Method for detecting corrosive sulfur content in crude oil or fraction oil

A technology of corrosive sulfur and determination method, applied in chemical method analysis, measuring device, analysis material, etc., can solve the problem of inability to measure the content of corrosive sulfur, and achieve the effect of increasing comparability
CN1715911AActive Publication Date: 2006-01-04CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2006-01-04

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Abstract

The method of detecting corrosive sulfur content in crude oil or fraction oil includes making the crude oil or fraction oil react fully with metal powder at 200-400 deg c under stirring inside sealed container; and calculating the difference of sulfur content before reaction and that after reaction to determine the content of corrosive sulfur in crude oil or fraction oil. The metal powder is selected copper powder, carbon steel powder, iron powder or zinc powder. The method can determine corrosive sulfur content in crude oil or fraction oil effectively and has comparable data.
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Description

technical field

[0001] The invention relates to a method for determining the content of corrosive sulfur in crude oil or distillate oil, specifically, a method for measuring the content of corrosive sulfur in crude oil or distillate oil by reacting metal powder with sulfur compounds. Background technique

[0002] Sulfur in crude oil or petroleum fractions not only causes environmental pollution during processing, but also severely corrodes processing equipment. In the long-term refinery practice, scientific workers have accumulated rich anti-corrosion experience, but in terms of sulfur corrosion prediction, they still have not found a simple and effective measurement method.

[0003] At present, the widely used sulfur corrosion prediction method is to measure the total sulfur content in oil samples. However, the total sulfur content cannot be fully correlated with the corrosion rate of the unit. Some crude oils with low sulfur content are more corrosive than some crude oil...

Claims

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