Oxygen assisted organosolv process, system and method for delignification of lignocellulosic materials and lignin recovery
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C07G-001/00
C08L-097/00
D21C-003/00
C08H-008/00
D21C-001/00
C08H-007/00
출원번호
US-0449812
(2014-08-01)
등록번호
US-9382283
(2016-07-05)
발명자
/ 주소
Manesh, Ali
Guenther, John H.
Zoborowski, Edwin G.
Braenner, Walter
Manesh, Mohammad Ali
Hawk, Lee J.
출원인 / 주소
American Science and Technology Corporation
대리인 / 주소
Beem Patent Law Firm
인용정보
피인용 횟수 :
0인용 특허 :
38
초록▼
An oxygen assisted Organosolv process for a more efficient delignification and producing bio-products by decomposing lignocellulosic materials comprises providing a lignin solvent with water, an acid, an oxidant and one or more lignin dissolving chemicals. The process also includes placing biomass i
An oxygen assisted Organosolv process for a more efficient delignification and producing bio-products by decomposing lignocellulosic materials comprises providing a lignin solvent with water, an acid, an oxidant and one or more lignin dissolving chemicals. The process also includes placing biomass in contact with oxidant, acid, water, the lignin solvent in any order or combined to form a recyclable solvent, and recycling at least a portion of the recyclable solvent by circulating the recyclable solvent back into contact with the biomass. The circulating of the recyclable solvent occurs for a period of time, during which, acid and oxidant may be added if necessary as they may be consumed by the process, after which, the process then includes separating material such as chemicals and lignin from the recyclable solvent. The chemicals can be recycled as new lignin dissolving solvent or sold, while lignin can be used as natural and renewable colorant for polymers such as poly lactic acid, or mixed with other polymers as an additive and extruded or injected to consumable polymeric parts, or can be used and the natural source of renewable aromatics. Application of an oxidant will help the overall fractionation process by changing the chemical characteristics of the lignin and therefore allows more lignin to be removed from biomass. At the end, the lignin is separated from the lignin dissolving solvent by a separation process to also reclaim the lignin dissolving solvent for the next fractionation process.
대표청구항▼
1. An oxidizing-agent assisted organosolv based fractionation process for delignification of lignocellulosic biomass materials comprising: a) reacting organic solvent, oxidant, acid, water, and lignocellulosic biomass with heat to form an insoluble phase and a soluble phase, the insoluble phase comp
1. An oxidizing-agent assisted organosolv based fractionation process for delignification of lignocellulosic biomass materials comprising: a) reacting organic solvent, oxidant, acid, water, and lignocellulosic biomass with heat to form an insoluble phase and a soluble phase, the insoluble phase comprising delignified biomass and the soluble phase comprising a lignin enriched solution;b) separating the soluble phase from the insoluble phase;c) separating the soluble phase into an organic phase and an aqueous phase;d) recovering a recyclable solvent mixture from the organic phase such that the remaining products comprises lignin; ande) reacting the recyclable solvent mixture and additional oxidant, additional acid, additional water, and additional lignocellulosic biomass with heat to form an insoluble phase and soluble phase. 2. The process of claim 1 wherein the organic solvent comprises butanol. 3. The process of claim 1 wherein the oxidant comprises hydrogen peroxide. 4. The process of claim 1 wherein the acid comprises sulfuric acid. 5. The process of claim 1 wherein the ratio of water to organic solvent is about 1:1 by weight. 6. The process of claim 1 wherein recovering the recyclable solvent mixture comprises applying heat to the organic phase to evaporate the recyclable solvent mixture, condensing the evaporated recyclable solvent mixture back into a liquid and collecting the condensed liquid. 7. The process of claim 1 wherein between about 5 grams and about 15 grams of organic solvent is provided per 1 gram of biomass. 8. The process of claim 1 wherein the additional water comprises the aqueous phase. 9. The process of claim 1 wherein up to about 0.6 grams of oxidant is provided per 1 gram of the lignocellulosic biomass. 10. An oxidizing-agent assisted organosolv based fractionation process for delignification of lignocellulosic biomass materials comprising: a) reacting organic solvent, gaseous O2, acid, water, and lignocellulosic biomass with heat to form an insoluble phase and a soluble phase, the insoluble phase comprising delignified biomass and the soluble phase comprising a lignin enriched solution;b) separating the soluble phase from the insoluble phase;c) separating the soluble phase into an organic phase and an aqueous phase;d) recovering a recyclable solvent mixture from the organic phase such that the remaining products comprises lignin; ande) reacting the recyclable solvent mixture and additional gaseous O2, additional acid, additional water, and additional lignocellulosic biomass with heat to form an insoluble phase and soluble phase. 11. The process of claim 10 wherein the organic solvent comprises butanol. 12. The process of claim 10 wherein the acid comprises sulfuric acid. 13. The process of claim 10 wherein the ratio of water to organic solvent is about 1:1 by weight. 14. The process of claim 10 wherein recovering the recyclable solvent mixture comprises applying heat to the organic phase to evaporate the recyclable solvent mixture, condensing the evaporated recyclable solvent mixture back into a liquid and collecting the condensed liquid. 15. The process of claim 10 wherein between about 5 grams and about 15 grams of organic solvent is provided per 1 gram of biomass. 