 in which the further hydrocarbon gas is introduced parallel, perpendicular, or countercurrent to the hydrocarbon/oxygen containing gas mixture.
Claim 22
Dependent Claim
19 words
A process according to any of the preceding claims which is carried out in one or more particulate beds.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.