Enhanced production of thiophenes, pyrroles, and olefines via a catalyst-assisted pyrolysis of oil shale

IF 3.1 2区化学 Q2 CHEMISTRY, ANALYTICAL

Thermochimica Acta Pub Date : 2024-11-19 DOI:10.1016/j.tca.2024.179900

Zhaoyang Ren , Guojing Xu , Guangwei Geng , Junjie Wang , Zhenpeng Wang , Jian-Zheng Su , Xiang-Long Meng , Penglei Chen

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Abstract

Phosphotungstic acid/boehmite (PWA/B) is used to catalyze oil shale (OS) pyrolysis, where either the quality of thus-catalyzed pyrolyzates could be upgraded distinctly with regard to an evident removal of heteroatom-containing species and a remarkable enrichment in the content of hydrocarbons and short-chain aliphatic hydrocarbons, or the proportion of a number of valuable basic chemicals of extensive engineering/scientific interests, e.g., pyrroles, thiophenes, α-olefines and diolefines, could be enhanced substantially. We reveal that the density/acidity of Brønsted acids of PWA/B are larger/stronger than those of Lewis acids such that their collaborate-competition actions confer it with fascinating catalytic performances. Our work likely launches new opportunities for manufacturing value-added chemical/tecton or producing high-quality petroleum-like fuel using OS as feedstock, and it provides important guidance for the design and seeking of sophisticated catalyst for OS exploitation.

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通过催化剂辅助热解油页岩提高噻吩、吡咯和烯烃的产量

磷钨酸/沸石（PWA/B）可用于催化油页岩（OS）热解，经此催化的热解产物的质量可明显提高，含杂原子的物质明显去除，碳氢化合物和短链脂肪族碳氢化合物的含量显著增加、吡咯类、噻吩类、α-烯烃类和二烯烃类的比例可能会大幅提高。我们发现，PWA/B 的布氏酸密度/酸度比路易斯酸的密度/酸度更大/更强，因此它们的协同竞争作用使其具有迷人的催化性能。我们的工作可能会为以操作系统为原料生产高附加值化学品/涂料或高品质类石油燃料带来新的机遇，并为设计和寻求用于操作系统开发的先进催化剂提供重要指导。

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来源期刊

Thermochimica Acta 化学-分析化学

CiteScore

6.50

自引率

8.60%

发文量

210

审稿时长

40 days

期刊介绍： Thermochimica Acta publishes original research contributions covering all aspects of thermoanalytical and calorimetric methods and their application to experimental chemistry, physics, biology and engineering. The journal aims to span the whole range from fundamental research to practical application. The journal focuses on the research that advances physical and analytical science of thermal phenomena. Therefore, the manuscripts are expected to provide important insights into the thermal phenomena studied or to propose significant improvements of analytical or computational techniques employed in thermal studies. Manuscripts that report the results of routine thermal measurements are not suitable for publication in Thermochimica Acta. The journal particularly welcomes papers from newly emerging areas as well as from the traditional strength areas: - New and improved instrumentation and methods - Thermal properties and behavior of materials - Kinetics of thermally stimulated processes