【Basic Knowledge Activity】Professional “Basic Knowledge” in the petrochemical industry: What are the representative sulfur-containing compounds in petroleum?
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This post was last edited by Adventure Wang on 2016-3-6 at 17:51. What are the representative sulfur-containing compounds in petroleum? The main representative sulfur-containing compounds in petroleum fractions include thiols, thioethers, disulfides, and thiophenes. Correct answer +5 wealth; in-depth discussion +10 wealth ============================================== Discussion on the two-stage catalytic cracking process: http://bbs.hcbbs.com/thread-1560503-1-1.html (Source: Haichuan Chemical Industry Forum) [Petroleum and Chemicals Section] Compilation of professional “basic knowledge” posts (Supported by the main forum; amazing prizes await you!) http://bbs.hcbbs.com/thread-1557057-1-1.html (Source: Haichuan Chemical Industry Forum) This initiative encourages various regions to organize, or individuals to create, posts on basic knowledge topics (the content can be gathered from the Internet or created originally; participation can take place through multiple themes, with no restrictions on the approach used – it could be an explanation of a noun or an introduction to a series of principles). What are some suggestions and methods for getting in touch with cleaners? The regular administrator will reward the content that performs excellently. You will also be rewarded for regions where the activities are more active. (Regions should also carry out consolidation and optimization based on the amount of such content available in their area.) ———————————————— The second phase of the campaign runs from February 20, 2016, to the end of June 2016; at least 50 award vouchers are available for you to claim (mugs, power banks, USB drives, and other prizes or campaign benefits). Prizes are awarded at any time based on performance, and additional rewards are given as well at any time depending on performance. (12,000 activity points and rewards await the regions that perform well)
Sulfides (corrosive or non-corrosive to metals): Inactive sulfur: thioethers, disulfides, thiophenes. (Corrosion to metals?) Sulfur and hydrogen sulfide: mostly products of the decomposition of other sulfides ； Thiols (RSH): present in small amounts in petroleum ； It has a boiling point lower than that of the corresponding alcohols, and is commonly found in low-boiling fractions (gasoline, kerosene fractions) ； Insoluble in water, with a distinctive odor (methanethiol) ； Upon heating, it decomposes to produce thioethers and hydrogen sulfide. Active sulfur: elemental sulfur, H2S, thiols. Thiethers (RSR’): They are present in large quantities in petroleum, accounting for 50–70% of the sulfur content in light and medium fractions. There are various forms of these compounds; the R group can be an alkyl group, a cycloalkyl group, or an aromatic group ； It is a neutral liquid that has no effect on metals. Generally, the content of disulfides in petroleum is significantly lower than that of thioethers, accounting for no more than 10% of all sulfur-containing compounds; they are mainly found in the lighter fractions and have properties similar to those of thioethers. Thiophene compounds in crude oil generally account for more than half of its sulfur-containing compounds. Thiophene compounds are primarily found in the medium-boiling fractions, especially in the high-boiling fractions.
What are the representative sulfur-containing compounds in petroleum? Sulfides (do they cause corrosion to metals?): Inactive sulfur: thioethers, disulfides, thiophenes. (Corrosion to metals?) Sulfur and hydrogen sulfide: mostly products of the decomposition of other sulfides ； Thiols (RSH): present in small amounts in petroleum ； It has a boiling point lower than that of the corresponding alcohols, and is commonly found in low-boiling fractions (gasoline, kerosene fractions) ； Insoluble in water, with a distinctive odor (methanethiol) ； Upon heating, it decomposes to produce thioethers and hydrogen sulfide. Active sulfur: elemental sulfur, H2S, thiols. Thiethers (RSR’): They are present in large quantities in petroleum, accounting for 50–70% of the sulfur content in light and medium fractions. There are various forms of these compounds; the R group can be an alkyl group, a cycloalkyl group, or an aromatic group ； It is a neutral liquid that has no effect on metals. Generally, the content of disulfides in petroleum is significantly lower than that of thioethers, accounting for no more than 10% of all sulfur-containing compounds; they are mainly found in the lighter fractions and have properties similar to those of thioethers. Thiophene compounds in crude oil generally account for more than half of its sulfur-containing compounds. Thiophene compounds are primarily found in the medium-boiling fractions, especially in the high-boiling fractions.
What are the representative sulfur-containing compounds in petroleum? Sulfides (whether they cause corrosion to metals): inert sulfur compounds such as thioethers, disulfides, and thiophenes.
The representative sulfur-containing compounds in petroleum fractions include thiols, thioethers, disulfides, and thiophenes, among others.
Representative sulfur-containing compounds in petroleum include hydrogen sulfide, thiols, thioethers, cyclic thioethers, disulfides, thiophenes, etc.
Included: hydrogen sulfide, iron sulfide, ferric sulfate, sulfurous acid or sulfuric acid....
Inactive sulfur: thioethers, disulfides, thiophenes. Active sulfur: elemental sulfur, H2S, thiols.
Hydrogen sulfide～thiols～thiethers～thiophenes, etc