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Combined technique and system for treating inferior oils

A combined process and oil product technology, which is applied in the direction of hydrotreating process, hydrocarbon oil treatment, hydrocarbon oil treatment products, etc., can solve the problems of reducing coke yield, limited, etc., and achieve the effect of prolonging the operation cycle and simple process

Active Publication Date: 2018-06-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this method is limited to reduce coke yield and improve product quality

Method used

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  • Combined technique and system for treating inferior oils
  • Combined technique and system for treating inferior oils
  • Combined technique and system for treating inferior oils

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] Raw material A is all used in the hydrogenation pretreatment reactor A, hydrogenation pretreatment reactor B, and hydrogenation pretreatment reactor C described in embodiment 1, and the hydrogenation pretreatment reactor A, hydrogenation pretreatment reactor B, the total amount of catalyst installed in the hydrogenation pretreatment reactor C, the feed properties and the feed amount are exactly the same, the hydrogenation pretreatment reactor A, the hydrogenation pretreatment reactor B, the hydrogenation pretreatment reactor C, The catalyst in hydrotreating reactor D is loaded according to the method in Table 2, the operating conditions are shown in Table 4, the specific reaction results are shown in Table 6, and the properties of the oil produced by ebullated bed hydrogenation are shown in Table 7.

Embodiment 2

[0094] In Example 2, raw material B is used in the hydrogenation pretreatment reactor A, hydrogenation pretreatment reactor B, and hydrogenation pretreatment reactor C. The specific properties are shown in Table 1, and the space velocities of each reverse feed are different. The hourly volume space velocity of liquid A in the hydrogenation pretreatment reactor is 0.20h -1 , the hourly volumetric space velocity of liquid B in the hydrogenation pretreatment reactor is 0.32h -1 , the volumetric space velocity of liquid C in the hydrogenation pretreatment reactor is 0.44h -1 . The same catalyst loading method is adopted in the hydrogenation pretreatment reactor A, the hydrogenation pretreatment reactor B, and the hydrogenation pretreatment reactor C. The catalyst loading method is shown in Table 2, and the operating conditions of each reactor are shown in Table 4. The specific reaction results are shown in Table 6.

Embodiment 3

[0096] In Example 3, the raw material A is used in the hydrogenation pretreatment reactor A, the raw material B is used in the hydrogenation pretreatment reactor B, and the raw material C is used in the hydrogenation pretreatment reactor C. The properties of the raw materials used are shown in Table 1. The feed amount of described hydrogenation pretreatment reactor A, hydrogenation pretreatment reactor B, hydrogenation pretreatment reactor C is the same, and described hydrogenation pretreatment reactor A, hydrogenation pretreatment reactor B, hydrogenation pretreatment reactor The same catalyst loading method is adopted in the hydrogen pretreatment reactor C. The catalyst loading method is shown in Table 2, the operating conditions of each reactor are shown in Table 4, and the specific reaction results are shown in Table 6.

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Abstract

The invention discloses a combined technique and system for treating inferior oils and relates to the field of treatment of inferior oils. The combined technique for treating inferior oils comprises the steps as follows: a heavy oil material produces oil and hydrogen in a fixed bed hydrogenation treatment reaction zone, the oil and the hydrogen are mixed to enter a bubbling bed hydrocracking reaction zone to react, a reaction effluent is separated, and dry gas, liquefied gas, gasoline, diesel and a heavy faction are obtained; the obtained heavy faction sequentially passes through a fixed bed hydrogenation pretreatment reaction zone and the fixed bed hydrogenation treatment reaction zone which are connected in series, and produced oil obtained in the fixed bed hydrogenation treatment reaction zone enters the bubbling bed hydrocracking reaction zone. The operation cycle of a treatment device can be substantially prolonged with the method.

Description

technical field [0001] The invention relates to a method and system for lightening inferior oil products, in particular to a combined process method and processing system for treating inferior oil products by hydrogenation. Background technique [0002] At present, the demand for gasoline, coal, diesel and other oil products, especially the demand for motor gasoline in the domestic and foreign oil product markets will continue to rise, while the demand for heavy fuel oil and other heavy oil products will show a downward trend. At the same time, the properties of crude oil are deteriorating day by day on a global scale, environmental protection regulations are becoming stricter, and increasingly stringent requirements are put forward for the quality of oil products. Therefore, how to realize the lightening of heavy oil and the continuous upgrading of the quality of gasoline and diesel products at a more economical and reasonable cost has become the focus of domestic and forei...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G65/10C10G47/02C10G47/30C10G47/36
CPCC10G47/02C10G47/30C10G47/36C10G65/10C10G2300/202C10G2400/02C10G2400/04
Inventor 刘铁斌耿新国翁延博李洪广
Owner CHINA PETROLEUM & CHEM CORP
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