Conversion of furan over gallium and zinc promoted ZSM-5: The effect of metal and acid sites

Valorisation of 2,5-dimethylfuran over zeolite catalysts studied by on-line FTIR-MS gas phase analysis

“…In contrast to previous studies, where 1,2-propadiene has been postulated to play a role during aromatisation, 15,16 the presence of 1,2-propadiene can not be confirmed based on the IR spectra during the online analysis. Additionally, the pathway of BTX formation via Diels-Alder cycloaddition and subsequent dehydration of furans and olefins in flow reactor conditions is debated.…”

“…We start off this section by considering olefins, which are some of the main products from catalytic conversion of furanic compounds over zeolites. [15][16][17] The present focus is on the 1,3-butadiene as well as the two main alkenes, namely, ethene and propene. Although propadiene has been postulated to play a role during aromatisation, 15,16 and also been observed during furan conversion, 15 the presence of propadiene in the product stream during 2,5-dmf conversion cannot be confirmed here.…”

“…S8. The selectivity towards xylenes is in general very low for CFP of furanic compounds 12,[15][16][17][18]39 and more research is needed as to understand how to increase their proportion. The highest toluene formation is observed for H-ZSM-5 (38) and the H-BEA(37) sample at 500 °C and 400 °C.…”

“…For the catalytic conversion of furans to BTX, MFI and beta type zeolites have been identified as promising catalyst candidates thanks to their shape selectivity. 13,14 As examples, the selectivity towards BTX has been reported to be 20% 15 , 35% 16 and ca. 50% 17,18 .…”

Mesostructured Zn/ZSM‐5 Zeolite as Catalyst for Furan Deoxygenation,

“…It is particularly preferable to design a catalyst in which both decarbonylation and aromatization reaction rates are increased. It has been proven that the addition of zinc to ZSM‐5 promotes decarbonylation, resulting in an increase in aromatics production from furan [14,16–18] . Zinc promoted ZSM‐5 has been vastly studied in propane aromatization [19–22] .…”