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US 2013/0156681 A1Published application
Processes and Systems for Oxidizing Aqueous Metal Bromide Salts
AssigneeMarathon Gtf Technology, Ltd.
InventorsSabah A. Kurukchi, Anand Moodley, Yijun Liu
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Abstract
Processes and systems that include use of a packed wet oxidation reactor for oxidizing aqueous metal bromide salts in a bromine-based process for converting lower molecular weight alkanes to higher molecular weight hydrocarbons. A stream comprising a dissolved metal bromide salt may be oxidized in a wet oxidation reactor comprising a packed section to produce at least a partially oxidized liquid stream comprising oxidized products of the metal bromide salt and a gaseous bromine stream comprising elemental bromine.
Claims20
A process comprising:
- oxidizing a stream comprising a dissolved metal bromide salt in a wet oxidation reactor comprising a packed section to produce at least a partially oxidized liquid stream comprising oxidized products of the metal bromide salt and a gaseous bromine stream comprising elemental bromine.
A process comprising:
- reacting lower molecular weight alkanes and bromine to produce at least alkyl bromides and hydrogen bromide, wherein the lower molecular weight alkanes comprise methane;
- reacting the alkyl bromides over a catalyst to produce at least higher molecular weight hydrocarbons and additional hydrogen bromide, wherein the higher molecular weight hydrocarbons comprise hydrocarbons having four or more carbon atoms;
- neutralizing the hydrogen bromide and the additional hydrogen bromide in an aqueous stream of ferric hydroxide and ferrous bromide to produce at least a ferrous/ferric stream comprising a dissolved ferrous bromide and dissolved ferric bromide in a concentration of about 40 weight percent to about 60 weight percent;
- and
- oxidizing the ferric/ferrous stream in a wet oxidation reactor comprising a packed section to produce at least a partially oxidized liquid stream comprising ferric bromide, wherein the wet oxidation reactor operates at a temperature of about 140° C. to about 190° C. and a pressure of about 3 bars to about 20 bars.
2 more elements
A system comprising:
- a wet oxidation reactor having an inlet in an upper end thereof for an aqueous metal bromide salt, an outlet in the lower end thereof for an oxidant stream, and one or more packed sections, wherein the wet oxidation reactor is configured to countercurrently contact the aqueous metal bromide salt with the oxidant stream over the one or more packed sections so as to oxidize the aqueous metal bromide salt and produce at least a partially oxidized liquid stream comprising oxidized products of the aqueous metal bromide salt and a gaseous bromine stream comprising elemental bromine.
Dependencies are inferred from the claim text.