METHOD FOR EXTRACTING BUTYRIC ACID FROM THE BUTYRATE SALT OF MICROORGANISM FERMENTED LIQUID AND CHEMICALLY CONVERTING BUTYRIC ACID INTO BIOFUEL

摘要

THE PRESENT INVENTION RELATES TO A METHOD FOR EXTRACTING BUTYRIC ACID BY APPLYING PRESSURIZED CARBON DIOXIDE TO A FERMENTED BROTH PRODUCED FROM A STRAIN THAT PRODUCES THE BUTYRIC ACID. MORE PARTICULARLY, THE PRESENT INVENTION RELATES TO A METHOD FOR PRODUCING BUTYRIC ACID BY CONVERTING A BUTYRATE SALT BONDED WITH A CATION CONTAINED IN THE FERMENTED BROTH PRODUCED FROM THE STRAIN THAT PRODUCES THE BUTYRIC ACID INTO A BUTYRIC ACID THAT CAN BE EASILY EXTRACTED BY A SOLVENT, BY USING PRESSURIZED CARBON DIOXIDE, AND EXTRACTING BUTYRIC ACID BY USING AN ORGANIC SOLVENT. FURTHER, THE PRESENT INVENTION RELATES TO A METHOD FOR PRODUCING BUTANOL BY ENABLING THE BUTYRIC ACID EXTRACTED BY THE ABOVE-DESCRIBED METHOD TO REACT WITH HYDROGEN, AND TO A METHOD FOR PRODUCING BUTANOL BY ENABLING THE THUS-EXTRACTED BUTYRIC ACID TO SEQUENTIALLY REACT WITH BUTANOL AND HYDROGEN. THE PRESENT INVENTION INVOLVES CONVERTING THE BUTYRATE SALT CONTAINED IN THE FERMENTED BROTH INTO A BUTYRIC ACID TO SIGNIFICANTLY IMPROVE THE EFFICIENCY OF THE SOLVENT-EXTRACTION OF BUTVRIC ACID FROM THE FERMENTED BROTH. AS A RESULT, THE PRESENT INVENTION PRODUCES A BUTYRIC ACID IN A BIOLOGICAL MANNER AS WELL AS IN AN EFFICIENT AND ECONOMICALLY ADVANTAGEOUS MANNER, AND THUS BASICALLY IMPROVES THE COMPETITIVENESS IN PRICE OF BIO-BUTANOL THAT IS PRODUCED USING A BIOLOGICAL METHOD AND A CHEMICAL METHOD N SEQUENCE.