Conversion of methane to higher hydrocarbon

A technology for methane, hydrocarbon feedstocks, used in chemical instruments and methods, chemical/physical processes, condensation with dehydrogenated hydrocarbons to produce hydrocarbons, etc., can solve the problem of not being able to reliably provide continuous control of the location and dissipation of heat generation and methods, reducing the efficiency of the reactor system, inefficiency, etc.

Active Publication Date: 2012-07-18
EXXONMOBIL CHEM PAT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Detours some of the feedstock around the regeneration system on the reactor, which reduces the potential efficiency of the reactor system and can result in an enlarged heat field and an excessively long feedstock shift reaction
[0019] All of these prior art disclosed processes, methods and devices are not suitable for continuous efficient operation at the necessary high temperatures due to the complexity and thermal aging of the equipment
Also, known methods do not reliably provide methods and means for continuously controlling the location and dissipation of heat generation, which results in hot spots, unwanted heat movement, and / or inefficient processes

Method used

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  • Conversion of methane to higher hydrocarbon
  • Conversion of methane to higher hydrocarbon
  • Conversion of methane to higher hydrocarbon

Examples

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Embodiment 1

[0097] The following example is intended to illustrate an exemplary embodiment and method only and is not meant to limit the scope of the invention. Methane is converted to acetylene in a pair of reactor systems, each according to a brief description Figure 5 installed, suitably valved, so that one reactor system performs the regeneration step while the other reactor system performs the pyrolysis step. Some embodiments may also include more than one pair of more reactor systems, eg, multiple reactor systems, each operating in a staged timed arrangement, so that the overall process is substantially continuous. The reactor system includes at least a first reactor / recoverer (102), a mixer or mixing zone (109), and a second reactor / reforming zone (101).

[0098] Both the reforming (101) and recycling (102) reactor zones consist of extruded ceramic honeycomb monoliths that are three-dimensionally stacked to fill the reactor zone volume. The entire reactor system is about 10 ft i...

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Abstract

The present invention provides a process for the manufacture of acetylene and other higher hydrocarbons from methane feed using a reverse-flow reactor system, wherein the reactor system includes (i) a first reactor and (ii) a second reactor, the first and second reactors oriented in a series relationship with respect to each other, the process comprising supplying each of first and second reactant through separate channels in the first reactor bed of a reverse-flow reactor such that both of the first and second reactants serve to quench the first reactor bed, without the first and second reactants substantially reacting with each other until reaching the core of the reactor system.

Description

[0001] Relationship to Related Applications [0002] This application claims the benefit of and priority to U.S. Provisional Application No. 60 / 753,961, filed December 23, 2005, and entitled "Controlled Combustion for Regenerative Reactors," filed December 15, 2006 Interest in related U.S. Non-Provisional Application No. (serial number not yet assigned), as assignee Family No. P2005J047-US2. technical field [0003] The present invention relates to a method for preparing acetylene from methane. The invention still further relates to regeneration reactors. More particularly, the present invention relates to an improved process and apparatus for the production of acetylene from a methane feedstock by a unique and thermally efficient method of controlling combustion for thermal regeneration of a countercurrent regenerative reactor. Background technique [0004] Acetylene (acetylene or ethyne, HC≡CH) has long been recognized as one of the few compounds that can be directly pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/02C07C2/76B01J8/04
Inventor F·赫什考维茨J·S·布坎南H·W·戴克曼J·W·弗雷德里克
Owner EXXONMOBIL CHEM PAT INC
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