Even carbon number paraffin composition and method of manufacturing same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C07C-001/00
C07C-001/207
C07C-001/22
C07C-009/14
C07C-009/22
C10L-001/04
C07C-009/15
C09K-005/06
출원번호
US-0997285
(2016-01-15)
등록번호
US-9963401
(2018-05-08)
발명자
/ 주소
Abhari, Ramin
Tomlinson, H. Lynn
Gruver, Vladimir
출원인 / 주소
REG SYNTHETIC FUELS, LLC
대리인 / 주소
Foley & Lardner LLP
인용정보
피인용 횟수 :
1인용 특허 :
89
초록▼
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 catalys
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.
대표청구항▼
1. 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 hydroge
1. 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; andwithdrawing 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. 2. The method of claim 1, wherein temperature in the reactor is controlled to be within 315° C. to 343° C. 3. The method of claim 1, wherein the naturally occurring fatty acids and esters comprise vegetable oils, plant oils, algal oils, animal fats, tall oil fatty acid, or a combination of any two or more thereof. 4. The method of claim 1, wherein the naturally occurring fatty acids and esters comprise chicken fat, beef tallow, yellow grease, choice white grease, lard, soybean oil, corn oil, cottonseed oil, canola oil, coconut oil, sunflower oil, palm oil, palm kernel oil, rapeseed oil, or a combination of any two or more thereof. 5. The method of claim 1, wherein the naturally occurring fatty acids and esters comprise chicken fat, beef tallow, yellow grease, choice white grease, lard, soybean oil, corn oil, cottonseed oil, canola oil, sunflower oil, palm oil, rapeseed oil, or a combination of any two or more thereof; andthe even carbon number paraffins comprise n-hexadecane and n-octadecane. 6. The method of claim 1, wherein the naturally occurring fatty acids and esters comprise coconut oil, palm kernel oil, or a combination thereof; andthe even carbon number paraffins comprise n-dodecane and n-tetradecane. 7. The method of claim 1, wherein the even carbon number paraffins comprise n-dodecane, n-tetradecane, n-hexadecane, and n-octadecane. 8. The method of claim 1, wherein the liquid product stream comprises at least 80 wt % even carbon number paraffins selected from the C12-C24 range. 9. The method of claim 1, wherein the catalyst comprises nickel-molybdenum, cobalt-molybdenum, or nickel-tungsten. 10. The method of claim 1, wherein temperature in the reactor is controlled to be within 315° C. to 343° C.;the naturally occurring fatty acids and esters comprise chicken fat, beef tallow, yellow grease, choice white grease, lard, soybean oil, corn oil, cottonseed oil, canola oil, sunflower oil, palm oil, rapeseed oil, or a combination of any two or more thereof; andthe even carbon number paraffins comprise n-hexadecane and n-octadecane. 11. The method of claim 1, wherein temperature in the reactor is controlled to be within 315° C. to 343° C.;the naturally occurring fatty acids and esters comprise coconut oil, palm kernel oil, or a combination thereof; andthe even carbon number paraffins comprise n-dodecane and n-tetradecane. 12. The method of claim 1, comprising further processing the liquid product stream to recover at least a portion of the even carbon numbered paraffins and produce a phase change material. 13. The method of claim 12, wherein the further processing steps comprise distilling the liquid product stream. 14. The method of claim 13, wherein temperature in the reactor is controlled to be within 315° C. to 343° C. 15. The method of claim 1, wherein withdrawing a liquid product stream from the reactor comprises filtering a slurry stream from the reactor to remove and recycle the catalyst and part of the liquid from the slurry stream back to the reactor. 16. 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. 17. The method of claim 16, comprising further processing the liquid hydrocarbon stream to recover at least a portion of the even carbon numbered paraffins from the stream to produce a phase change material.
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