Flexible fermentation platform for improved conversion of carbon dioxide to products

• Main Authors: SIMPSON SEAN DENNIS, ROSIN, RICHARD, R, CONRADO ROBERT JOHN, BROMLEY JASON CARL, YOUNGS, DAVID, E, MARTIN MICHAEL EMERSON
• Format: Patent
• Language: Chinese; English
• Published: 24.11.2023
• Subjects: BEER; BIOCHEMISTRY; CHEMISTRY; ENZYMOLOGY; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE; METALLURGY; MICROBIOLOGY; MUTATION OR GENETIC ENGINEERING; SPIRITS; VINEGAR; WINE

An integrated method and system for producing at least one gas fermentation product from a gaseous stream has been developed. The present disclosure provides improved carbon utilization by recirculating bioreactor tail gas using a variety of different flow schemes and employing a CO2 to CO conversion system, such as a reverse water gas shift unit. Recycling the bioreactor tail gas and employing a CO2 to CO conversion process provides an advantageous H2: CO molar ratio of the gas fermentation bioreactor feed to increase the production of fermentation products. Bypass embodiments provide optimal dimensions of the reverse water gas shift unit to minimize cost. 已经开发了一种用于从气态流产生至少一种气体发酵产物的集成方法和系统。本公开通过采用各种不同的流动方案使生物反应器尾气再循环和采用CO2至CO转化系统，如反向水煤气变换单元来提供经改进的碳利用率。使所述生物反应器尾气再循环和采用CO2至CO转化过程提供了气体发酵生物反应器进料的有利的H2:CO摩尔比以提高发酵产物的产生。旁路实施例提供了反向水煤气变换单元的最佳尺寸以使成本最小化。