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Lightweight treatment process of heavy oil

A treatment process and lightweight technology, applied in the petroleum industry, cracking, chemical recovery, etc., can solve the problems of long regeneration time and high energy consumption, and achieve the effect of improving liquid yield, wide adaptability, and solving utilization problems.

Inactive Publication Date: 2014-12-24
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process requires two steps to regenerate the raw agent, which takes a long time to regenerate and consumes a lot of energy.

Method used

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  • Lightweight treatment process of heavy oil
  • Lightweight treatment process of heavy oil
  • Lightweight treatment process of heavy oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The heavy oil required for the experiment was evaluated, and the evaluation data are shown in Table 1.

[0060] Table 1. Residual oil physical property characterization data table

[0061]

Embodiment 2

[0063] (Solid heat carrier) catalyst preparation method: Dissolve 10g of aluminum sulfate in 30ml of water, add sodium hydroxide solution to adjust the pH value to prepare aluminum sol; add a mixture of Y molecular sieve and macroporous alumina, the mass ratio is 2:1, and stir 1 hour; add a certain amount of concentrated hydrochloric acid (mass fraction 36%), stir for 30 minutes, add 20ml of 5mol / L magnesium chloride solution, continue stirring for 30 minutes, spray molding, dry at 120°C for 6h, and roast at 550°C for 4h to obtain the desired catalyst.

Embodiment 3

[0065] With residual carbon value 10% heavy residual oil as raw material, with the catalyst prepared in embodiment 2, in figure 1 The cracking performance at different temperatures is investigated in the heavy oil lightening process shown. Table 2 is the conversion rate and product distribution of the catalyst at various temperatures.

[0066] Table 2 Reaction temperature conversion rate and its influence on product distribution

[0067]

[0068]

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Abstract

The invention relates to a lightweight treatment process of heavy oil. The lightweight treatment process comprises the following steps: cracking heavy oil into micromolecules under action of a catalyst; then, partly removing carbon deposited on the surface of the catalyst by virtue of gasification reaction; and finally, removing the residual carbon on the surface of the catalyst by virtue of combustion to realize regenerating catalyst. The process can be used for realizing lightweight and high-value utilization of heavy oil, is wide in adaptation to raw material oil, capable of processing heavy oil with high residual carbon content, high sulfur nitrogen content and high heavy metal content to obtain high-value lightweight distillate oil, and capable of producing a synthesis gas by removing coke on the surface of the catalyst by virtue of gasification and combustion, so that energy is provided for the system and regeneration recycling of the catalyst is realized.

Description

technical field [0001] The invention belongs to the field of energy and chemical industry for high-value utilization of heavy oil or inferior residue oil, and particularly relates to a lightening and cleaning processing method and process for heavy and inferior oil, specifically a heavy oil Coupling treatment process of catalytic cracking, gasification and combustion of oil. Background technique [0002] With the decline of conventional crude oil resources, the degree of heavy and inferior crude oil continues to deepen. At the same time, a large amount of difficult-to-handle residues (vacuum residues, oil slurry, asphalt, etc.) are also produced during crude oil processing. On the other hand, with the substantial increase in demand for fuel oil and the improvement in quality requirements in our country, it is required that we must maximize the conversion of heavy oil resources into clean light oil products. Inferior heavy oil has the characteristics of high carbon residue ...

Claims

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Application Information

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IPC IPC(8): C10G9/32C10J3/54
CPCY02P20/584
Inventor 李望良张玉明高士秋许光文
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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