Method for thermally after-burning waste gases from acrolein and hydrocyanic acid production

US9927120B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9927120-B2
Application numberUS-201113996585-A
CountryUS
Kind codeB2
Filing dateDec 19, 2011
Priority dateDec 22, 2010
Publication dateMar 27, 2018
Grant dateMar 27, 2018

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

The invention relates to a method for thermally after-burning the waste gas flows developing during the production of acrolein in a gas phase process and for thermally after-burning the waste gas flows developing during the production of hydrocyanic acid in a gas phase process, characterized in that the waste gas flows from the production of acrolein and the waste gas flows from the production of hydrocyanic acid are supplied to a joint thermal after-burning process.

First claim

Opening claim text (preview).

The invention claimed is: 1. A process for thermal afterburning, comprising forming an exhaust gas stream in the production of acrolein in a gas-phase process, wherein the exhaust gas stream arising in the production of acrolein in a gas-phase process comprises an exhaust gas stream from a process of gas-phase oxidation of propylene to acrolein, forming an exhaust gas stream in the production of prussic acid in a gas-phase process, wherein the exhaust gas stream arising in the production of prussic acid in a gas-phase process comprises an exhaust gas stream from an Andrussow process or from a BMA—prussic acid from methane and ammonia—process; feeding the exhaust gas stream from the production of acrolein and the exhaust gas stream from the production of prussic acid to a shared thermal afterburning; and burning the exhaust gas stream from the production of acrolein and the exhaust gas stream from the production of prussic acid in the shared thermal afterburning. 2. The process of claim 1 , wherein the production of acrolein and the production of prussic acid take place in parallel with respect to time, and the exhaust gas stream from the production of acrolein and the exhaust gas stream from the production of prussic acid arise in parallel with respect to time. 3. The process of claim 1 , wherein the production of acrolein and the production of prussic acid take place at one location, and the exhaust gas stream from the production of acrolein and the exhaust gas stream from the production of prussic acid arise at one location. 4. The process of claim 1 , wherein the shared thermal afterburning comprises an integrated process for chemical synthesis of methionine or methionine hydroxy analogue (MHA).

Assignees

Inventors

Classifications

  • using gaseous or liquid fuel · CPC title

  • Organic compounds not provided for in groups B01D2257/00 - B01D2257/602 · CPC title

  • B01D53/005Primary

    by heat treatment · CPC title

  • Cyanides, e.g. hydrogen cyanide (HCH) · CPC title

  • Carbon monoxide · CPC title

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What does patent US9927120B2 cover?
The invention relates to a method for thermally after-burning the waste gas flows developing during the production of acrolein in a gas phase process and for thermally after-burning the waste gas flows developing during the production of hydrocyanic acid in a gas phase process, characterized in that the waste gas flows from the production of acrolein and the waste gas flows from the production …
Who is the assignee on this patent?
Finkeldei Caspar Heinrich, Zacchi Pablo, Koerfer Martin, and 1 more
What technology area does this patent fall under?
Primary CPC classification B01D53/005. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Mar 27 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).