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US 2011/0218374 A1Published application
Processes and systems for the staged synthesis of alkyl bromides
AssigneeMarathon Gtf Technology, Ltd.
InventorJohn J. Waycuilis
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Abstract
Processes and systems for synthesizing hydrocarbon products, such as high molecular weight hydrocarbons, olefins or mixtures thereof, from alkyl bromides wherein one or more streams of alkyl bromides may be reacted in sequential or concurrent stages at different temperatures. The catalyst used in the synthesis stages may be the same or different and at least in one instance is chosen to form hydrocarbon products having a significant C6+ paraffin content. The stages may be conducted in one or more reactors and the catalyst may be deployed in fixed beds or fluidized beds.
Claims20
A process comprising:
- providing a first feed gas stream containing lower molecular weight alkanes and having less than about 4.0 mol % C2+ components;
- reacting bromine with the first feed gas stream to form first alkyl bromides containing poly-brominated alkanes;
- providing a second feed gas stream containing lower molecular weight alkanes and having predominately C2+ components;
- reacting bromine with the second feed gas stream to form second alkyl bromides;
- and
- reacting the first alkyl bromides and the second alkyl bromides in the presence of a first catalyst and at a first temperature sufficient to form at least a first hydrocarbon product containing high molecular weight hydrocarbons, wherein a portion of said poly-brominated alkanes are converted in the presence of the first catalyst and the second alkyl bromides to form at least a portion of the first product.
3 more elements
A process comprising:
- providing a first feed gas stream containing lower molecular weight alkanes and having less than about 4.0 mol % C2+ components;
- reacting bromine with the first feed gas stream to form first alkyl bromides containing poly-brominated alkanes;
- providing a second feed gas stream containing lower molecular weight alkanes and having predominately C2+ components;
- reacting bromine with a first portion of the second feed gas stream to form second alkyl bromides;
- and
- reacting the first alkyl bromides and a second portion of the second feed gas stream in the presence of a first catalyst and at a first temperature sufficient to form an effluent containing a first hydrocarbon product containing high molecular weight hydrocarbons, wherein a portion of the poly-brominated alkanes are converted in the presence of the first catalyst and the C2+ components to form at least a portion of the first hydrocarbon product.
3 more elements
Dependencies are inferred from the claim text.