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Catalyst compositions having enhanced acidity for bi-reforming processes

a technology of catalyst composition and bi-reform process, which is applied in the direction of physical/chemical process catalyst, bulk chemical production, metal/metal-oxide/metal-hydroxide catalyst, etc., can solve the problems of catalyst technology insufficient in some processes to provide cost-effective and durable means

Active Publication Date: 2021-07-29
SAUDI ARABIAN OIL CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, one of the main challenges of bi-reforming is to develop catalysts that are resistant to high temperatures and the presence of a more oxidative environment due to steam.
In addition, high temperatures for methane conversion can lead to catalyst deactivation by coking or sintering.
However, present catalyst technology is insufficient in some processes to provide cost-effective and durable means for bi-reforming.

Method used

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  • Catalyst compositions having enhanced acidity for bi-reforming processes
  • Catalyst compositions having enhanced acidity for bi-reforming processes

Examples

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Embodiment Construction

[0017]So that the manner in which the features and advantages of the embodiments of compositions of Group VIB metal modified red mud, in some embodiments including nickel, along with systems and methods for bi-reforming with such compositions and for producing such compositions, may be understood in more detail, a more particular description of the embodiments of the present disclosure briefly summarized previously may be had by reference to the embodiments thereof, which are illustrated in the appended drawings, which form a part of this specification. It is to be noted, however, that the drawings illustrate only various embodiments of the disclosure and are therefore not to be considered limiting of the present disclosure's scope, as it may include other effective embodiments as well.

[0018]As noted, red mud is a caustic waste material generated during alumina extraction from bauxite ore. Red mud includes a mixture of transition metals, for example as listed in Table 1.

TABLE 1Examp...

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Abstract

Methods for bi-reforming over a modified red mud catalyst composition, one method including providing a methane feed in the presence of carbon dioxide and steam to react over the modified red mud catalyst composition at increased temperature and increased pressure to produce synthesis gas comprising H2 and CO, the composition comprising red mud material produced from an alumina extraction process from bauxite ore; nickel oxide, the nickel oxide present at between about 5 wt. % to about 40 wt. % of the modified red mud catalyst composition; and a Periodic Table Group VIB metal oxide, the Group VIB metal oxide present at between about 1 wt. % and about 30 wt. % of the modified red mud catalyst composition.

Description

BACKGROUNDField[0001]Embodiments of the disclosure relate to catalyst compositions for use in reforming processes. In particular, certain embodiments of the disclosure relate to Periodic Table Group VIB metal oxide containing catalyst compositions for and methods of bi-reforming.Description of the Related Art[0002]Bi-reforming is a green method for the production of synthesis gas (syngas, H2 and CO), since it utilizes the two greenhouse gases of CH4 and CO2 as reactants. In addition, it can offer certain advantages over dry reforming and steam reforming with respect to catalyst deactivation and final product ratio. The general chemical equation representing bi-reforming is shown below.3CH4+CO2+2H2O8H2+4CO  Eq. 1[0003]Bi-reforming technology combines dry reforming and steam reforming of methane to produce syngas. Unlike dry reforming, bi-reforming produces a syngas that is both flexible (with variability in the CO2 / H2O ratio) and meets the 2 / 1 H2 / CO ratio required by many higher-valu...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B01J21/16B01J23/883B01J35/02B01J35/10C01B3/40
CPCB01J21/16B01J23/883B01J35/023B01J35/1014C01B2203/1241C01B3/40C01B2203/0233C01B2203/1058C01B2203/1082B01J35/026C01B3/382C01B2203/0238C01B2203/1047C01B2203/1076Y02P20/141Y02P20/52
Inventor ALSOLAMI, BANDAR H.FADHEL, BANDAR A.ALBUALI, MOHAMMED A.BAMAGAIN, RAMI
Owner SAUDI ARABIAN OIL CO