Process for the aromatization of a methane-containing gas stream using zirconium hydrogen acceptor particles
US-2016368836-A1 · Dec 22, 2016 · US
Method for producing aromatic hydrocarbon and apparatus for producing aromatic hydrocarbon
US9358536B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9358536-B2 |
| Application number | US-201013146272-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 15, 2010 |
| Priority date | Feb 12, 2009 |
| Publication date | Jun 7, 2016 |
| Grant date | Jun 7, 2016 |
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Abstract
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To economically regenerate a catalyst and to produce aromatic hydrocarbon stably for a long time maintaining a high aromatic hydrocarbon yield when the aromatic hydrocarbon is produced upon making a contact reaction between lower hydrocarbon and the catalyst. A method of producing aromatic hydrocarbon and an apparatus for producing aromatic hydrocarbon by repeating a reaction step for obtaining aromatic hydrocarbon upon making a contact reaction between lower hydrocarbon and a catalyst and a regeneration step for regenerating the catalyst used in the reaction step. Off-gas which is gas obtained by removing aromatic hydrocarbon produced in the reaction step from discharge gas passing through the reaction step is used as a regeneration gas in the regeneration step.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of producing aromatic hydrocarbon, comprising: alternately repeating a reaction step for obtaining aromatic hydrocarbon upon making a contact reaction between a lower hydrocarbon comprising methane, ethane, or propane and a catalyst, and a regeneration step for regenerating the catalyst used in the reaction step, wherein off-gas, which consists of only gas obtained by removing aromatic hydrocarbon produced in the reaction step from discharge gas passing through the reaction step, is used as a regeneration gas in the regeneration step, and wherein a hydrogen concentration in the off-gas is in a range of 20 to 25 vol %. 2. The method of producing aromatic hydrocarbon as claimed in claim 1 , wherein the reaction step is changed over into the regeneration step, based on the hydrogen concentration in the off-gas. 3. The method for producing aromatic hydrocarbon as claimed in claim 1 , wherein after the reaction step, the discharge gas is discharged from a reactor and supplied to an aromatic hydrocarbon separation apparatus that separates the aromatic hydrocarbon produced in the reactor from the discharge gas to obtain the off-gas, and the off-gas is stored in an off-gas tank that supplies the off-gas, as it is, to the reactor to initiate the regeneration step.
Assignees
Inventors
Classifications
- B01J38/10Primary
using elemental hydrogen · CPC title
with catalysts containing platinum group metals or compounds thereof · CPC title
using catalysts, e.g. selective catalysts · CPC title
by condensation of hydrocarbons with partial elimination of hydrogen · CPC title
Recycling of catalysts · CPC title
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- What does patent US9358536B2 cover?
- To economically regenerate a catalyst and to produce aromatic hydrocarbon stably for a long time maintaining a high aromatic hydrocarbon yield when the aromatic hydrocarbon is produced upon making a contact reaction between lower hydrocarbon and the catalyst. A method of producing aromatic hydrocarbon and an apparatus for producing aromatic hydrocarbon by repeating a reaction step for obt…
- Who is the assignee on this patent?
- Ogawa Yuji, Ma Hongtao, Meidensha Electric Mfg Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B01J38/10. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jun 07 2016 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).