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Preparation method of marine fuel oil

A technology for fuel oil and marine use, which is applied in the field of preparation of marine fuel oil, and can solve problems such as short operation period

Pending Publication Date: 2022-06-03
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the operation period of this method is short, generally no more than 1 year

Method used

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  • Preparation method of marine fuel oil
  • Preparation method of marine fuel oil
  • Preparation method of marine fuel oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Both Example 1 and Example 2 were used figure 1 shown process flow. see figure 1 As shown, after a part of the raw oil such as vacuum residue is mixed with the hydrocracking catalyst through the stirring device 10, it is mixed with the remaining part of the oil vacuum residue and the hydrogen delivered by the new hydrogen compressor 15 through the heater 14. After preheating, they enter the paddle bed hydrocracking reactor R11 and the paddle bed hydrocracking reactor R2 2 in turn for hydrocracking, and the hydrocracked products enter the gas-liquid separator S1 3 for gas-liquid separation, wherein the obtained The gas is mixed with new hydrogen through the circulating hydrogen compressor 13 and enters the paddle bed hydrocracking reactor R11 and paddle bed hydrocracking reactor R2 2 again; a part of the obtained liquid product is mixed with fresh raw materials as circulating oil and then enters the paddle state. Bed hydrocracking reactor R1 1, paddle bed hydrocracking...

Embodiment 2

[0063] The difference between this example and Example 1 is that the raw material oil A is replaced by the raw material oil B, the main properties of the raw material oil B are listed in Table 1, the slurry bed hydrocracking catalyst is added in an amount of 500 μg / g, and the specific technological process The same as in Example 1, with the conditions changed as shown in Tables 3 and 4.

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Abstract

The invention relates to a preparation method of marine fuel oil. A combined process of inferior heavy oil hydrocracking and liquid-phase hydrotreating is adopted. Raw oil and a slurry reactor hydrocracking catalyst are mixed and then subjected to hydrocracking together with hydrogen through the R1 and the R2, a product enters the gas-liquid separator S1 for gas-liquid separation, and the obtained gas is circulated back to the compressor and mixed with new hydrogen to enter the R1 and the R2 again; one part of the obtained liquid product serves as circulating oil to be mixed with fresh raw materials and then enters the R1 and R2, the other part of the liquid product enters the R3 and / or R4 to be subjected to a demetallization reaction and removal of catalyst powder in oil slurry, the product enters the R5 to be subjected to further desulfurization and denitrification, then the obtained product enters a high-pressure separator to be subjected to gas-liquid separation, and the obtained product enters a high-pressure separator to be subjected to gas-liquid separation. And fractionating the obtained liquid in a fractionating tower to obtain gas, naphtha, diesel oil and marine fuel oil.

Description

technical field [0001] The method of the invention relates to the field of heavy oil hydrotreating, in particular to a method for preparing marine fuel oil, especially high metal (Ni+V≥150μg.g -1 ), high residual carbon (CCR≥16wt%) heavy distillate oil, residual oil and oil sand bitumen through hydrocracking and hydrotreating to prepare marine fuel oil. Background technique [0002] At present, the demand for light and heavy oil products in domestic and foreign oil product markets will continue to rise, and the National VI standard has put forward higher requirements for oil product processing. The standard of marine fuel oil is also further improved. Under the above-mentioned market trends, the refining technology that can not only realize the lightening of heavy oil at a relatively economical and reasonable price, but also make the obtained products meet the increasingly stringent specifications of gasoline and diesel products has become a key technology developed by dome...

Claims

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Application Information

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IPC IPC(8): C10G65/00
CPCC10G65/00C10G2300/202Y02P30/20
Inventor 倪术荣王锐吴显军徐伟池王刚马守涛夏恩冬靳丽丽张全国胡长禄张浩张铁珍郭淑芝郭立艳梁宇王紫东姜维李凤铉
Owner PETROCHINA CO LTD
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