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Process for the removal of sodium from di-sulfide oil
US9790175B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9790175-B2 |
| Application number | US-201515121535-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 13, 2015 |
| Priority date | Mar 14, 2014 |
| Publication date | Oct 17, 2017 |
| Grant date | Oct 17, 2017 |
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Abstract
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In the present disclosure there is provided a process for obtaining di-sulfide oil having sodium level below 0.1 ppm wherein a stream comprising di-sulfide oil having sodium level 1 ppm, collected as a waste stream from LPG desulfurization unit, is passed through an alumina bed packed in a column at a pre-determined liquid hourly space velocity (LHSV) and at pre-determined temperature to obtain a treated stream comprising di-sulfide oil having sodium level below 0.1 ppm.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for obtaining di-sulfide oil having sodium level below 0.1 ppm, said process comprising passing a stream comprising di-sulfide oil having sodium level of 1 ppm through an alumina bed packed in a column, at a liquid hourly space velocity (LHSV) ranging from 0.5 to 5.0 hr −1 and at a pre-determined temperature to obtain a treated stream comprising di-sulfide oil having sodium level below 0.1 ppm. 2. The process as claimed in claim 1 , wherein the liquid hourly space velocity (LHSV) ranges from 0.5 to 2 hr −1 . 3. The process as claimed in claim 1 , wherein the liquid hourly space velocity (LHSV) ranges from 1.0 to 1.5 hr −1 . 4. The process as claimed in claim 1 , wherein said pre-determined temperature varies from 10 to 40° C. 5. The process as claimed in claim 1 , wherein said pre-determined temperature varies from 20 to 30° C. 6. The process as claimed in claim 1 , wherein the treated stream comprises di-sulfide oil having sodium level below 0.05 ppm. 7. The process as claimed in claim 1 , wherein the treated stream comprises di-sulfide oil having sodium level below 0.02 ppm. 8. The process as claimed in claim 1 , wherein the treated stream comprises di-sulfide oil having sodium level of 0.01 ppm. 9. The process as claimed in claim 1 , wherein the alumina is characterized by the following properties: average particle size ranging from 0.3 to 0.7 mm; pore volume ranging from 44.1 to 71.9 cm 3 /100 g; surface area ranging from 195 to 331 m 2 /g and density ranging from 543 to 829 kg/m 3 .
Assignees
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Classifications
of an acyclic saturated carbon skeleton · CPC title
- C07C319/30Primary
from the by-products of refining mineral oils · CPC title
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- What does patent US9790175B2 cover?
- In the present disclosure there is provided a process for obtaining di-sulfide oil having sodium level below 0.1 ppm wherein a stream comprising di-sulfide oil having sodium level 1 ppm, collected as a waste stream from LPG desulfurization unit, is passed through an alumina bed packed in a column at a pre-determined liquid hourly space velocity (LHSV) and at pre-determined temperature to obtain…
- Who is the assignee on this patent?
- Reliance Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification C07C319/30. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 17 2017 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).