Abstract: A process and system for producing a fermentable gas stream from a gas source that contains one or more impurity which may be harmful to the fermentation process is provided. To produce the fermentable gas stream, the gas stream is passed through a specifically ordered series of removal beds. The removal beds remove and/or convert various impurities found in the gas stream which may have harmful effects on downstream removal beds and/or inhibitory effects on downstream gas fermenting microorganisms. At least a portion of the fermentable gas stream may be capable of being passed to a bioreactor, which contains gas fermenting microorganisms.

Abstract: Process for separation of phenyl alcohol fermentation product from fermentation broth by employing both distillation and phase separation where the phenyl alcohol is removed from a distillation column as a side draw. Process provides a less complex and less costly alternative to conventional separation techniques used for high boiling point materials from fermentation broth.

Abstract: Integrated process for providing multiple raw materials to a downstream operation to generate an article of manufacture. Pyrolysis, torrefaction, reforming, partial oxidation, and/or gasification is integrated with gas fermentation. Integrated process converts carbon sources that would otherwise be vented to the atmosphere or discarded as waste to a fermentation product and one or more byproducts, which in turn are provided to a downstream operation to generate an article of manufacture. In certain aspects, the fermentation product may be ethanol, isoprene, butane diol, ethylene. In certain aspects, the byproduct may be metal, metal oxide, char, silica, and or steel. The downstream operation to generate an article of manufacture may be an operation to generate plastic products, rubber products, textiles, clothes, and the like.

Abstract: Integrated process for providing raw materials to a downstream operation to generate an article of manufacture. A carbon black production process is integrated with a gas fermentation process, and a feedstock preparation process is integrated with gas fermentation process. Both carbon black and a gas fermentation product are provided to a downstream operation. Secondary products from the carbon black process may be used in the gas fermentation process. Byproducts from the feedstock preparation process may be provided to the downstream operation or may be passed to the carbon black process. In certain aspects, the fermentation product may be ethanol, isoprene, butane diol, and/or ethylene. In certain aspects, the byproduct may be metal, metal oxide, char, silica, and/or steel. In certain aspects, the secondary product may be hydrogen and/or carbon dioxide. The downstream operation may be to generate plastic products, rubber products, tires, textiles, clothes, and the like.

Abstract: The present disclosure generally relates to methods for the recovery of amines from aqueous mixtures. In particular, the disclosure relates to methods for separating amines from amine-containing aqueous mixtures by adjusting the pH of the aqueous mixture relative to the highest pKa value for the amines.

Abstract: An integrated process and system for employing low conversion rWGS to prepare a gas fermentation feed stream from a CO2 source and a hydrogen source in order to produce at least one gas fermentation product. Low conversion rWGS reactors may (1) employ a wider selection of inorganic catalysts then rWGS reactors requiring high temperature operation, (2) allow for use of an electric heater instead of a fired heater to preheat feed stream to the low conversion rWGS reactor, and (3) extend rWGS catalyst life by reducing the amount of water produced in the rWGS reaction.

Abstract: The present disclosure generally relates to methods for the recovery of amines from aqueous mixtures. In particular, the disclosure relates to methods for separating amines from amine-containing aqueous mixtures by adjusting the pH of the aqueous mixture relative to the highest pKa value for the amines.