COSKATA, INC. Patent applications |
Patent application number | Title | Published |
20160130610 | PROCESSES FOR THE ACIDIC, ANAEROBIC CONVERSION OF HYDROGEN AND CARBON OXIDES TO OXYGENATED ORGANIC COMPOUND - Processes for the bioconversion of syngas to oxygenated organic compound are disclosed that reliably, cost-effectively and efficiently supply sulfur nutrient to microorganisms contained in acidic, aqueous fermentation menstrua. In the processes of this invention, basic, aqueous solution used to maintain the pH of the aqueous fermentation menstruum is used to remove hydrogen sulfide from the off-gas from the fermentation menstruum for recycle to the fermentation menstruum. | 05-12-2016 |
20160108439 | METHODS FOR CONTROLLING ACETOCLASTIC MICROORGANISMS IN ACETOGENIC SYNGAS FERMENTATION PROCESSES - Methods are disclosed for controlling the population of acetoclastic microorganisms in a process for the bioconversion of gas substrate comprising at least one of CO and a mixture of CO | 04-21-2016 |
20150132815 | PROCESSES FOR ENHANCING THE PERFORMANCE OF LARGE-SCALE, TANK ANAEROBIC FERMENTORS - Processes are disclosed for the low energy, anaerobic bioconversion of hydrogen and carbon monoxide in a gaseous substrate stream to oxygenated organic compounds such as ethanol by contact with microorganisms in a deep, tank fermentation system with high conversion efficiency of both hydrogen and carbon monoxide. Gas feed to the reactor is injected using a motive liquid to form a stable dispersion of microbubbles thereby reducing energy costs, and a portion of the off-gases from the reactor are recycled to (i) achieve a conversion of the total moles of carbon monoxide and hydrogen in the gas substrate to oxygenated organic compound of at least about 80 percent and (ii) attenuate the risk of carbon monoxide inhibition of the microorganism used for the bioconversion. | 05-14-2015 |
20150132810 | INTEGRATED PROCESSES FOR ANAEROBICALLY BIOCONVERTING HYDROGEN AND CARBON OXIDES TO OXYGENATED ORGANIC COMPOUNDS - Integrated processes are provided for the bioconversion of syngas to oxygenated organic compound with the ability to recover essential compounds for the fermentation and recycle the compounds to the fermentation. | 05-14-2015 |
20150044742 | PROCESSES FOR STARTING UP AND OPERATING DEEP TANK ANAEROBIC FERMENTATION REACTORS FOR MAKING OXYGENATED ORGANIC COMPOUND FROM CARBON MONOXIDE AND HYDROGEN - Processes for starting up of anaerobic, deep tank fermentation systems to anaerobically bioconvert hydrogen and carbon monoxide in a gaseous substrate stream to oxygenated organic compounds and for steady operation of such fermentation systems. In the processes injectors use a motive liquid to introduce gas substrate as a stable gas-in liquid dispersion into the deep tank fermentation reactor where at least one of:
| 02-12-2015 |
20150028260 | PROCESSES FOR THE CONVERSION OF BIOMASS TO OXYGENATED ORGANIC COMPOUND, APPARATUS THEREFOR AND COMPOSITIONS PRODUCED THEREBY - Processes are disclosed for the conversion of biomass to oxygenated organic compound using a simplified syngas cleanup operation that is cost effective and protects the fermentation operation. The processes of this invention treat the crude syngas from the gasifier by non-catalytic partial oxidation. The partial oxidation reduces the hydrocarbon content of the syngas such as methane, ethylene and acetylene to provide advantageous gas feeds for anaerobic fermentations to produce oxygenated organic compounds such as ethanol, propanol and butanol. Additionally, the partial oxidation facilitates any additional cleanup of the syngas as may be required for the anaerobic fermentation. Producer gases and partial oxidation processes are also disclosed. | 01-29-2015 |
20140273125 | PROCESSES FOR THE ANAEROBIC BIOCONVERSION OF SYNGAS TO OXYGENATED ORGANIC COMPOUND WITH IN SITU PROTECTION FROM HYDROGEN CYANIDE - 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. | 09-18-2014 |
20140272926 | SULFUR MANAGEMENT FOR PROCESSES AND CONTROL SYSTEMS FOR THE EFFICIENT ANAEROBIC CONERSION OF HYDROGEN AND CARBON OXIDES TO ALCOHOLS - High conversion efficiency processes are disclosed for the anaerobic bioconversion of syngas to alcohol by microorganisms having metabolic processes that utilize sulfur in limited amounts. The processes remove hydrogen sulfide from the gas leaving the bioreactor assembly by forming sulfur compounds that are beneficial to the microorganisms. The sulfur compounds can be returned to the bioreactor assembly to meet a portion of microorganism sulfur demand. | 09-18-2014 |
20140242654 | Butyrate Producing Clostridium species, Clostridium pharus - A clostridia bacterial species | 08-28-2014 |
20140220649 | METHOD FOR PRODUCING C4 OXYGENTATES BY FERMENTATION USING HIGH OXIDATION STATE SULFUR - The invention relates to improvements in the production of butanol and butyrate by microbial fermentation, particularly to production of alcohols by microbial fermentation of a substrate comprising CO and the addition of an inorganic sulfur additive. It more particularly relates to the provision of an inorganic organic sulfur source to a fermentation system such that one or more micro-organisms convert a substrate comprising CO to butanol. In one aspect the invention uses a sulfur additive comprising inorganic sulfur compounds having a +2 to a +4 sulfur oxidation state that produces sulfur oxoanions and hydrosulfur oxoanions in an aqueous fermentation medium. | 08-07-2014 |
20140206066 | Syntrophic co-culture of anaerobic microorganism for production of n-butanol from syngas - This invention provides compositions for the production of butanol. Specifically, the compositions of the present invention use syntrophic co-cultures for the production of butanol from syngas. | 07-24-2014 |
