Process For Preparing Olefins By Thermal Steamcracking
US-2015315484-A1 · Nov 5, 2015 · US
Method for quenching pyrolysis product
US10889764B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10889764-B2 |
| Application number | US-201916645647-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 2, 2019 |
| Priority date | Aug 23, 2018 |
| Publication date | Jan 12, 2021 |
| Grant date | Jan 12, 2021 |
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- Title
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Abstract
Official abstract text for this publication.
A method for quenching a pyrolysis product, including: supplying a discharge stream from a liquid decomposition furnace to a first quench tower; supplying an upper discharge stream from the first quench tower to a second quench tower; supplying a discharge stream from a first gas decomposition furnace to the second quench tower; and supplying a discharge stream from a second gas decomposition furnace to the second quench tower.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for quenching a pyrolysis product, the method comprising: supplying a discharge stream from a liquid decomposition furnace to a first quench tower; supplying an upper discharge stream from the first quench tower to a second quench tower; supplying a discharge stream from a first gas decomposition furnace to the second quench tower; and supplying a discharge stream from a second gas decomposition furnace to the second quench tower, wherein the discharge stream from the first gas decomposition furnace and the discharge stream from the second gas decomposition furnace join the upper discharge stream from the first quench tower, respectively, and are supplied together to the second quench tower. 2. The method of claim 1 , wherein a feedstock supplied to the liquid decomposition furnace includes naphtha. 3. The method of claim 1 , wherein a feedstock supplied to the first gas decomposition furnace includes one or more selected from the group consisting of recycled C2 hydrocarbon compounds and recycled C3 hydrocarbon compounds. 4. The method of claim 1 , wherein a feedstock supplied to the second gas decomposition furnace includes hydrocarbon compounds having 2 to 4 carbon atoms. 5. The method of claim 4 , wherein the feedstock supplied to the second gas decomposition furnace is one or more selected from the group consisting of propane and butane. 6. The method of claim 1 , wherein an upper discharge stream from the second quench tower is supplied to a compressor. 7. The method of claim 6 , wherein a differential pressure between a pressure of the discharge stream from the liquid decomposition furnace at the outlet of the liquid decomposition furnace and a pressure of the upper discharge stream from the second quench tower at the inlet of the compressor is 0.28 bar or less. 8. The method of claim 6 , wherein a differential pressure between a pressure of the discharge stream from the first gas decomposition furnace at the outlet of the first gas decomposition furnace and a pressure of the upper discharge stream from the second quench tower at the inlet of the compressor is 0.26 bar or less. 9. The method of claim 6 , wherein a differential pressure between a pressure of the discharge stream from the second gas decomposition furnace at the outlet of the second gas decomposition furnace and a pressure of the upper discharge stream from the second quench tower at the inlet of the compressor is 0.26 bar or less.
Assignees
Inventors
Classifications
Recycling aspects · CPC title
C2-C4 olefins · CPC title
Heavy gasoline or naphtha having a boiling range of about 100 - 180 °C · CPC title
- C10G9/002Primary
Cooling of cracked gases · CPC title
C2-C4 olefins · CPC title
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- What does patent US10889764B2 cover?
- A method for quenching a pyrolysis product, including: supplying a discharge stream from a liquid decomposition furnace to a first quench tower; supplying an upper discharge stream from the first quench tower to a second quench tower; supplying a discharge stream from a first gas decomposition furnace to the second quench tower; and supplying a discharge stream from a second gas decomposition f…
- Who is the assignee on this patent?
- Lg Chemical Ltd
- What technology area does this patent fall under?
- Primary CPC classification C10G9/002. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 12 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).