Process for the Production of Xylenes
US-2015376086-A1 · Dec 31, 2015 · US
Method and apparatus for obtaining aromatics from diverse feedstock
US8940950B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8940950-B2 |
| Application number | US-201113303855-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 23, 2011 |
| Priority date | Dec 10, 2010 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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The process relates to the use of any naphtha-range stream containing a portion of C8+ aromatics combined with benzene, toluene, and other non-aromatics in the same boiling range to produce toluene. By feeding the A8+ containing stream to a dealkylation/transalkylation/cracking reactor to increase the concentration of toluene in the stream, a more suitable feedstock for the methylation reaction can be produced. This stream can be obtained from a variety of sources, including the pygas stream from a steam cracker, “cat naphtha” from a fluid catalytic cracker, or the heavier portion of reformate.
First claim
Opening claim text (preview).
What is claimed is: 1. A process comprising: (a) treating a first hydrocarbon stream from a reformer in a steam cracker under suitable conditions to produce a second stream comprising C6-C10+ aromatic hydrocarbons, then (b) dealkylation and/or transalkylation and/or cracking (D/T/C) of at least a portion of said second stream by contact with a suitable catalyst under suitable reaction conditions to produce a third stream having an increased benzene and/or toluene content compare…
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Operations & Transport · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US8940950B2 cover?
- The process relates to the use of any naphtha-range stream containing a portion of C8+ aromatics combined with benzene, toluene, and other non-aromatics in the same boiling range to produce toluene. By feeding the A8+ containing stream to a dealkylation/transalkylation/cracking reactor to increase the concentration of toluene in the stream, a more suitable feedstock for the methylation reaction…
- Who is the assignee on this patent?
- Ellrich Justin M, Strack Robert D, Rebeck John W, and 6 more
- What technology area does this patent fall under?
- Primary CPC classification C07C2/864. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).