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Processes and apparatuses for methylation of aromatics in an aromatics complex

A methylation and equipment technology, applied in the field of aromatics methylation and equipment in aromatics complexes, can solve problems such as poor catalyst stability, poor utilization rate, low per-pass conversion rate of aromatics, etc.

Active Publication Date: 2020-06-16
UOP LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Toluene methylation operated in the gas phase has poor feedstock (especially oxygenate) utilization, low per-pass conversion of aromatics, and poor catalyst stability over time periods of hours, days, and weeks, Hence the need for frequent regeneration

Method used

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  • Processes and apparatuses for methylation of aromatics in an aromatics complex
  • Processes and apparatuses for methylation of aromatics in an aromatics complex

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Embodiment Construction

[0023] The following detailed description is merely exemplary in nature and is not intended to limit the application and uses of the described embodiments. Furthermore, there is no intention to be bound by any theory presented in the preceding background or the following detailed description.

[0024] reference attached figure 1 A description of the device of the invention is presented. figure 1 is a simplified diagram of a preferred embodiment of the invention and is not intended to unduly limit the generally broad scope of the description provided herein and the claims that follow. Certain hardware, such as valves, pumps, compressors, heat exchangers, instrumentation and controls, have been omitted since this hardware is not necessary for a clear understanding of the invention. The use and application of this hardware is well within the skill of the art.

[0025] Various embodiments described herein relate to methods and apparatus for methylating toluene and / or benzene ...

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Abstract

This present disclosure relates to processes and apparatuses for methylation of aromatics in an aromatics complex for producing a xylene isomer product. More specifically, the present disclosure relates to a process for producing para-xylene by the selective methylation of toluene and / or the selective methylation of benzene in an aromatics complex.

Description

[0001] priority statement [0002] This patent application claims priority to U.S. Patent Application No. 15 / 809,781, filed November 10, 2017, the contents of which reference applications are hereby incorporated by reference in their entirety. technical field [0003] The present disclosure relates to methods and apparatus for methylating aromatics in an aromatics complex for producing xylene isomer products. More specifically, the present disclosure relates to a process for producing para-xylene by selective methylation of toluene and / or benzene in an aromatics complex. Background technique [0004] Xylene isomers are produced in large quantities from petroleum as feedstock for use in a variety of important chemicals. The most important xylene isomer is para-xylene, the main raw material for polyester, which continues to enjoy high growth rates due to large base demand. Ortho-xylene is used to produce phthalic anhydride, which serves a high-volume but relatively mature m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C2/86C07C15/08C07C15/16
CPCC07C2/864C07C6/126B01J19/0006B01J2219/00051B01J2219/00105B01J2219/00162C07C15/08C07C2/64B01J2219/24B01J19/24C07C6/06
Inventor 约瑟夫·A·蒙塔尔巴诺R·詹森·L·诺伊维罗妮卡·G·迪克安东·N·姆利纳尔罗伯特·E·蔡
Owner UOP LLC