Discovering the role of Au and KOAc in the catalysis of vinyl acetate synthesis

摘要: Publisher Summary One of the most studied applications Catalytic Membrane Reactors (CMRs) is dehydrogenation alkanes. For this reaction, in conventional reactors and under classical conditions, conversion controlled by thermodynamics high temperatures are required leading to a rapid catalyst deactivation expensive operative costs. In CMR, selective removal hydrogen from reaction zone through perm membrane will favor then allow higher olefin yields when compared (non-membrane) reactors. Following principle, using membrane, lower can be used longer lifetime energy cost saving. However, such should stable at temperature (ca 500oC) highly (loss reactant course avoided) permeable enough (the permeation rate same range as rate). Dense Pd-based membranes have been first for CMRs applications. They H 2 but expensive, sensitive ageing poisoning, strongly limited their low permeabilities. This chapter describes morphological transport properties composite zeolite (silicalite)—alumina membrane. Results also briefly given chapter.