公开(公告)号：US20150184093A1

公开(公告)日：2015-07-02

申请号：US14645169

申请日：2015-03-11

Applicant: Coskata, Inc.

Inventor： Robert Hickey ,  Jianxin Du

IPC: C10K1/10 ,  C10K1/00 ,  C10K1/04 ,  C10J3/72

CPC classification number: C10K1/10 ,  C10G2300/1011 ,  C10J3/72 ,  C10J2300/0916 ,  C10J2300/093 ,  C10J2300/0943 ,  C10J2300/0946 ,  C10J2300/0959 ,  C10J2300/0976 ,  C10J2300/1603 ,  C10J2300/1615 ,  C10J2300/1618 ,  C10J2300/1846 ,  C10J2300/1853 ,  C10K1/002 ,  C10K1/005 ,  C10K1/046 ,  C12P7/065 ,  C12P7/08 ,  C12P7/16 ,  Y02E50/10 ,  Y02E50/17 ,  Y02P20/125 ,  Y02P20/582

Abstract: Integrated processes are provided for syngas refining and bioconversion of syngas to oxygenated organic compound. In the integrated processes ammonia contained in the syngas is recovered and used as a source of nitrogen and water for the fermentation. The integrated processes first remove tars from syngas by scrubbing using a first aqueous medium under conditions that ammonium bicarbonate is unstable. With tars removed, contact between the syngas and a second aqueous medium enables ammonia and carbon dioxide to be removed from the syngas without undue removal of components adverse to the fermentation, processing or oxygenated product such as benzene, toluene, xylene, ethylene, acetylene, and hydrogen cyanide. At least a portion of the second aqueous medium is supplied as a source of water and ammonia for the fermentation.

Abstract translation: 提供了合成气精炼和合成气生物转化为含氧有机化合物的综合方法。 在综合处理中，合成气中所含的氨被回收并用作发酵的氮和水的来源。 整合过程首先通过在碳酸氢铵不稳定的条件下使用第一水性介质进行洗涤从合成气中除去焦油。 除去焦油后，合成气和第二水介质之间的接触使氨和二氧化碳从合成气中除去，而不会不适当地除去不利于发酵，加工或氧化产物如苯，甲苯，二甲苯，乙烯，乙炔， 和氰化氢。 第二水性介质的至少一部分作为水和氨的来源被供应用于发酵。

公开(公告)号：US09518237B2

公开(公告)日：2016-12-13

申请号：US14645169

申请日：2015-03-11

Applicant: Coskata, Inc.

Inventor： Robert Hickey ,  Jianxin Du

IPC: C10J3/72 ,  C10K1/00 ,  C10K1/04 ,  C10K1/10 ,  C12P7/16 ,  C12P7/06 ,  C12P7/08

CPC classification number: C10K1/10 ,  C10G2300/1011 ,  C10J3/72 ,  C10J2300/0916 ,  C10J2300/093 ,  C10J2300/0943 ,  C10J2300/0946 ,  C10J2300/0959 ,  C10J2300/0976 ,  C10J2300/1603 ,  C10J2300/1615 ,  C10J2300/1618 ,  C10J2300/1846 ,  C10J2300/1853 ,  C10K1/002 ,  C10K1/005 ,  C10K1/046 ,  C12P7/065 ,  C12P7/08 ,  C12P7/16 ,  Y02E50/10 ,  Y02E50/17 ,  Y02P20/125 ,  Y02P20/582

Abstract: Integrated processes are provided for syngas refining and bioconversion of syngas to oxygenated organic compound. In the integrated processes ammonia contained in the syngas is recovered and used as a source of nitrogen and water for the fermentation. The integrated processes first remove tars from syngas by scrubbing using a first aqueous medium under conditions that ammonium bicarbonate is unstable. With tars removed, contact between the syngas and a second aqueous medium enables ammonia and carbon dioxide to be removed from the syngas without undue removal of components adverse to the fermentation, processing or oxygenated product such as benzene, toluene, xylene, ethylene, acetylene, and hydrogen cyanide. At least a portion of the second aqueous medium is supplied as a source of water and ammonia for the fermentation.

公开(公告)号：US09034617B2

公开(公告)日：2015-05-19

申请号：US13828542

申请日：2013-03-14

Applicant: COSKATA, INC.

Inventor： Robert Hickey ,  Jianxin Du ,  Andrew Reeves ,  Richard E. Tobey

IPC: C12P7/16 ,  C12P7/06 ,  C12P7/04

CPC classification number: C12P7/16 ,  C12N1/20 ,  C12N1/38 ,  C12P7/04 ,  C12P7/06 ,  Y02E50/10 ,  Y02E50/17

Abstract: Processes are disclosed for the anaerobic bioconversion of syngas to oxygenated organic compound that use an in situ method for protecting the microorganisms from hydrogen cyanide contained in the syngas that passes to the fermentation broth. The fermentation broth is maintained at a pH of between about 4 and 6, and dissolved metal cation of one or more of iron, cobalt, nickel and zinc is provided to the fermentation broth in an amount sufficient to form, under the conditions of the fermentation broth, a substantially insoluble metal complex with the metal cation and cyanide anion. The rate of formation of the insoluble complex is sufficiently high that that the amount of cyanide that is taken up by microorganisms does not result in an undue adverse effect on the population of microorganisms.

Abstract translation: 公开了将合成气厌氧生物转化为含氧有机化合物的方法，其使用原位方法保护微生物免受通过发酵液的合成气中所含的氰化氢。 发酵液的pH值保持在4〜6左右之间，并在发酵液中提供一种或多种铁，钴，镍，锌溶解的金属阳离子，其量足以在发酵条件下形成 肉汤，与金属阳离子和氰化物阴离子基本不溶的金属络合物。 不溶性络合物的形成速率足够高，使得微生物吸收的氰化物的量不会对微生物群体产生不适当的不利影响。