Residual oil hydroprocessing method
A technology for hydrotreating and residual oil, which is applied in the fields of hydrotreating process, hydrocarbon oil treatment, petroleum industry, etc. It can solve the problems of low catalyst life and poor anti-coking performance, and achieve high demetallization rate, good protection, and easy Controlling the effect of the operating cycle
Active Publication Date: 2010-08-25
CHINA PETROLEUM & CHEM CORP +1
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However, these catalysts are mainly catalysts suitable for the moving bed system of catalyst on-line replacement. Therefore, although these catalysts have high strength, they have low catalyst life and poor anti-coking performance.
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The invention relates to a method for petroleum residue hydrogenation. It comprises mixing raw oil and hydrogen gas, feeding them into hydrogenation protection reactor, carrying out hydrogenation and foreign matter removal reaction through catalyst bed from down to up, the outlet flowout in hydrogenation protection reactor is fed directly into fixed bed refining reactor without separation for hydrogenation and refiness. The hydrogenation protection reactor is packed with two or more than two kinds of catalyst section by section, the catalysts possess the same carrier, and the active metal loading amount on lower part is lower than that on the upper part. The method can process petroleum residue containing high concentration of metal, and is characterized by high metal removal rate, propertemperature, controllable process and long operation period.
Description
technical field The invention belongs to a method for refining hydrocarbon oil in the presence of hydrogen, more specifically, a method for hydrotreating residual oil. Background technique The world's crude oil is gradually getting heavier and worse, but the demand for heavy fuel oil is gradually decreasing, while the demand for light oil is increasing, so it is becoming more and more important to reduce the residual oil. In addition, with the increasingly stringent environmental protection regulations, the requirements for oil refineries to produce clean oil products and achieve clean production are getting higher and stricter. Residue hydrogenation unit has many advantages such as high liquid product yield and environmental friendliness, making it an important technology for clean processing of high-sulfur and high-metal residue in refineries. Hydrogenated residual oil that removes impurities such as sulfur, metals, and nitrogen after hydrogenation of residual oil can be ...
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IPC IPC(8): C10G65/04
Inventor 牛传峰胡大为戴立顺杨清河聂红石亚华
Owner CHINA PETROLEUM & CHEM CORP