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US 12,553,002 B2Granted
Process to convert light alkanes to diesel
AssigneePhillips 66 Company
InventorsJianhua Yao, Kening Gong, Huanxin Gao, Jiangang Lyu, Feng Xu, Wennian Wang, Ming Xu, Yilun Wei
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Abstract
Various embodiments of a process for converting light alkanes to diesel are disclosed. In general, the process includes reacting a feed rich in one or more light alkanes with an aromatization catalyst to convert the light alkanes to aromatic hydrocarbons, reacting the aromatic hydrocarbons with a hydroalkylation catalyst to convert the aromatic hydrocarbons into diesel range hydrocarbons, and hydrogenating the diesel range hydrocarbons to produce a diesel product.
Claims20
A method comprising:
- reacting a feed including one or more C1-C5 alkanes with an aromatization catalyst to convert the one or more C1-C5 alkanes to aromatic hydrocarbons and produce a first effluent including the aromatic hydrocarbons;
- separating the first effluent into a gas product that is at least 50 wt % hydrogen and C1-C4 hydrocarbons and a first liquid product that is at least 50 wt % gasoline range hydrocarbons and includes the aromatic hydrocarbons;
- reacting the first liquid product with a hydroalkylation catalyst to convert the aromatic hydrocarbons into diesel range hydrocarbons and produce a second effluent;
- separating the second effluent into a second liquid product that is at least 50 wt % gasoline range hydrocarbons and a third liquid product that is at least 50 wt % diesel range hydrocarbons;
- and
- hydrogenating the third liquid product to produce a diesel product having a cetane number of at least 35.
3 more elements
A method comprising:
- reacting a feed including one or more C1-C5 alkanes with an aromatization catalyst to convert the one or more C1-C5 alkanes to aromatic hydrocarbons and produce a first effluent including the aromatic hydrocarbons, the feed including at least 50 wt % C1-C5 hydrocarbons;
- separating the first effluent into a gas product that is at least 50 wt % hydrogen and C1-C4 hydrocarbons and a first liquid product that is at least 50 wt % gasoline range hydrocarbons and includes the aromatic hydrocarbons;
- reacting the first liquid product with a hydroalkylation catalyst to convert the aromatic hydrocarbons into diesel range hydrocarbons and produce a second effluent;
- separating the second effluent into a second liquid product that is at least 50 wt % gasoline range hydrocarbons and a third liquid product that is at least 50 wt % diesel range hydrocarbons;
- and
- hydrogenating the third liquid product to produce a diesel product.
3 more elements
Dependencies are inferred from the claim text.