公开(公告)号：US20150329887A1

公开(公告)日：2015-11-19

申请号：US14368719

申请日：2012-12-20

Applicant: MYRIANT CORPORATION

Inventor： Bin Wang ,  Zachary Wilson ,  Ramnik Singh

IPC: C12P19/14 ,  C12P19/02

CPC classification number: C12P19/14 ,  C08H8/00 ,  C10L1/02 ,  C12P19/02 ,  C12P2201/00 ,  C12P2203/00 ,  Y02E50/16 ,  Y02E50/343 ,  Y02P30/20

Abstract: This invention relates to the operation of a biorefinery for manufacturing either biofuels or renewable chemical feedstock using lignocellulosic biomass as a source of carbon. The present invention provides a cost-effective process for pretreating lignocellulosic biomass in the recovery of fermentable sugars. More specifically, the present invention describes an integrated approach for efficiently recovering and using six-carbon and five-carbon sugars along with value-added oligosaccharides such as xylooligosaccahrides from lignocellulosic biomass so that the cost of manufacturing biofuels and renewable chemical feedstock is substantially lowered.

Abstract translation: 本发明涉及使用木质纤维素生物质作为碳源生产生物燃料或再生化学原料的生物精炼厂的操作。 本发明提供了在回收可发酵糖中预处理木质纤维素生物质的成本有效的方法。 更具体地，本发明描述了一种用于有效地回收和使用六碳和五碳糖以及来自木质纤维素生物质的增值低聚糖例如木寡糖的综合方法，使得生物燃料和可再生化学原料的制造成本显着降低。

公开(公告)号：US20160304912A1

公开(公告)日：2016-10-20

申请号：US15101015

申请日：2014-12-05

Applicant: MYRIANT CORPORATION

Inventor： Thidarat Tosukhowong ,  Bin Wang ,  Manav Mistry ,  Rajesh Dasari ,  Zachary Wilson

IPC: C12P7/62 ,  C07C67/58 ,  C12P7/46 ,  C07C51/02 ,  C07C51/09 ,  C07C67/08 ,  C07C51/43

CPC classification number: C12P7/62 ,  C07C51/02 ,  C07C51/09 ,  C07C51/43 ,  C07C67/08 ,  C07C67/58 ,  C12P7/46 ,  C07C69/40 ,  C07C55/10

Abstract: This invention relates to a process for preparing succinate ester from a succinic acid salt present in a fermentation broth. In the first stage of this invention, renewable carbon resources are utilized to produce succinic acid in the form of a succinic acid salt through biological fermentation. The succinic acid salt present in the fermentation broth is subjected to double displacement reaction with a strong acid leading to the release of succinic acid. Succinic acid is recovered by fractional crystallization integrated with an alcohol washing step and subjected to esterification reaction to produce succinate ester which is purified by fractional distillation. The succinate ester thus obtained is converted into 1,4-butanediol, gamma-butyrolactone and tetrahydrofuran through hydrogenation reactions. The succinate ester can also be hydrolyzed to yield highly pure succinic acid.

Abstract translation: 本发明涉及由存在于发酵液中的琥珀酸盐制备琥珀酸酯的方法。 在本发明的第一阶段，利用可再生碳资源通过生物发酵生产琥珀酸盐形式的琥珀酸。 存在于发酵液中的琥珀酸盐与强酸进行双位置反应，导致琥珀酸的释放。 通过与醇洗涤步骤一体化的分级结晶回收琥珀酸，并进行酯化反应以制备通过分馏纯化的琥珀酸酯。 由此获得的琥珀酸酯通过氢化反应转化成1,4-丁二醇，γ-丁内酯和四氢呋喃。 琥珀酸酯也可以水解，得到高纯度的琥珀酸。