公开(公告)号：US10035749B2

公开(公告)日：2018-07-31

申请号：US14915554

申请日：2014-09-03

Applicant: MYRIANT CORPORATION

Inventor： Vijay Gnanadesikan ,  Ramnik Singh ,  Rajesh Dasari ,  Montgomery Alger

IPC: C07C51/27 ,  C07C29/60 ,  C07C51/285 ,  C07C209/16 ,  C07C253/26 ,  C07C29/44 ,  C07C51/16

CPC classification number: C07C51/27 ,  C07C29/44 ,  C07C29/60 ,  C07C51/16 ,  C07C51/285 ,  C07C209/16 ,  C07C253/26 ,  C07C33/03 ,  C07C255/08 ,  C07C211/21 ,  C07C57/04

Abstract: The present invention is in the field of producing bio-based commodity organic chemicals such as bio-acrylic acid, bio-acrylonitrile, and bio-1,4-butanediol using renewable carbon sources as feedstock. In the first stage of the present invention, bio-1,3-propanediol is derived from renewable carbon sources through microbial fermentation. In the second stage of the present invention, bio-1,3-propanediol is converted into bio-acrylic acid or bio-acrylonitrile or bio-1,4-butanediol.

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：US20150038735A1

公开(公告)日：2015-02-05

申请号：US14383553

申请日：2013-09-06

Applicant: MYRIANT CORPORATION

Inventor： Cenan A. Ozmeral ,  Joseph P. Glas ,  Rajesh Dasari ,  Setrak Tanielyan ,  Ramesh Deoram Bhagat ,  Mohan Reddy Kasireddy ,  Ramnik Singh ,  Vijay Gnanadesikan ,  Robert L. Augustine ,  Santosh More

IPC: C07C67/327 ,  C07C51/377

CPC classification number: C07C67/327 ,  C07C51/09 ,  C07C51/377 ,  C07C57/04 ,  C07C69/54

Abstract: An L-type zeolite, a modified L-type zeolite, or any combination thereof may be useful in catalytically preparing α,β-unsaturated carboxylic acids and/or esters thereof through reaction pathways that include dehydroxylation reactions and optionally esterification reactions. In some reaction pathways, dehydroxylation reactions and esterification reactions may be performed sequentially or concurrently.

Abstract translation: L型沸石，改性L型沸石或其任何组合可用于通过包括脱羟基反应和任选的酯化反应的反应途径催化制备α，β-不饱和羧酸和/或其酯。 在一些反应途径中，可以顺序地或同时地进行脱羟基化反应和酯化反应。

公开(公告)号：US20180134647A1

公开(公告)日：2018-05-17

申请号：US15580041

申请日：2016-06-10

Applicant: Myriant Corporation

Inventor： Cenan Ozmeral ,  Rajesh Dasari ,  Ramnik Singh ,  Yu Noda ,  Robert M. Rioux ,  Yuriy Roman-Leshkov

IPC: C07C51/377 ,  B01J29/60 ,  B01J29/08 ,  B01J29/18 ,  B01J29/40 ,  B01J27/18 ,  B01J37/30 ,  B01J37/02

CPC classification number: C07C51/377 ,  B01J27/1806 ,  B01J29/082 ,  B01J29/084 ,  B01J29/18 ,  B01J29/40 ,  B01J29/60 ,  B01J29/7007 ,  B01J35/002 ,  B01J37/0201 ,  B01J37/30 ,  B01J2229/123 ,  B01J2229/183 ,  C07C45/54 ,  Y02P20/588 ,  C07C57/04 ,  C07C47/06

Abstract: Described herein are solid acid catalysts and the methods for catalytically preparing α,β-unsaturated carboxylic acids and/or esters thereof. In one aspect, a zeolite catalyst may be used. The catalyst may, in certain embodiments, be modified to improve the selectivity and/or conversion of a reaction. For instance, a catalyst may be modified by ion exchange to achieve a desirable acidity profile in order to achieve high level of conversion of reactants and selectivity for desirable products of the catalytic reaction. In another aspect, a variety of feed stocks (e.g., starting compositions) may be used including an α-hydroxycarboxylic acid, an α-hydroxycarboxylic acid ester, a β-hydroxycarboxylic acid, a β-hydroxycarboxylic acid ester, cyclic esters thereof (e.g., lactide), and combinations thereof.