Method for producing gasoline alternative fuel and gasoline alternative fuel
US-2024043753-A1 · Feb 8, 2024 · US
Process for the preparation of olefins
US9108892B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9108892-B2 |
| Application number | US-201213597479-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 29, 2012 |
| Priority date | Aug 30, 2011 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Process for the preparation of olefins comprising reacting an oxygenate and/or olefinic feed in a reactor in the presence of a molecular sieve catalyst to form a mixture which comprises olefins and at least partially coked catalyst; separating olefins and at least partially coked catalyst as obtained; passing the at least partially coked catalyst to a regenerator; introducing into the regenerator an oxygen-containing gas to regenerate the at least partially coked catalyst, thereby producing a gaseous mixture and at least partially regenerated catalyst; analyzing the at least partially regenerated catalyst to control the burning rate of the coke present on the at least partially coked catalyst in the regenerator by adjusting one or more conditions of the regeneration of the at least partially coked catalyst on the basis of the analysis of the at least partially regenerated catalyst; and passing the at least partially regenerated catalyst to the reactor.
First claim
Opening claim text (preview).
What is claimed is: 1. Process for the preparation of olefins, which process comprises the steps of: (a) reacting an oxygenate and/or olefinic feed in a reactor in the presence of a molecular sieve catalyst to form a mixture which comprises olefins and at least partially coked catalyst; (b) separating olefins and at least partially coked catalyst as obtained in step (a); (c) recovering olefins obtained in step (b); (d) passing at least partially coked catalyst as obtained in…
Assignees
Inventors
Classifications
Operations & Transport · mapped topic
Chemistry & Metallurgy · mapped topic
Operations & Transport · mapped topic
- C07C1/20Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9108892B2 cover?
- Process for the preparation of olefins comprising reacting an oxygenate and/or olefinic feed in a reactor in the presence of a molecular sieve catalyst to form a mixture which comprises olefins and at least partially coked catalyst; separating olefins and at least partially coked catalyst as obtained; passing the at least partially coked catalyst to a regenerator; introducing into the regenerat…
- Who is the assignee on this patent?
- Quevedo Enriquez Jose Atilio, Shell Oil Co
- What technology area does this patent fall under?
- Primary CPC classification C07C1/20. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 18 2015 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).