Method of enhancing an aromatization catalyst
First Claim
1. A hydrocarbon aromatization process comprising:
- adding an oxygenate, to a hydrocarbon stream to produce an enhanced hydrocarbon stream containing from about 2 ppm to 12 ppm water;
contacting the enhanced hydrocarbon stream with an aromatization catalyst in a reaction zone, wherein the catalyst comprises a non-acidic L-zeolite support, platinum, and one or more halides; and
recovering an effluent comprising aromatic hydrocarbons.
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Abstract
A hydrocarbon aromatization process comprising adding a nitrogenate, an oxygenate, or both to a hydrocarbon stream to produce an enhanced hydrocarbon stream, and contacting the enhanced hydrocarbon stream with an aromatization catalyst, thereby producing an aromatization reactor effluent comprising aromatic hydrocarbons, wherein the catalyst comprises a non-acidic zeolite support, a group VIII metal, and one or more halides. Also disclosed is a hydrocarbon aromatization process comprising monitoring the presence of an oxygenate, a nitrogenate, or both in an aromatization reactor, monitoring at least one process parameter that indicates the activity of the aromatization catalyst, modifying the amount of the oxygenate, the nitrogenate, or both in the aromatization reactor, thereby affecting the parameter.
100 Citations
20 Claims
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1. A hydrocarbon aromatization process comprising:
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adding an oxygenate, to a hydrocarbon stream to produce an enhanced hydrocarbon stream containing from about 2 ppm to 12 ppm water; contacting the enhanced hydrocarbon stream with an aromatization catalyst in a reaction zone, wherein the catalyst comprises a non-acidic L-zeolite support, platinum, and one or more halides; and recovering an effluent comprising aromatic hydrocarbons. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A hydrocarbon aromatization process comprising:
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adding an oxygenate to a hydrocarbon stream to produce an enhanced hydrocarbon stream containing from about 2 ppm to 12 ppm water, to a hydrogen recycle stream to produce an enhanced recycle stream containing from about 2 ppm to 12 ppm water, or to both; contacting the enhanced hydrocarbon stream alone or in combination with the enhanced recycle stream with an aromatization catalyst, wherein the catalyst comprises a non-acidic L-zeolite support, platinum, and one or more halides; recovering an effluent comprising aromatic hydrocarbons; and controlling the addition of the oxygenate to the hydrocarbon stream, the recycle stream, or both in order to maintain one or more process parameters within a desired range. - View Dependent Claims (13, 14, 15)
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16. A hydrocarbon aromatization process comprising:
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monitoring the presence of an oxygenate in the aromatization process; monitoring at least one parameter of the aromatization process that indicates the activity of an aromatization catalyst, wherein the catalyst comprises a non-acidic L-zeolite support, platinum, and one or more halides; and modifying the amount of the oxygenate in the aromatization process to maintain the water content in the reaction zone from about 2 ppm to about 12 ppm, thereby affecting the parameter. - View Dependent Claims (17, 18, 19, 20)
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Specification