Methods and systems for processing cellulosic biomass
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C10G-003/00
C10G-001/00
C10G-001/08
C08H-008/00
C10G-001/06
C08H-007/00
C08L-097/00
D21C-003/20
D21C-003/22
D21C-011/00
출원번호
US-0868542
(2015-09-29)
등록번호
US-9790436
(2017-10-17)
발명자
/ 주소
Powell, Joseph Broun
Chheda, Juben Nemchand
Joffrion, Lamar Lane
Anderson, Philip Walter
출원인 / 주소
SHELL OIL COMPANY
인용정보
피인용 횟수 :
0인용 특허 :
4
초록▼
Digestion of cellulosic biomass solids may be complicated by release of lignin therefrom. Methods and systems for processing a reaction product containing lignin-derived products, such as phenolics, can comprise hydrotreating the reaction product to convert the lignin-derived products to desired hig
Digestion of cellulosic biomass solids may be complicated by release of lignin therefrom. Methods and systems for processing a reaction product containing lignin-derived products, such as phenolics, can comprise hydrotreating the reaction product to convert the lignin-derived products to desired higher molecular weight compounds. The methods can further include separating the higher molecular weight compounds from unconverted products, such as unconverted phenolics, and recycling the unconverted phenolics for use as at least a portion of the digestion solvent and for further conversion to desired higher molecular weight compounds with additional hydrotreatment. The methods and systems can further include generating hydrogen with the further hydrotreatment.
대표청구항▼
1. A method comprising: providing a reactor in a first reaction zone with a first reaction content comprising cellulosic biomass solids, molecular hydrogen, a catalyst capable of activating molecular hydrogen, and a digestion solvent;heating the first reaction content in the reactor in the first rea
1. A method comprising: providing a reactor in a first reaction zone with a first reaction content comprising cellulosic biomass solids, molecular hydrogen, a catalyst capable of activating molecular hydrogen, and a digestion solvent;heating the first reaction content in the reactor in the first reaction zone to form a first reaction product comprising phenolics and an alcoholic component;providing a reactor in a second reaction zone with a second reaction content comprising the first reaction product, molecular hydrogen, and a catalyst capable of activating molecular hydrogen;heating the second reaction content in the reactor in the second reaction zone to form a second reaction product comprising hydrocarbons converted from phenolics and unconverted phenolics,wherein the reactor in the second reaction zone has a pressure of less than 200 bar;separating an unconverted phenolics fraction from the second reaction product;providing a first portion of the unconverted phenolics fraction to the reactor in the first reaction zone; andproviding a second portion of the unconverted phenolics fraction to the reactor in the second reaction zone. 2. The method of claim 1, wherein the second reaction content has a concentration of phenolics of 50% or less by weight based on the total weight of the second reaction content. 3. The method of claim 1, wherein the second reaction content has a water concentration of at least 10% by weight based on the total weight of the second reaction content. 4. The method of claim 1, wherein the unconverted phenolics fraction comprises greater than 50% of the amount of phenolics in the second reaction product from which the unconverted phenolics fraction is separated. 5. The method of claim 1, wherein the alcoholic component comprises triols and glycol and wherein at least a portion of triols and glycol in the alcoholic component is converted to monohydric alcohols. 6. The method of claim 1, wherein the first reaction content is heated to a temperature in a range of about 190 to 260 degrees C. 7. The method of claim 1, wherein the second reaction content is heated to a temperature in a range of about 210 to 300 degrees C. 8. The method of claim 1, wherein the reactor in the first reaction zone has a total pressure of at least 30 bar. 9. The method of claim 1, wherein the reactor in the second reaction zone has a total pressure of at least 30 bar. 10. The method of claim 1, wherein the reactor in the second reaction zone has a total pressure that is lower than a total pressure of the reactor in the first reaction zone. 11. The method of claim 1, wherein the hydrocarbons converted from phenolics comprise at least one of an alkane, an alkene, a cycloalkane, a cycloalkene, an alkyl derivative or substituent of the cycloalkane, and an alkenealkyl derivative or substituent of the cycloalkene. 12. The method of claim 1, wherein the catalyst in the first reaction content comprises fluidly mobile catalyst particulates. 13. The method of claim 12, wherein the catalyst in the reactor in the second reaction content comprises fluidly mobile catalyst particulates. 14. The method of claim 13, wherein the fluidly mobile catalyst particulates in the second reaction content comprise fluidly mobile catalyst particulates from the first reaction content. 15. The method of claim 1, wherein at least one of the first reaction zone and the second reaction zone comprises a slurry reactor. 16. The method of claim 1, wherein at least one of the first reaction zone and the second reaction zone comprises an ebullating bed reactor. 17. The method of claim 1, wherein the first reaction zone comprises an ebulatting bed reactor and the second reaction zone comprises at least one of a fixed bed reactor and a trickle bed reactor. 18. The method of claim 1, further comprising: providing to the reactor in the second reaction zone a catalyst different from the catalyst in the reactor in the first reaction zone. 19. The method of claim 1, further comprising increasing the catalytic activity in the reactor in the second reaction zone to increase hydrogen generation. 20. The method of claim 1, wherein the first reaction zone comprises a slurry reactor and the second reaction zone comprises at least one of a fixed bed reactor and a trickle bed reactor.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (4)
Powell, Joseph Broun, Biomass conversion systems having a fluid circulation loop containing a centripetal force-based separation mechanism for control of cellulosic fines and methods for use thereof.
Chu Wen-Ting,TWX ; Kuo Di-Son,TWX ; Sung Hung-Cheng,TWX ; Yeh Jack,TWX ; Hsieh Chia-Ta,TWX ; Lin Yai-Fen,TWX, Process of forming an EEPROM device having a split gate.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.