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Method for producing gasoline and low-sulfur ship fuel

A low-sulfur ship and gasoline technology, which is applied in the processing of hydrocarbon oil, petroleum industry, hydrocarbon oil processing products, etc., can solve the problems of re-refined oil and oil slurry not being fully utilized, difficult diesel processing, and low gasoline yield , to achieve the effect of improving logistics distribution and mass transfer, reducing equipment investment and operating energy consumption, and reducing metal content

Active Publication Date: 2021-06-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of this route is that the hydrogen consumption is high during the hydrogenation process and the amount of hydrogenation is large. Usually, when the sulfur content meets the indicators, other indicators such as carbon residues are greatly reduced, viscosity is greatly reduced, and the processing cost is high.
Liquefied petroleum gas and catalytic cracking gasoline are ideal components, but catalytic cracking diesel is rich in aromatics and difficult to process
[0007] The existing residual oil hydrotreating and catalytic cracking combined process has problems such as low gasoline yield, difficult diesel processing, insufficient utilization of re-refined oil and oil slurry, and poor economic benefits.

Method used

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  • Method for producing gasoline and low-sulfur ship fuel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] In this example, the method for producing gasoline and low-sulfur marine fuel provided by the present invention is adopted, and the raw material A of the inferior residual oil is used. It can be seen that the sulfur content of the residual oil is as high as 5.12wt%, the residual carbon is 17.50wt%, and the metal (Ni+V) is 226µg. / g, the total nitrogen content is 0.38%, which belongs to high-sulfur inferior residue oil.

[0047] The hydrogenation unit is composed of one fluidized bed and four fixed-bed reactors connected in series. The fluidized bed reactor is filled with catalyst F in Table 2, and the filling volume is 334 mL. The first fixed bed was loaded with three kinds of residual oil hydrogenation protective agents, and the filling volume was 10 mL of FZC-12B catalyst, 15 mL of FZC-103D catalyst, and 35 mL of FZC-103E catalyst; the second fixed bed was loaded with two kinds of residual oil hydrogenation demetallization catalysts. , the filling volume is 45mL of FZ...

Embodiment 2

[0050] Embodiment 2 adopts the method for producing gasoline and low-sulfur marine fuel provided by the present invention, adopts inferior residual oil raw material B, and the properties of residual oil raw material are shown in Table 1. It can be seen that the sulfur content of the residue is 4.20wt%, the nitrogen content is 3972µg / g, the Kang's carbon residue is 15.20wt%, and the metal (Ni+V) is 169µg / g.

[0051] The hydrogenation unit is composed of one fluidized bed and four fixed-bed reactors connected in series, wherein the fluidized bed reactor is filled with the catalyst F in Table 2, and the filling amount is 278 mL. The fixed bed was filled with three kinds of residual oil hydrogenation protection agents in the first reverse, and the filling volumes were 15 mL of FZC-12B catalyst, 15 mL of FZC-103D catalyst, and 30 mL of FZC-103E catalyst; The volume is respectively 30mL of FZC-28A catalyst and 170mL of FZC-204 catalyst; three anti-loading of a residual oil hydrodesu...

Embodiment 3

[0054] The same as in Example 1, the difference is that the catalyst in the hydrogenation device is filled in the following way: wherein the fluidized bed reactor is filled with the catalyst F and the filling amount is 308 mL. Three reactors were set up in the fixed bed with accumulative filling of 423 mL, and two kinds of residual oil hydrogenation protection agents were loaded in one reverse direction. The filling volumes were 10 mL of FZC-12B catalyst and 20 mL of FZC-103E catalyst; Metal catalyst, the filling volume is 100mL for FZC-28A catalyst, and 130mL for FZC-204 catalyst; the three-reverse filling is a residue hydrodesulfurization catalyst FZC-34A, and the filling volume is 163mL.

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Abstract

The invention discloses a method for producing gasoline and low-sulfur ship fuel. The method comprises the following steps: hydrotreating a residual oil raw material through a fluidized bed hydrotreating reaction device and a fixed bed hydrotreating reaction device in sequence to obtain a hydrogenation reaction effluent; carrying out gas-liquid separation on the hydrogenation reaction effluent, not fractionating the obtained liquid phase, taking one part as low-sulfur ship combustion, and carrying out catalytic cracking on the remaining part; and returning a catalytic cracking heavy fraction in the effluent of the catalytic cracking reaction to be mixed with the residual oil raw material for hydrotreating. According to the combined process, high-octane catalytic cracking gasoline and low-sulfur ship fuel products can be produced to the maximum extent. Meanwhile, hydrogenation load is reduced, a catalytic cracking fractionation system is simplified, and equipment investment and operation energy consumption are reduced.

Description

technical field [0001] The invention relates to a method for lightening residual oil, in particular to a combined process method for mainly producing gasoline and low-sulfur marine fuel by using inferior high-sulfur residual oil as raw material. Background technique [0002] With the increasingly strict global environmental protection regulations, clean low-sulfur marine fuel oil (low-sulfur marine fuel) will become one of the oil products that will be the focus of attention in the next few years after the upgrade of light oil products such as clean gasoline and diesel. The International Maritime Organization (IMO) "International Convention for the Prevention of Pollution from Ships" stipulates that from January 2020, the sulfur content of marine fuel oil used for navigation in general areas of the sea will be reduced from the current 3.5% to not more than 3.5%. More than 0.5%; the sulfur content of marine fuel should not exceed 0.1% when sailing in emission control areas. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/00C10G69/04
CPCC10G67/00C10G69/04C10G2400/02C10G2300/202Y02P30/20
Inventor 蒋立敬刘铁斌袁胜华金建辉韩坤鹏朱慧红耿新国
Owner CHINA PETROLEUM & CHEM CORP
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