Method of inductively igniting a chemical reaction

A technology of reaction and phase reaction, applied in chemical instruments and methods, chemical methods for reacting gas medium with gas medium, inorganic chemistry, etc., can solve problems such as incomplete reliability

Inactive Publication Date: 2000-08-02
INVISTA TECHNOLOG IES S A R L
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method of igniting the reaction has not proven to be entirely reliable, and it is to this problem that the present invention addresses

Method used

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  • Method of inductively igniting a chemical reaction
  • Method of inductively igniting a chemical reaction
  • Method of inductively igniting a chemical reaction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0024] The present invention also provides another embodiment of the method for ignition catalytic gas phase reaction, which

[0025] The solid-phase catalyst medium is operatively adapted to be heated inductively, further comprising at least one electrically conductive

[0026] receptors to increase sensing efficiency at the onset of the reaction.

Figure overview

[0027] figure 1 is a cross-sectional view of one embodiment of a gas phase chemical reactor suitable for practicing the improved induction ignition method of the present invention.

[0028] figure 2 is a cross-sectional view of another embodiment of a gas phase chemical reactor suitable for practicing the improved induction ignition method of the present invention.

[0029] Modes for Carrying Out the Invention

[0030] The improved method of induction ignition for gas phase reactions of the present invention, how it is introduced into a reactor for gas phase chemical reactions at high temperature, how it ope...

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PUM

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Abstract

An improved method of igniting a catalyzed gas phase chemical reaction involving the act of providing a reactor vessel (10), wherein the gaseous reactant, continuously passing through the reactor, makes contact with a solid phase metallic catalyst media (18), with an inductive coil (14) within the reactor (10) on the inlet side of the catalyst and a porous thermal, spark and radiation barrier (17) between the induction coil (14) and solid catalyst (18). According to the improved method of ignition, the metallic catalyst media (18) is inductively heated in order to ignite the chemical reaction and after ignition the inductive heating is suspended and the exotherm of the chemical reaction is thereafter relied upon to sustain the reaction temperature. Such a reactor and method of operation is particularly useful for continuous production of hydrogen cyanide by the Andrussow process.

Description

field of invention [0001] The present invention relates to a new method for igniting gas-phase chemical reactions in the presence of solid catalysts. More specifically, the present invention relates to, but is not limited to, a continuous flow gas phase reaction in which ammonia reacts with hydrocarbons in the presence of oxygen and a platinum group metal catalyst to form hydrogen cyanide, using induction Loop induction heating of metal catalysts and ignition of exothermic reactions. technical background [0002] The concept of using induction heating to heat catalysts during elevated temperature gas phase chemical reactions is well known in the art. For example, US Patent No. 5,110,996 discloses a process for the production of vinylidene fluoride in which dichlorofluoromethane is reacted with methane in an induction heated reaction tube containing a non-metallic filler and optionally a metal catalyst. [0003] Similarly, PCT patent application WO95 / 21126 discloses the rea...

Claims

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Application Information

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IPC IPC(8): B01J8/04B01J8/02B01J12/00B01J19/08C01C3/02
CPCC01C3/0212B01J2219/32466B01J2219/1946C01C3/0225B01J2208/00415B01J12/007B01J8/0285B01J19/087B01J2208/00407B01J2208/00398
Inventor T·A·科克M·梅迪扎德D·J·比克
Owner INVISTA TECHNOLOG IES S A R L
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