|United States Of America||Issued Patent||10,058,855||08/28/2018||2014-098|
The selective and efficient conversion of light alkanes into value-added chemicals remains a challenge for those in the petrochemical and chemical industries. Currently, there is no go-to commercial process for the selective oxidative conversion of C1-C3 hydrocarbons into value-added chemical feedstocks, such as methanol and ethanol. Industrially, methanol is produced in an indirect and energy intensive process beginning with the steam reformation of natural gas into synthesis gas. After fermentation, ethanol is largely produced from the hydration of ethylene/ethene, which relies on the use of concentrated acids and elevates risk for human safety and environment. To overcome these challenges, researchers at UC Berkeley have devised novel materials and methods involving redox-active metals within porous metal-organic frameworks for driving improved catalytic oxidation of small hydrocarbons to their corresponding alcohols and aldehydes. This innovation could be of special importance to the boom of shale gas processing, which consists of largely methane, but also contains large amounts of ethane and other light alkane impurities.