An Adsorbent Composition and a Process for Preparing the Same
US-2020164340-A1 · May 28, 2020 · US
Process for reducing total acid number of heat transfer fluid
US11053446B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11053446-B2 |
| Application number | US-201816615114-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 18, 2018 |
| Priority date | May 19, 2017 |
| Publication date | Jul 6, 2021 |
| Grant date | Jul 6, 2021 |
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.
The present disclosure relates to a process to reduce total acid number (TAN) of a heat transfer fluid. The process comprises contacting the heat transfer fluid with an adsorbent composition at a temperature in the range of 50° C. to 350° C. and a pressure in the range of 1 bar to 10 bar to obtain a treated heat transfer fluid having total acid number (TAN) in the range of 0.003 to 0.03 and pH in the range of 6 to 7.5, wherein the adsorbent composition is provided in a fixed bed and the heat transfer fluid is passed through the fixed bed comprising the adsorbent composition at a liquid hourly space velocity (LHSV) in the range of 0.5 per hour to 10 per hour.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for reducing total acid number of heat transfer fluid, the process comprising step of contacting said heat transfer fluid with an adsorbent composition to obtain a treated heat transfer fluid having total acid number (TAN) in the range of 0.003 to 0.03 mg KOH/g and pH in the range of 6 to 7.5; wherein said adsorbent composition is provided in a fixed bed and said heat transfer fluid is passed through said fixed bed at a predetermined liquid hourly space velocity (LHSV), at a predetermined temperature and at a predetermined pressure; wherein said adsorbent composition comprises; a layered double hydroxide in an amount in the range of 15 to 70 wt % of the total mass of the composition; alumina in an amount in the range of 30 to 85 wt % of the total mass of the composition; and optionally, activated bauxite in an amount in the range of 15 to 50 wt % of the total mass of the composition. 2. The process as claimed in claim 1 , wherein said predetermined liquid hourly space velocity (LHSV) is in the range of 0.5 per hour to 10 per hour. 3. The process as claimed in claim 1 , wherein said predetermined liquid hourly space velocity (LHSV) is in the range of 1 per hour to 5 per hour. 4. The process as claimed in claim 1 , wherein said predetermined temperature is in the range of 50° C. to 350° C. 5. The process as claimed in claim 1 , wherein said predetermined temperature is in the range of 100° C. to 250° C. 6. The process as claimed in claim 1 , wherein said predetermined pressure is in the range of 1 bar to 10 bar. 7. The process as claimed in claim 1 , wherein said predetermined pressure is in the range of 1 bar to 5 bar. 8. The process as claimed in claim 1 , wherein the weight ratio of the heat transfer fluid to the adsorbent composition is in the range of 5:1 to 30:1. 9. The process as claimed in claim 1 , wherein the weight ratio of the heat transfer fluid to the adsorbent composition is in the range of 10:1 to 20:1.
Assignees
Inventors
Classifications
Used oils · CPC title
- C10G25/006Primary
of waste oils, e.g. PCB's containing oils · CPC title
- C10G25/02Primary
with ion-exchange material · CPC title
Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for (by distillation C10G7/00) · CPC title
Liquid materials · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11053446B2 cover?
- The present disclosure relates to a process to reduce total acid number (TAN) of a heat transfer fluid. The process comprises contacting the heat transfer fluid with an adsorbent composition at a temperature in the range of 50° C. to 350° C. and a pressure in the range of 1 bar to 10 bar to obtain a treated heat transfer fluid having total acid number (TAN) in the range of 0.003 to 0.03 and pH …
- Who is the assignee on this patent?
- Reliance Industries Ltd
- What technology area does this patent fall under?
- Primary CPC classification C10G25/006. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 06 2021 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).