The transformation of 2-methylthiophene (100 ppm) in an n-hexane stream was studied on clays with nature/quantity of distinct acid sites aiming at evaluating the opening of thiophenic ring and the formation of H₂S to be used in the desulfurization of fuels. KSF clay was modified with the impregnation of zinc (Zn/KSF), and the introduction of aluminum oxide pillars (KSF-PILC and Zn/KSF-PILC). The prepared materials were characterized using XRD, N₂ physisorption, XRF, DRIFTS-C₅H₅N, TPD-NH₃, SEM, and TPO. It was observed that the introduction of pillars decreased the Brønsted/Lewis ratio, and increased the total strength of acid sites. The catalytic evaluation showed that hydrogen transfer reactions can lead to the formation of H₂S or 2-propanethiol (opening of the thiophenic ring). It was verified that the KSF clay possesses a higher Brønsted acid site count, leading, predominantly, to the formation of H₂S. The addition of zinc to the pillarized clay (Zn/KSF-PILC) increased the quantity of Lewis acid sites, and decreased hydrogen transfer, having as the main product 2-propanethiol, resultant of the opening of the thiophenic ring. Pillarization also resulted in a lower formation of coke on the catalyst.

在具有不同酸位性质/数量的粘土上研究了2-甲基噻吩（100 ppm）在正己烷中的转化，旨在评估噻吩环的开环和用于脱硫的H ₂ S的形成。燃料。KSF粘土通过浸渍锌（Zn / KSF）和引入氧化铝支柱（KSF-PILC和Zn / KSF-PILC）进行了改性。使用XRD，N ₂物理吸附，XRF，DRIFTS-C ₅ H ₅ N，TPD-NH ₃表征制备的材料，SEM和TPO。观察到，引入支柱降低了布朗斯台德/刘易斯比，并增加了酸性部位的总强度。催化评估表明，氢转移反应可导致H ₂ S或2-丙硫醇的形成（噻吩环的打开）。证实KSF粘土具有更高的布朗斯台德酸位点数量，主要导致H ₂ S的形成。在柱状粘土中添加锌（Zn / KSF-PILC）可以增加路易斯酸位点的数量，并且减少了以噻吩环的开环为主要产物2-丙硫醇的氢转移。柱化还导致催化剂上焦炭形成的减少。