Aponte, Yira et al. published their research in Fuel in 2016 | CAS: 638-02-8

2,5-Dimethylthiophene (cas: 638-02-8) belongs to benzothiophene derivatives. Benzothiophene is used as starting material for the synthesis of bioactive molecules. The core structure is a part of various pharmaceutical substances and natural products. The different substitution patterns in these heterocycles offer new opportunities for drug discovery and other applications in materials science.Application of 638-02-8

A fluidizable Zn-offretite for selective thiophenic species adsorption. Additive performance under FCC conditions was written by Aponte, Yira;Che-Galicia, Gamaliel;de Lasa, Hugo. And the article was included in Fuel in 2016.Application of 638-02-8 The following contents are mentioned in the article:

This study evaluates a new Zn-OFF additive (3.5 weight% of Zn in an offretite zeolite) to reduce sulfur in gasoline range hydrocarbons. The additive is contacted with Thiophene (Th), 2-methyl-thiophene (2MTh) and 2,5-dimethyl-thiophene (25DMTh) which are used to represent sulfur species. These species are concurrently fed with 1,3,5 trimethylbenzene (TMB) into a CREC Fluidized Reactor Simulator. Selected temperatures, partial pressures, reaction times and C/Os (catalyst/oil) are representative of operating conditions in FCC industrial units. It is proven that the Zn-OFF additive displays an excellent performance for 2MTh selective adsorption. The best sulfur removal using the Zn-OFF additive was found using the 2MTh at 530 °C and 5 s. It is hypothesized that the selective sulfur adsorption on the Zn-OFF additive involves dominant Lewis acid sites. On the basis of the results reported, it is anticipated that the Zn-OFF additive can provide a valuable “in situ” sulfur selective adsorption for the thiophene compounds It is also found that the used Zn-OFF additive while blended with a FCC com. catalyst mixture reduces coke production, in particular sulfur in coke. It is thus, demonstrated that under typical FCC unit operating conditions, the Zn-OFF additive can decrease sulfur in coke with this leading to a mitigation of SOx emissions in the FCC regenerator, where coke is combusted. This study involved multiple reactions and reactants, such as 2,5-Dimethylthiophene (cas: 638-02-8Application of 638-02-8).

2,5-Dimethylthiophene (cas: 638-02-8) belongs to benzothiophene derivatives. Benzothiophene is used as starting material for the synthesis of bioactive molecules. The core structure is a part of various pharmaceutical substances and natural products. The different substitution patterns in these heterocycles offer new opportunities for drug discovery and other applications in materials science.Application of 638-02-8

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem