公开(公告)号：WO2009059228A3

公开(公告)日：2009-05-07

申请号：PCT/US2008/082119

申请日：2008-10-31

Applicant: UNIVERSITY OF MAINE SYSTEM BOARD OF TRUSTEES ,  VAN HEININGEN, Adriaan ,  SIXTA, Herbert ,  UM, Byung-Hwan ,  VAN WALSUM, Peter

Inventor： VAN HEININGEN, Adriaan ,  SIXTA, Herbert ,  UM, Byung-Hwan ,  VAN WALSUM, Peter

IPC: C07C51/50

Abstract: In a process for recovering acetic acid from a wood extract, an aqueous wood extract is provided that contains acetic acid and dissolved hemicellulose containing uronic acid. A water insoluble solvent containing an extractant for the acetic acid is also provided. In a preferred embodiment, the solvent is undecane and the extractant is trioctylphosphine oxide. The wood extract is contacted with the solvent and extractant in order to extract the acetic acid from the wood extract. The acetic acid is then recovered from the solvent and extractant.

公开(公告)号：WO2011139830A2

公开(公告)日：2011-11-10

申请号：PCT/US2011/034317

申请日：2011-04-28

Applicant: UNIVERSITY OF MAINE SYSTEM BOARD OF TRUSTEES ,  VAN WALSUM, G., Peter ,  VAN HEININGEN, Adriaan ,  GENCO, Joseph

Inventor： VAN WALSUM, G., Peter ,  VAN HEININGEN, Adriaan ,  GENCO, Joseph

IPC: B01D11/04 ,  B01J14/00

CPC classification number: C07C51/48 ,  B01D11/0242 ,  B01D11/0288

Abstract: A method of treating a solvent in a wood processing operation is described. A first organic compound is extracted from an aqueous solution with a solvent. Then, the solvent is contacted with an alkali solution to remove a second organic compound from the solvent. For example, the first organic compound may be acetic acid and the second organic compound may be lignin. In another embodiment, a liquid-liquid extraction solvent used to extract acetic acid from an aqueous solution is rejuvenated by contacting the solvent with an alkali solution to remove a second organic compound from the solvent. The rejuvenated solvent is then recycled for further liquid-liquid extraction.

Abstract translation: 描述在木材加工操作中处理溶剂的方法。 用溶剂从水溶液中提取第一有机化合物。 然后，使溶剂与碱溶液接触以从溶剂中除去第二有机化合物。 例如，第一有机化合物可以是乙酸，第二有机化合物可以是木质素。 在另一个实施方案中，用于从水溶液中提取乙酸的液 - 液萃取溶剂通过使溶剂与碱溶液接触以从溶剂中除去第二有机化合物来再生。 然后将再生的溶剂再循环用于进一步的液 - 液萃取。

公开(公告)号：WO2011053576A1

公开(公告)日：2011-05-05

申请号：PCT/US2010/054060

申请日：2010-10-26

Applicant: UNIVERSITY OF MAINE SYSTEM BOARD OF TRUSTEES ,  VAN WALSUM, G., Peter ,  WALTON, Sara ,  VAN HEININGEN, Adriaan

Inventor： VAN WALSUM, G., Peter ,  WALTON, Sara ,  VAN HEININGEN, Adriaan

IPC: C12P7/56 ,  C12P1/00 ,  C12N1/20 ,  C12P7/10

CPC classification number: C12P7/56 ,  C12N1/22 ,  Y02E50/16

Abstract: A method is provided for producing lactic acid comprising fermenting sugars derived from biomass using sugar consuming bacteria to produce lactic acid. In certain embodiments, the biomass is woody biomass, and the bacteria are pentose consuming bacteria such as Bacillus coagulans.

