Strong base amines to minimize corrosion in systems prone to form corrosive salts
US-9023772-B2 · May 5, 2015 · US
Strong base amines to minimize corrosion in systems prone to form corrosive salts
US9200219B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9200219-B2 |
| Application number | US-201514688190-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 16, 2015 |
| Priority date | Dec 8, 2010 |
| Publication date | Dec 1, 2015 |
| Grant date | Dec 1, 2015 |
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Abstract
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Corrosion by ammonia/amine salts in hydrocarbon streams such as distillation overhead streams that contain a mineral acid and water can be prevented, avoided or minimized by adding certain strong amines to the streams. The amines have a pKa between about 10.5 to about 12 and include, but are not necessarily limited to, dimethylamine, diethylamine, dipropylamine, diisopropylamine, di-n-butylamine, diisobutylamine, di-sec-butylamine, di-tert-butylamine, pyrrolidine, piperidine, and combinations thereof. If the hydrocarbon stream further includes a nitrogen-containing compound such as ammonia, a tramp and/or a residual amine which can form a corrosive salt with the mineral acid, then the added amine is a stronger base than the tramp or residual amine, if present. The amount of added amine is greater than total amount of nitrogen-containing compound, so that any corrosive salts formed are less corrosive than the salts that would otherwise form from the ammonia and/or tramp amine.
First claim
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What is claimed is: 1. A treated hydrocarbon stream having reduced corrosion capability comprising: at least one hydrocarbon, water, at least one mineral acid, a composition comprising at least one amine having a pKa between 10.5 to 12, where the amine does not contain oxygen and has a normal boiling point greater than 95° C.; and at least one amine salt that is less corrosive as compared to amine salts that would otherwise form without the contacting of the composition co…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C10G75/02Primary
Chemistry & Metallurgy · mapped topic
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- What does patent US9200219B2 cover?
- Corrosion by ammonia/amine salts in hydrocarbon streams such as distillation overhead streams that contain a mineral acid and water can be prevented, avoided or minimized by adding certain strong amines to the streams. The amines have a pKa between about 10.5 to about 12 and include, but are not necessarily limited to, dimethylamine, diethylamine, dipropylamine, diisopropylamine, di-n-butylamin…
- Who is the assignee on this patent?
- Baker Hughes Inc
- What technology area does this patent fall under?
- Primary CPC classification C10G75/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 01 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).