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US 9,963,401 B2Granted
Even carbon number paraffin composition and method of manufacturing same
AssigneeReg Synthetic Fuels, LLC
InventorsRamin Abhari, H. Lynn Tomlinson, Vladimir Gruver
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Abstract
Paraffin compositions including mainly even carbon number paraffins, and a method for manufacturing the same, is disclosed herein. In one embodiment, the method involves contacting naturally occurring fatty acid/glycerides with hydrogen in a slurry bubble column reactor containing bimetallic catalysts with equivalent particle diameters from about 10 to about 400 micron. The even carbon number compositions are particularly useful as phase change material.
Claims17
A method for preparing a phase change material comprising:
- feeding naturally occurring fatty acids and esters to a reactor containing a liquid phase, a gas phase, and a catalyst comprising nickel, molybdenum, cobalt, tungsten, or a combination of any two or more thereof;
- at least partially hydrogenating/hydrogenolyzing the naturally occurring fatty acids and esters in the reactor;
- controlling an intracatalyst temperature gradient within the reactor to reduce thermal decarboxylation relative to oxygen hydrogenolysis;
- and
- withdrawing a liquid product stream from the reactor;
- wherein the liquid product stream comprises at least 75 wt % even carbon number paraffins selected from the C12-C24 range.
3 more elements
A method for preparing a phase change material comprising:
- feeding naturally occurring fatty acids and esters to a reactor containing a liquid phase, a gas phase, and a catalyst comprising nickel, molybdenum, cobalt, and/or tungsten;
- at least partially hydrogenating/hydrogenolyzing the naturally occurring fatty acids and esters in the reactor;
- withdrawing a gas stream from the reactor and at least partially condensing said gas stream;
- separating said at least partially condensed gas stream into a second gas stream, a liquid water stream, and a liquid hydrocarbon stream;
- wherein said liquid hydrocarbon stream comprises at least 75 wt % even carbon number paraffins selected from the C12-C24 range.
2 more elements
Dependencies are inferred from the claim text.