A process for the conversion of light alkanes to aromatic compounds with improved selectivity
AssigneeHaldor TopsøE A/S
InventorFinn JOENSEN
Life of this patent
Estimating the term…
Abstract
In a process for the catalytic conversion of lower hydrocarbons to aromatic compounds comprising benzene, toluene and xylenes, a process stream containing lower hydrocarbons is contacted with a zeolitic catalyst having an MFI framework and containing 0.1 to 10 percent by weight of a zinc compound. The process stream further contains one or more sulfur compounds, especially hydrogen sulfide, for improving the selectivity.
Claims23
A process for the catalytic conversion of gas mixtures, said process comprising:
- contacting a process stream with a zeolitic catalyst, the zeolitic catalyst having an MFI framework and comprising 0.1 to 10 percent by weight of a zinc compound, and
- converting at least part of the process stream to aromatic compounds comprising benzene, toluene and xylenes,
- wherein the process stream comprises lower hydrocarbons and one or more sulfur compounds, wherein the lower hydrocarbons are at least 50% by volume of ethane.
A process for the catalytic conversion of gas mixtures of lower hydrocarbons, which contain at least 50% by volume of ethane, to aromatic compounds comprising benzene, toluene and xylenes, said process comprising the steps of contacting a process stream containing lower hydrocarbons with a zeolitic catalyst having an MFI framework and containing 0.1 to 10 percent by weight of a copper compound, wherein the process stream further contains one or more sulfur compounds.
Dependencies are inferred from the claim text.