Reactor components
US-9707536-B2 · Jul 18, 2017 · US
Pinned furnace tubes
US9540570B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9540570-B2 |
| Application number | US-201514612509-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 3, 2015 |
| Priority date | Feb 21, 2014 |
| Publication date | Jan 10, 2017 |
| Grant date | Jan 10, 2017 |
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- Title
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Abstract
Official abstract text for this publication.
In an embodiment of the invention, furnace tubes for cracking hydrocarbons having a longitudinal array of pins having i) a maximum height from 0.5-1.3 cm; ii) a contact surface with the tube, having an area from 0.1%-10% of the tube external surface area iii) a uniform cross section along the length of the pin. (i.e. they are not tapered); and iv) a length to diameter ratio from 1.5:1 to 0.5:1 have an improved heat transfer over bare fins and reduced stress relative to a fined tube.
First claim
Opening claim text (preview).
What is claimed is: 1. A tube for use in the radiant section of a furnace for cracking hydrocarbons to produce olefins having on its exterior surface a series of pins in one or more linear arrays parallel to the longitudinal axis of the tube, said pins having: i) a maximum height from 0.8 cm to 1 cm (paragraph 43); ii) a contact surface with the tube, having an area from 0.1%-10% of the tube external surface area; iii) a uniform cross section along the length of the pin; iv)…
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Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Operations & Transport · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US9540570B2 cover?
- In an embodiment of the invention, furnace tubes for cracking hydrocarbons having a longitudinal array of pins having i) a maximum height from 0.5-1.3 cm; ii) a contact surface with the tube, having an area from 0.1%-10% of the tube external surface area iii) a uniform cross section along the length of the pin. (i.e. they are not tapered); and iv) a length to diameter ratio from 1.5:1 to 0.5:1 …
- Who is the assignee on this patent?
- Nova Chemicals International Sa
- What technology area does this patent fall under?
- Primary CPC classification C10G9/203. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 10 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).