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Desulfurization and sulfone removal using a coker

A technology of coker and oxidation reactor, which is applied in the directions of coking carbonaceous materials, refining with oxygenated compounds, and coke ovens, etc., can solve the problems of complexity and cost increase.

Active Publication Date: 2021-08-31
SAUDI ARABIAN OIL CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, heat treatment requires specialized equipment for harsh conditions (e.g., high temperature and pressure) and requires a large input of energy, leading to increased complexity and cost

Method used

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  • Desulfurization and sulfone removal using a coker
  • Desulfurization and sulfone removal using a coker
  • Desulfurization and sulfone removal using a coker

Examples

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Embodiment

[0083] In one embodiment, oxidative desulfurization is performed on a hydrotreated straight run diesel stream 102 comprising 500 ppmw elemental sulfur, 0.28 wt% organic sulfur having a density of 0.85 kilogram per liter (Kg / l). The oxidized and extracted sulfur compounds are mixed with the resid stream feed stream 136 , the properties of which are shown in Table 1, and the combined stream is supplied to the coker 130 .

[0084] Table 1:

[0085] nature value API proportion 4.60 proportion 1.04 Sulfur content, wt.% 5.42 Nitrogen content, wt.% 0.44 Oxygen content, wt.% 0.10 CCR, wt.% 24.60 C 5 – Asphaltenes, wt.%

23.50 Nickel, ppmw 44.00 Vanadium, ppmw 162.00

[0086] The reaction conditions are as follows: the molar ratio of hydrogen peroxide to sulfur is 4:1. The catalyst is a molybdenum(VI) based catalyst. The reaction time was 30 minutes. The temperature is maintained at about 80°C and the pressure ...

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Abstract

Embodiments provide a method and device for upgrading hydrocarbon feedstock. According to at least one embodiment, the process comprises (a) supplying a hydrocarbon feedstock to an oxidation reactor, in the oxidation reactor, in the presence of a catalyst, under conditions sufficient to selectively oxidize sulfur compounds present in the hydrocarbon feedstock, Oxidizing a hydrocarbon feedstock; (b) separating hydrocarbons and oxidized sulfur compounds by solvent extraction; (c) collecting a resid stream comprising oxidized sulfur compounds; (d) supplying the resid stream to a coker for producing coker gas and solid coke; and (e) recycling at least a portion of the volatile component stream to the oxidation reactor to selectively oxidize sulfur compounds in the volatile component stream, the volatile component stream The recycle portion of includes at least one of light coker gas oil and heavy coker gas oil.

Description

technical field [0001] Embodiments relate to methods and apparatus for desulfurizing hydrocarbon feedstocks. More specifically, embodiments relate to methods and apparatus for desulfurizing a hydrocarbon feedstock by oxidative desulfurization of the hydrocarbon feedstock followed by coker treatment of the oxidized sulfur- and nitrogen-containing species. Background technique [0002] Crude oil is the world's major source of hydrocarbons used as fuel and petrochemical feedstock. At the same time, petroleum and petroleum-based products are also a major source of air and water pollution today. In order to solve the environmental pollution problems caused by petroleum and petroleum products, which are increasingly concerned, many countries have specified the concentration of specific pollutants allowed in petroleum products, especially in petroleum refining operations and fuels (such as the concentration allowed in gasoline fuel) Sulfur and nitrogen content) have implemented s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G53/14C10G55/04C10G21/20C10G21/28C10G21/16C10G25/00C10G27/04C10G21/22C10G21/27C10B55/00
CPCC10G21/16C10G21/20C10G21/22C10G21/27C10G21/28C10G25/00C10G27/04C10G53/14C10G55/04C10G2300/202C10G2300/44C10B55/00
Inventor 奥默·里法·克赛奥卢阿卜杜努尔·布朗斯特凡娜·克雷斯曼
Owner SAUDI ARABIAN OIL CO
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