Abstract translation: 提供了一种用于生产乳酸的方法，其包括使用糖消耗细菌从生物质中衍生的糖发酵以产生乳酸。 在某些实施方案中，生物质是木质生物质，并且细菌是戊糖消耗细菌如凝结芽孢杆菌。

公开(公告)号：WO2016172616A1

公开(公告)日：2016-10-27

申请号：PCT/US2016/029027

申请日：2016-04-22

Applicant: UNIVERSITY OF MAINE SYSTEM BOARD OF TRUSTEES

Inventor： BILODEAU, Michael ,  SPENDER, Jonathan ,  VAN HEININGEN, Adriaan

IPC: D21C3/20 ,  D21C9/18 ,  D21D1/20 ,  D21H11/18

CPC classification number: D21C3/20 ,  D21C9/18 ,  D21H11/18

Abstract: The present invention provides, among other things, methods including the steps of providing a cellulosic biomass, associating the cellulosic biomass with an organic liquid to form a mixture, treating the mixture to reduce the moisture content of the mixture to 30% or below (if necessary), and processing the mixture to produce cellulose nanofibrils in a slurry. In some embodiments, provided methods allow for the production of high solids content slurries containing 4% or more cellulosic nanofibrils.

Abstract translation: 本发明尤其提供了包括以下步骤的方法，所述方法包括提供纤维素生物质，将纤维素生物质与有机液体缔合以形成混合物，处理混合物以将混合物的水分含量降低至30％或更低（如果 必要），并且处理该混合物以在浆料中制备纤维素纳米原纤维。 在一些实施方案中，所提供的方法允许生产含有4％或更多纤维素纳米原纤维的高固含量浆料。

公开(公告)号：WO2014124321A1

公开(公告)日：2014-08-14

申请号：PCT/US2014/015401

申请日：2014-02-07

Applicant: UNIVERSITY OF MAINE SYSTEM BOARD OF TRUSTEES

Inventor： VAN HEININGEN, Adriaan ,  TUNC, Mehmet Sefik

IPC: C08H7/00

CPC classification number: D21C1/04 ,  C08H6/00 ,  C08H8/00

Abstract: The present invention provides, among other things, methods including providing a biomass comprising lignin, associating the biomass with between 1-50g/L formic acid at a temperature between 80°C and 230°C for at least 30 seconds to form an extraction liquor and an extraction solid, and separating at least a fraction of the extraction liquor from the extraction solid, wherein an amount of lignin equal to or less than 1.6% of the lignin present in the biomass precipitates in the extraction liquor after cooling to below 100°C.

Abstract translation: 本发明尤其提供了包括提供包含木质素的生物质的方法，所述生物质在80℃和230℃之间的温度下将生物质与1-50g / L甲酸结合至少30秒以形成提取液 和提取固体，并且从提取固体中分离至少一部分提取液，其中等于或少于存在于生物质中的木质素的1.6％的木质素在冷却至低于100°时在萃取液中沉淀出来 C。

公开(公告)号：WO2011053584A1

公开(公告)日：2011-05-05

申请号：PCT/US2010/054088

申请日：2010-10-26

Applicant: UNIVERSITY OF MAINE SYSTEM BOARD OF TRUSTEES ,  WHEELER, M., Clayton ,  SWARTZ, Thomas, J. ,  VAN HEININGEN, Adriaan ,  VAN WALSUM, G., Peter

Inventor： WHEELER, M., Clayton ,  SWARTZ, Thomas, J. ,  VAN HEININGEN, Adriaan ,  VAN WALSUM, G., Peter

IPC: C07D307/00

CPC classification number: C07C45/54 ,  C07C29/143 ,  C07C51/412 ,  C07C31/22 ,  C07C49/12 ,  C07C59/347

Abstract: A process for upgrading an organic acid includes neutralizing the organic acid to form a salt and thermally decomposing the resulting salt to form an energy densified product. In certain embodiments, the organic acid is levulinic acid. The process may further include upgrading the energy densified product by conversion to alcohol and subsequent dehydration.

Abstract translation: 升级有机酸的方法包括中和有机酸以形成盐并热分解所得的盐以形成能量致密化产物。 在某些实施方案中，有机酸是乙酰丙酸。 该方法还可以包括通过转化成醇和随后的脱水来升级能量致密化产物。