PROCESS AND APPARATUS FOR PRODUCING A REFORMATE BY INTRODUCING n-BUTANE

a technology of reformate and apparatus, which is applied in the direction of catalytic naphtha reforming, naphtha reforming, and thermal naphtha reforming, etc., can solve the problems of reducing the yield of aromatics, reducing the yield of undesirable products, and failing to identify specific components, so as to reduce the production of c3, increase the total aromatic yield, and reduce the vapor pressure of a gasoline product

Inactive Publication Date: 2010-01-28
UOP LLC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]The embodiments disclosed herein can provide a reduction in the production of C3, C4, and / or C5 and an increase in the total aromatic yield by co-feeding n-butane. Thus, the vapor pressure of a gasoline product may be lowered. In addition, co-feeding n-butane may be more advantageous as compared to co-feeding other light hydrocarbons.

Problems solved by technology

However, such co-feeding has failed to identify specific components that can reduce the yield of aromatics and reduce the yield of undesirable products.
Particularly, certain components in the liquefied petroleum gas can cause undesirable increases in undesirable reforming species.

Method used

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[0030]The following examples are intended to further illustrate the disclosed embodiments. These illustrations of the embodiments are not meant to limit the claims to the particular details of these examples. These examples can be based on engineering calculations and actual operating experience with similar processes.

[0031]Tests are conducted by comparing a co-feed of methane (C1) and naphtha, a co-feed of normal butane or n-butane (nC4) and naphtha, and a co-feed of isobutane (iC4) and naphtha, which may be referred to as a co-feed of, respectively, methane, n-butane, and isobutane. Each test is conducted in a pilot plant using the same reforming catalyst made in accordance with US 2006 / 0102520 A1. The pilot plant is operated to minimize catalyst de-activation during the test. The catalyst has a chloride content of about 1% by weight. The feedstock is a commercial naphtha with an endpoint of 160° C. The methane, n-butane, and isobutane are provided as pure components. The feed con...

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Abstract

One exemplary embodiment can be a process for producing a reformate by combining a stream having an effective amount of n-butane and a stream having an effective amount of naphtha for reforming. Generally, the naphtha has not less than about 95%, by weight, of one or more compounds having a boiling point of about 38—about 260° C. as determined by ASTM D86-07. The process can include introducing the combined stream to a reforming reaction zone. Typically, the combined stream has an n-butane:naphtha mass ratio of about 0.10:1.00—about 1.00:1.00.

Description

FIELD OF THE INVENTION[0001]This invention generally relates to a process and an apparatus for producing a reformate.DESCRIPTION OF THE RELATED ART[0002]In naphtha reforming, it is generally desired to decrease the yield of C1-C5 products and increase the yield of aromatics. Co-feeding a liquefied petroleum gas can reduce the C1-C5 product yield and increase aromatics. However, such co-feeding has failed to identify specific components that can reduce the yield of aromatics and reduce the yield of undesirable products. Particularly, certain components in the liquefied petroleum gas can cause undesirable increases in undesirable reforming species. As a consequence, it can be beneficial to provide a co-feed that can increase aromatic yields while reducing both C5 paraffin yield and C3 yield.SUMMARY OF THE INVENTION[0003]One exemplary embodiment can be a process for producing a reformate by combining a stream having an effective amount of n-butane and a stream having an effective amoun...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C10G35/02
CPCC10G35/04
Inventor KRUPA, STEVEN L.LAPINSKI, MARK P.SADLER, CLAYTON C.
Owner UOP LLC
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