Ethylbenzene production over platinum catalysts supported on modified KY zeolites

Influence of Nickel Modified Beta Zeolite in the Production of BTEX During Analytical Pyrolysis of Medium-Density Fiberboard (MDF)

“…The production of MAH, especially BTEX from renewable sources, arouses great interest in academia and industry, considering that their current production occurs exclusively through petroleum cracking. The BTEX compounds are used in several branches of industry, being the raw material in the manufacture of a large variety of products (solvents, plastics, detergents, cosmetics, pharmaceuticals, among others) [17,23,24]. For this reason, the production of BTEX through alternative sources such as catalytic pyrolysis of residual biomass, is a promising proposal.…”

Highly efficient Sn-modified Pt/KY catalyst for n-octane reforming: the synergistic effect of Pt in different electronic states

“…Obviously, these samples all show characteristic diffraction peaks appearing at 6.2°, 10.1°, 11.9°, 18.6° and 20.3°, which can be well-indexed to KY zeolite (JCPDS PDF#38-0239). 25,27 Furthermore, no difference in the XRD spectra of these samples is presented, suggesting that Sn modification has less influence on the zeolite crystal structure. 47–49 In addition, no characteristic peaks related to Pt or Sn species are observed in these XRD spectra, which indicates that the introduced Pt and Sn species are highly dispersed on the KY zeolite.…”

“…Ordinarily, prolonging the lifetime of a catalyst for larger-sized alkane aromatization is a major challenge. 18,25,27 To explore the stability of the Pt/KYSn( x ) catalysts, the variation in n -octane conversion and product selectivity versus reaction time is displayed. As shown in Fig.…”

“…22,23 Furthermore, Y zeolite with its three-dimensional structure has a larger orifice (7.4 Å) than KL zeolite (7.1 Å), which may contribute to the escape of larger aromatics, inhibiting secondary hydrogenolysis. 24,25 While the acidic sites on traditional Y zeolite will cause high selectivity to by-products. 26 Gratifyingly, our previous work obtained non-acidic KY zeolite and recognized the Pt/KY catalyst as the appropriate catalytic system for converting n -alkane to aromatics.…”

Insight into the performance of different Pt/KL catalysts for n-alkane (C6–C8) aromatization: catalytic role of zeolite channels

“…Alkane aromatization is a significant industrial catalytic reaction for producing high-value aromatics (benzene, ethylbenzene or xylene) from naphtha. 1–3 However, this process has aroused widespread concern in recent years owing to the acceleration toward an environmentally friendly society, which requires the improvement of gasoline quality to reduce carbon emissions. Pt-based catalysts have been applied in the reforming of light naphtha for decades, owing to their superior ability for the cleavage of C–H bonds.…”