20140206052 | Method for production of n-butanol from syngas using syntrophic co-cultures of anaerobic microorganisms - This invention provides methods and systems for the production of butanol. Specifically, the methods and systems of the present invention use syntrophic co-cultures for the production of butanol from syngas. | 07-24-2014 |
20140065045 | PROCESSES FOR SELECTIVELY REDUCING THE CONCENTRATION OF HYDROGEN CYANIDE IN SYNGAS - This invention pertains to processes for selectively oxidizing hydrogen cyanide contained in syngas using permanganate anion as an oxidant contained in an aqueous solution that is contacted with the syngas under certain conditions of temperature, pressure and duration of contact. | 03-06-2014 |
20140051139 | PROCESSES FOR BIOCONVERSION OF SYNGAS TO OXYGENATED ORGANIC COMPOUND PROVIDING STORAGE AND REACTIVATION OF MICROORGANISM CONCENTRATES - Processes are disclosed for preparing microorganism concentrates from fermentation broth containing a free suspension of the microorganisms which is used for the anaerobic conversion of syngas to oxygenated organic compound. The processes involve the use of processing steps and the presence of certain additives to enhance the ability of the microorganism concentrate to be stored for extended periods and reactivated. | 02-20-2014 |
20140017747 | METHOD FOR PRODUCING C2 OXYGENATES BY FERMENTATION USING HIGH OXIDATION STATE SULFUR - The invention relates to improvements in the production of ethanol and acetate by microbial fermentation, particularly to production of alcohols by microbial fermentation of a substrate comprising CO and the addition of an inorganic sulfur additive. It more particularly relates to the provision of an inorganic organic sulfur source to a fermentation system such that one or more microorganisms convert a substrate comprising CO to ethanol. In one aspect the invention uses a sulfur additive comprising inorganic sulfur compounds having a +2 to a +4 sulfur oxidation state that produces sulfur oxoanions and hydrosulfur oxoanions in an aqueous fermentation medium. | 01-16-2014 |
20130137151 | PROCESSES FOR THE CONVERSION OF BIOMASS TO OXYGENATED ORGANIC COMPOUND, APPARATUS THEREFOR AND COMPOSITIONS PRODUCED THEREBY - Processes are disclosed for the conversion of biomass to oxygenated organic compound using a simplified syngas cleanup operation that is cost effective and protects the fermentation operation. The processes of this invention treat the crude syngas from the gasifier by non-catalytic partial oxidation. The partial oxidation reduces the hydrocarbon content of the syngas such as methane, ethylene and acetylene to provide advantageous gas feeds for anaerobic fermentations to produce oxygenated organic compounds such as ethanol, propanol and butanol. Additionally, the partial oxidation facilitates any additional cleanup of the syngas as may be required for the anaerobic fermentation. Producer gases and partial oxidation processes are also disclosed. | 05-30-2013 |
20130078689 | PROCESSES FOR ENHANCING THE PERFORMANCE OF LARGE-SCALE, STIRRED TANK ANAEROBIC FERMENTORS AND APPARATUS THEREFOR - Processes and apparatus are disclosed for the low energy, anaerobic bioconversion of hydrogen and carbon monoxide in a gaseous substrate stream to oxygenated organic compounds such as ethanol by contact with microorganisms in a deep, stirred tank fermentation system with high conversion efficiency of both hydrogen and carbon monoxide. Gas feed to the reactor is injected using a motive liquid to form a stable dispersion of microbubbles thereby reducing energy costs, and a portion of the off-gases from the reactor are recycled to (i) achieve a conversion of the total moles of carbon monoxide and hydrogen in the gas substrate to oxygenated organic compound of at least about 80 percent and (ii) attenuate the risk of carbon monoxide inhibition of the microorganism used for the bioconversion. | 03-28-2013 |
20130071897 | METHOD FOR CONTROLLING UNDESIRABLE BYPRODUCTS FORMATION CAUSED BY CONTAMINATING ORGANISMS IN THE PRODUCTION OF ETHANOL FROM SYNGAS - A method of operating a fermentation zone for the production of ethanol from syngas uses a crotonate-like compound to prevent or reverse the effects of butyrogen contamination. The crotonate-like compound works in continuous fermentation processes to reduce or eliminate contamination from butyrate and butanol in the syngas derived ethanol product. | 03-21-2013 |
20120156747 | Novel Ethanologenic Clostridium species, Clostridium coskatii - An isolated clostridia bacterial species ( | 06-21-2012 |
20120003652 | Essential genes encoding conserved metabolic pathway function in autotrophic solventogenic clostridial species - Essential genes coding for the metabolic pathway of solventogenic autotrophic Clostridia were sequenced, and functionality was confirmed. The present invention utilizes a comparative inter-species approach to develop the minimum set of essential genes for metabolic function and estimate productivity in species of suspected solventogenic capability. | 01-05-2012 |
20110229947 | Novel Ethanologenic Clostridium species, Clostridium coskatii - A novel clostridia bacterial species ( | 09-22-2011 |
20110008860 | Genes encoding key catalyzing mechanisms for ethanol production from syngas fermentation - Gene sequences of key acetogenic clostridial species were sequenced and isolated. Genes of interest were identified, and functionality was established. Key genes of interest for metabolic catalyzing activity in clostridial species include a three-gene operon coding for CODH activity, a two-gene operon coding for PTA-ACK, and a novel acetyl coenzyme A reductase. The promoter regions of the two operons and the acetyl coA reductase are manipulated to increase ethanol production. | 01-13-2011 |