Reactive sorption of chlorinated VOCs on ZSM-5 zeolites at ambient and elevated temperatures

Recent Advances in the Catalytic Oxidation of Volatile Organic Compounds: A Review Based on Pollutant Sorts and Sources

“…The oxidation mechanisms of CVOCs have also been extensively studied and discussed in the literature. It is generally agreed that dissociation of the C–Cl bond occurs first and is the rate-determining step. , Hindermann and co-workers indicated that adsorbed dichloromethane (DCM) molecules could react with surface hydroxyl groups in a γ-Al 2 O 3 catalyst to yield chloromethoxy species. The sequential reaction of this species leads to the formation of a chemisorbed formaldehyde analogue and formation of methoxy or formate groups.…”

Spectroscopic and Computational Study of Cr Oxide Structures and Their Anchoring Sites on ZSM-5 Zeolites

“…Cr catalysts with silica and alumina supports are used in a wide range of industrial applications. For example, Cr/SiO 2 catalysts are used in the production of high-density polyethylene − and Cr/Al 2 O 3 in alkane dehydrogenation. ,,, Zeolite-supported Cr catalysts, specifically Cr/ZSM-5, have been evaluated for multiple applications, such as toluene disproportionation, combustion of volatile and chlorinated organic compounds, − reduction of nitrogen oxides, , styrene selective oxidation to benzaldehyde, photocatalytic partial oxidation of propane to acetone, ethylene ammoxidation, , and oxidative dehydrogenation of ethane with CO 2 . Furthermore, Cr has been used as a promoter for other metals supported on ZSM-5 or physically mixed with ZSM-5: for example, for Mo/ZSM-5 in methane dehydroaromatization, for Zn and Co/ZSM-5 in Fischer–Tropsch synthesis, , and in NO reduction by H 2 …”

Catalytic behavior and reaction routes of MEK oxidation over Pd/ZSM-5 and Pd–Ce/ZSM-5 catalysts

“…Noble metal catalysts are generally accepted to be more active than metal oxide catalysts but the latter are cheaper, more thermally stable, and have a greater resistance to poisoning. Recently interest has arisen in the use of cerium (Ce) and several studies using Ce oxide (CeO 2 ) as an additive on a palladium (Pd)-supported catalyst have been reported [12,[15][16][17][18][19].…”