Low carbon dioxide footprint process for coal liquefaction
AssigneeEMC Metals Corporation
InventorWillem P.C. Duyvesteyn
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Abstract
A method for producing hydrocarbons is provided, which comprises (a) subjecting a coal feedstock to mechanical activation (203) in a liquid medium, thereby obtaining a mixture of solubilized asphaltenes; and (b) at least partial cracking (207) the resulting mixture in a supersonic nozzle reactor, thereby obtaining hydrocarbon products derived from the asphaltenes.
Claims44
A method for producing hydrocarbons, comprising:
- subjecting a coal feedstock to mechanical activation in a first liquid medium containing covalently bound oxygen, thereby obtaining a mixture of solubilized asphaltenes;
- and
- cracking the asphaltenes in a nozzle reactor, thereby obtaining hydrocarbon products derived from the asphaltenes.
The feed material cracking method of claim 18, wherein the cracking material injector includes a converging/diverging passage.
A method for cracking coal asphaltenes, comprising:
- mechanically activating a coal feedstock in a liquid medium comprising a material which generates hydrogen in situ under a set of cracking conditions;
- and
- cracking the mechanically activated coal feedstock under said cracking conditions.
A method for cracking coal asphaltenes in a nozzle reactor under a set of reactor conditions, comprising:
- providing a nozzle reactor having first and second reactant inlets;
- injecting an activated coal feedstock into the first inlet;
- and
- injecting a material into the second inlet which generates hydrogen in situ under said reactor conditions.
A system for obtaining hydrocarbon liquids from a coal feedstock, comprising:
- a grinding mill which mechanically activates the coal feedstock by grinding it in a liquid medium;
- and
- a supersonic nozzle reactor which cracks the activated coal feedstock to generate hydrocarbon liquids.
Dependencies are inferred from the claim text.