Gas-expanded liquids for sustainable catalysis and novel materials: Recent advances

摘要: Abstract Employing a multiscale systems-based research approach, chemists and chemical engineers at the Center for Environmentally Beneficial Catalysis (CEBC) are collaboratively addressing major grand challenges facing sustainable manufacture of fuels chemicals from both traditional renewable feedstocks. By judiciously combining principles green chemistry reactor engineering, augmented by valuable insights industrial partners, CEBC researchers developing alternative technology concepts that minimize environmental footprint manufacturing processes including reduction carbon emissions. Such collaborations have resulted in several remarkable discoveries as follows: CO 2 -expanded liquids (CXLs) reaction media selective inherently safe O oxidations terephthalic acid production p -xylene with potentially reduced solvent burning (i.e., footprint); propylene oxide environmentally benign solvents oxidant, exploiting compressibility ambient temperatures process intensification; novel pressure-intensified ethylene virtually eliminating formation byproduct; highly hydroformylation higher olefins employing CXLs soluble polymer-supported homogeneous Rh-based catalysts easily retained solution while product is isolated membrane filtration; creation nanoparticles transition metal complexes unique functional properties such reversible oxygen binding room-temperature nitric disproportionation. Quantitative economic impact analyses been employed to benchmark CEBC's against conventional guide development. Examples advances processing discussed this review.