Abstract: Certain embodiments are directed to methods of purifying methanol comprising fractionating a feed source into methanol and heavy alcohol or fusel alcohol fractions and further recovering methanol from the fusel alcohol fraction.

Abstract: Certain embodiments are directed to methods of purifying methanol comprising fractionating a feed source into methanol and heavy alcohol or fusel alcohol fractions and further recovering methanol from the fusel alcohol fraction.

Abstract: Disclosed herein are processes for producing a synthesis gas mixture and for producing an organic chemical product. The process can comprise: (i) steam reforming a feed gas stream comprising one or more hydrocarbons to produce a reformed synthesis gas mixture comprising H2, CO and CO2; (ii) cooling reformed synthesis gas mixture obtained in (i) and removing H2O from the reformed gas mixture; (iii) subjecting reformed synthesis gas mixture obtained in (ii) to a reverse water gas shift reaction so as to decrease the H2/CO molar ratio of the reformed synthesis gas mixture; and (iv) removing CO2 from synthesis gas mixture obtained in (iii). A first stream of CO2 is added to the gas mixture in step (i) and a second stream of CO2 is added to the gas mixture in step (iii), and wherein the first and/or second streams comprise recycled CO2 removed in step (iv).