Aromatization of light hydrocarbons using metal-doped zeolite catalysts with enhanced mesoporosity
AssigneesSaudi Arabian Oil Company, King Fahd University of Petroleum and Minerals
InventorsYaming Jin, Ziyauddin S. Qureshi, Abdullah M. Aitani, Omer Refa Koseoglu, Mohammad Naseem Akhtar, Hassan Saeed Al-Awad Alasiri
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Abstract
According to embodiments, a process for aromatizing hydrocarbons may include contacting the hydrocarbons with a zinc- or gallium-doped ZSM-5 catalyst having a mesopore volume of greater than 0.09 cm3/g. Contacting the hydrocarbons with the catalyst causes a least a portion of the hydrocarbons to undergo chemical reactions to form aromatic hydrocarbons.
Claims20
A process for aromatizing hydrocarbons comprising:
- contacting the hydrocarbons with a catalyst comprising a zinc- or gallium-doped ZSM-5 catalyst having a mesopore volume of greater than 0.09 cm3/g, wherein contacting the hydrocarbons with the catalyst causes a least a portion of the hydrocarbons to undergo chemical reactions to form aromatic hydrocarbons.
A process of forming a catalyst for aromatizing hydrocarbons, the process comprising:
- enhancing a mesoporosity of a zeolite support by a base-leaching treatment, an acid-leaching treatment, or both to form a zeolite support having enhanced mesoporosity;
- mixing the zeolite support having enhanced mesoporosity with a solution containing zinc or gallium to disperse the zinc or gallium on the zeolite support having enhanced mesoporosity;
- and
- calcining the zeolite support having enhanced mesoporosity with zinc or gallium dispersed thereon to form a zinc- or gallium-doped zeolite catalyst having a mesopore volume of greater than 0.09 cm3/g.
Dependencies are inferred from the claim text.