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Method for processing low-quality heavy oil and simultaneously producing synthetic gas

A technology of inferior heavy oil and syngas, which is applied in granular/powder fuel gasification, multi-stage series-connected refining and cracking process treatment, chemical recovery, etc. It can solve the problems of low thermal efficiency and fast hydrothermal deactivation of catalysts. achieve the effect of reducing carbon dioxide emissions

Active Publication Date: 2014-04-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a method for processing low-quality heavy oil and producing syngas on the basis of the prior art, which can solve the problems of low thermal efficiency and rapid hydrothermal deactivation of the catalyst in the prior art.

Method used

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  • Method for processing low-quality heavy oil and simultaneously producing synthetic gas
  • Method for processing low-quality heavy oil and simultaneously producing synthetic gas
  • Method for processing low-quality heavy oil and simultaneously producing synthetic gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Mix USY molecular sieve, silicon-aluminum matrix, silicon-based binder with a small amount of deionization in a mass ratio of 10:55:35, mix and beat, spray dry, shape, and roast to obtain contact agent A. The initial microreaction activity of contact agent A was 16. The residual oil raw material contacts and reacts with the contact agent A in the fluidized bed reactor, the deactivated contact agent is separated from the product oil and gas, and the product oil and gas are fractionated to obtain dry gas, distillate oil and other products, the reaction conditions and product distribution of the contact reaction As shown in table 2.

[0048] The content of coke on the spent agent A was 2.83% by weight. The spent agent A was stripped with steam for 30 minutes to obtain the spent agent A at a temperature of 470°C. The spent agent A after the stripping and the product gas of the gasifier exchange heat countercurrently in the heat exchange unit, and the temperature of the sp...

Embodiment 2

[0056] The acid clay that has been pickled, roasted and sieved is sieved with a particle size range of 20-100 μm, and used as contact agent B. The initial microreaction activity of contact agent B is 8. The residual oil raw material contacts and reacts with the contact agent B in the fluidized bed reactor, the deactivated contact agent is separated from the product oil and gas, and the product oil and gas are fractionated to obtain dry gas, distillate oil and other products, the reaction conditions and product distribution of the contact reaction As shown in table 2.

[0057] The content of coke on the spent agent B was 2.31% by weight. The spent agent B was stripped with steam for 30 minutes to obtain the spent agent B at a temperature of 475°C. The spent agent B after stripping and the product gas of the gasifier exchange heat countercurrently in the heat exchange unit, and the temperature of the spent agent B after spin separation is 615°C. The to-be-generated agent B is...

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Abstract

The invention relates to a method for processing low-quality heavy oil and simultaneously producing a synthetic gas. The method comprises the following steps: reacting heavy oil raw materials with a contact agent in a reactor to obtain a coked catalyst, and carrying out gasification reaction on the coked catalyst in a gasifier to generate a gas product containing the synthetic gas and to convert the coked catalyst into a semi-regenerative agent; and delivering the semi-regenerative agent to a regenerator, carrying out complete regeneration under the regeneration reaction conditions to obtain regenerated flue gas and a regenerated agent, returning the regenerated flue gas to the gasifier and returning the regenerated agent to the reactor. The method provided by the invention integrates the deep processing of low-quality heavy oil and the reasonable utilization of excess carbonaceous residues, gasifies surplus coke in the gasifier to generate the synthetic gas from the low-quality heavy oil used as the raw material on the premise of maximally producing light oil, and rationally utilizes the heavy oil processing residues to produce the products with high economic values.

Description

technical field [0001] The present invention relates to a combined process for the contact cracking of heavy oil and the production of synthesis gas from solid carbonaceous materials in the absence of hydrogen. Background technique [0002] The development trend of heavy and inferior crude oil in the world and the increasingly stringent environmental protection regulations have brought many new problems to the petroleum processing industry. For example, the increase of impurity content in raw oil and the reduction of H / C atomic ratio require that before the processing of raw oil and in order to improve the quality of the product, it is necessary to undergo hydrotreating or hydrofinishing process. Therefore, the hydrogenation process has been become an indispensable means of processing. Although the catalytic reforming process can by-produce high-purity hydrogen, this amount of hydrogen is far from meeting the needs of the hydrogenation process. Existing technologies can pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G55/06C10J3/54C10J3/46
CPCY02P20/584
Inventor 门秀杰张书红王子军李延军吴治国汪燮卿
Owner CHINA PETROLEUM & CHEM CORP
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