Sulfur Recovery Daily Question 2018.8.23
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Question: In what form does sulfur exist in crude oil? Answer: The distribution of sulfur in crude oil generally increases as the boiling range of the fractions rises, with most of it concentrated in heavy fractions and residue. The known forms of sulfur present in crude oil include elemental sulfur, hydrogen sulfide, thiols (RSH), thioethers (RSR), cyclic thioethers, disulfides (RSSR’), thiophene, and its derivatives. Thiethers are sulfur compounds that are present in large quantities in petroleum. Thiethers are neutral liquids that do not corrode metals, but they decompose into reactive sulfides at high temperatures. Disulfides are present in small amounts in petroleum fractions, and they are mostly concentrated in the high-boiling fractions. Disulfides are also neutral and do not react with metals, but they have poor thermal stability; when heated, they decompose to form reactive sulfides, which have a strong corrosive effect on metals.
The known forms of sulfur present in crude oil are: elemental sulfur (S), hydrogen sulfide (H2S), thiol (RSH), thioether (RSR), cyclic thioethers, disulfides (RSSR), thiophene and its derivatives.
The distribution of sulfur in crude oil fractions generally increases as the boiling point of the fractions rises, with the majority being concentrated in heavy fractions and residue. The known forms of sulfur present in crude oil include elemental sulfur, hydrogen sulfide, thiols (RSH), thioethers (RSR), cyclic thioethers, disulfides (RSSR’), thiophene, and its derivatives. Thiethers are sulfur compounds that are present in large quantities in petroleum. Thiethers are neutral liquids that do not corrode metals, but they decompose into reactive sulfides at high temperatures. Disulfides are present in small amounts in petroleum fractions, and they are mostly concentrated in the high-boiling fractions. Dissulfides are also neutral and do not react with metals, but they have poor thermal stability; upon heating, they decompose to yield reactive sulfides. Thiophene and its homologs are relatively stable and constitute the main class of sulfur-containing compounds in petroleum.
The known forms of sulfur present in crude oil include elemental sulfur, hydrogen sulfide, as well as organic sulfur-containing compounds such as thiols, thioethers, disulfides, and thiophenes; there are also other types of sulfur-containing compounds. Apart from elemental sulfur and hydrogen sulfide, the sulfides in petroleum exist in crude oil and its products in the form of organic sulfides; in crude oil, these organic sulfides are mainly composed of thioethers and thiophenes.
The known forms of sulfur present in crude oil include elemental sulfur, hydrogen sulfide, as well as organic sulfur-containing compounds such as thiols, thioethers, disulfides, and thiophenes; there are also other types of sulfur-containing compounds. Apart from elemental sulfur and hydrogen sulfide, the sulfides in petroleum exist in crude oil and its products in the form of organic sulfides; in crude oil, these organic sulfides are mainly composed of thioethers and thiophenes.
In petroleum, sulfides include not only elemental sulfur and hydrogen sulfide； The rest exist in the form of organic sulfides, which are generally mainly thioethers and thiophenes.
Elemental sulfur; compounds: hydrogen sulfide, thiol, thioether, disulfide, thiophene
Elemental sulfur, hydrogen sulfide, thiol (RSH), thioether (RSR), cyclic thioethers, disulfides (RSSR’), thiophene and its homologs.
The distribution of sulfur in crude oil fractions generally increases as the boiling point of the fractions rises, with most of it concentrated in heavy fractions and residue. The known forms of sulfur present in crude oil include elemental sulfur (S), hydrogen sulfide (H2S), thiol (RSH), sulfide (RSR), cyclic sulfides, disulfides (RSSR), thiophene, and its derivatives.