Steam cracking of green diesel (C12) to BTX and olefins over silane-treated hierarchical BEA

Nano BEA zeolite catalysts for the selective catalytic cracking of n-dodecane to light olefins

“…65–82% for the decane fed into the reactor. Sanhoob et al 51 tested parent and modified commercial BEA zeolites in the cracking of n-dodecane in the presence of 10% steam at 350 °C. The BEA catalyst showed a conversion of n-dodecane of only 30 wt%.…”

“…Sanhoob et al 51 post-modified a commercial BEA zeolite by desilication using different agents and applied it in the catalytic cracking of n-dodecane. The applied post-modifications enhanced the n-dodecane conversion from 29% to 76%.…”

State of the Art and Perspectives of Hierarchical Zeolites: Practical Overview of Synthesis Methods and Use in Catalysis

“…[347] Similar mesoporogens with different alkyl chain-lengths (e.g., TEAOH, TPAOH, TBAOH), were used by several research groups. [345,[348][349][350][351] As such, Werner et al [348] and Morgado Prates et al [345] performed a desilication with tetraethylammonium hydroxide/bromide (TEAOH, TEABr). The first group reported no loss of microporosity and crystallinity, as well as a higher activity in the epoxidation of cyclooctene.…”

“…[348] These results were also obtained by the second group who obtained an improved crystallinity and thermal stability in the synthesis of hollow beta zeolite nanocrystals. [345] Tetrapropylammonium hydroxide/ bromide (TPAOH, TPABr) was used by multiple groups, [349][350][351] as is the case for tetrabutylammonium hydroxide/bromide (TBAOH, TBABr) [352] and cetyltrimethylammonium hydroxide/bromide (CTAOH, CTABr). [353][354][355] Although there is a subtle difference in structure, the overall outcome after use of these mesoporogens was similar.…”

“…[ 347 ] Similar mesoporogens with different alkyl chain‐lengths (e.g., TEAOH, TPAOH, TBAOH), were used by several research groups. [ 345,348–351 ] As such, Werner et al. [ 348 ] and Morgado Prates et al.…”