16. The process of claim 10 wherein the additional water comprises the aqueous phase. 17. The process of claim 10 wherein up to about 0.6 grams of oxidant is provided per 1 gram of the lignocellulosic biomass. 18. An oxidizing-agent assisted organosolv based fractionation process for delignification of lignocellulosic biomass materials comprising: a) reacting organic solvent, oxidant, acid, water, and lignocellulosic biomass with heat to form an insoluble phase and a soluble phase, the insoluble phase comprising delignified biomass and the soluble phase comprising a lignin enriched solution;b) separating the soluble phase from the insoluble phase;c) separating the soluble phase into an organic phase and an aqueous phase; andd) reacting the organic phase and additional oxidant, additional acid, additional water, and additional lignocellulosic biomass with heat to form an insoluble phase and soluble phase. 19. The process of claim 18 wherein the oxidant is hydrogen peroxide. 20. The process of claim 18 wherein the organic solvent comprises butanol. 21. The process of claim 18 wherein the acid comprises sulfuric acid. 22. The process of claim 18 wherein the ratio of water to organic solvent is about 1:1 by weight. 23. The process of claim 18 wherein between about 5 grams and about 15 grams of organic solvent is provided per 1 gram of biomass. 24. The process of claim 18 wherein the organic phase comprises between about 5% and about 25% lignin by weight. 25. The process of claim 18 wherein the additional water comprises the aqueous phase. 26. The process of claim 18 wherein up to about 0.6 grams of oxidant is provided per 1 gram of the lignocellulosic biomass. 27. An oxidizing-agent assisted organosolv based fractionation process for delignification of lignocellulosic biomass materials comprising: a) reacting organic solvent, gaseous O2, acid, water, and lignocellulosic biomass with heat to form an insoluble phase and a soluble phase, the insoluble phase comprising delignified biomass and the soluble phase comprising a lignin enriched solution;b) separating the soluble phase from the insoluble phase;c) separating the soluble phase into an organic phase and an aqueous phase; andd) reacting the organic phase and additional gaseous O2, additional acid, additional water, and additional lignocellulosic biomass with heat to form an insoluble phase and soluble phase. 28. The process of claim 27 wherein the organic solvent comprises butanol. 29. The process of claim 27 wherein the acid comprises sulfuric acid. 30. The process of claim 27 wherein the ratio of water to organic solvent is about 1:1 by weight. 31. The process of claim 27 wherein between about 5 grams and about 15 grams of organic solvent is provided per 1 gram of biomass. 32. The process of claim 27 wherein the organic phase comprises between about 5% and about 25% lignin by weight. 33. The process of claim 27 wherein the additional water comprises the aqueous phase. 34. The process of claim 27 wherein up to about 0.6 grams of oxidant is provided per 1 gram of the lignocellulosic biomass.
Paren Aarto,FIX ; Jakara Jukka,FIX ; Patola Juha,FIX, Delignification of chemical pulp with peroxide in the presence of a silicomolybdenic acid compound.
Dimmel Donald R. (Appleton WI) Wozniak John C. (Kimberly WI), Lignin derived quinonic compound mixtures useful for the delignification of cellulosic materials.
Tournier Herve (Valleiry FRX) Johansson Allan A. (Meyrin CHX) Sachetto Jean-Pierre (Saint Julien En Genevois FRX) Armanet Jean-Michel (Onex CHX) Michel Jean-Pierre (Collonges Sous Salve FRX) Roman Al, Method for the simultaneous delignification of wood and other ligno-cellulosic materials and hydrolysis of the hemicellu.
Agar Richard C. ; Lora Jairo H. ; Cronlund Malcolm ; Wu Chih Fae ; Goyal Gopal C. ; Winner Stephen R. ; Raskin Mikhail N. ; Katzen Raphael ; LeBlanc Ron,SAX ITX 31311, Method of recovering furfural from organic pulping liquor.
Belanger, Helene; Prestidge, Ross L.; Lough, Tony James; Watson, James D., Methods for isolating and harvesting lignin and isolated lignin preparations produced using the methods.
Jaschinski, Thomas; Gunnars, Susanna; Besemer, Arie Cornelis; Bragd, Petter; Jetten, Jan Matthijs; Van Den Dool, Ronald; Van Hartingsveldt, Willem, Oxidized cellulose-containing fibrous materials and products made therefrom.
Torget Robert W. (Littleton CO) Kadam Kiran L. (Golden CO) Hsu Teh-An (Golden CO) Philippidis George P. (Highlands Ranch CO) Wyman Charles E. (Lakewood CO), Prehydrolysis of lignocellulose.
Torget Robert W. (Littleton CO) Kadam Kiran L. (Golden CO) Hsu Teh-An (Golden CO) Philippidis George P. (Highlands Ranch CO) Wyman Charles E. (Lakewood CO), Prehydrolysis of lignocellulose.
Wenche Elisabeth Hermansson SE; Lennart Andersson SE; Magnus Linsten SE; Jiri Basta SE; Lillemor Holtinger SE, Process for acid bleaching of lignocellulose-containing pulp with a magnesium compound.
Meier Juergen (Ridgewood NJ) Arnold Gerhard (Ringwood NJ) Helmling Oswald (Hasselroth DEX), Process for bleaching and delignification of lignocellulosic materials.
Laamanen Lauri A. (Helsinki FIX) Sundquist Jorma J. (Espoo FIX) Wartiovaara Ilkka Y. P. (Espoo FIX) Kauliomki Seppo V. (Helsinki FIX) Poppius Kristiina J. (Helsinki FIX), Process for bleaching organic peroxyacid cooked material with an alkaline solution of hydrogen peroxide.
Linsten Magnus,SEX ; Basta Jiri,SEX ; Hallstrom Ann-Sofie,SEX, Process for delignification of lignocellulose-containing pulp with an organic peracid or salts thereof.
Roberts Ronnie S. (Atlanta GA) Muzzy John D. (Atlanta GA) Faass George S. (Bensalem PA), Process for extracting lignin from lignocellulosic material using an aqueous organic solvent and an acid neutralizing ag.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.