Method for processing inferior heavy oil

A low-quality heavy oil and heavy oil technology, which is applied in the multi-stage series-connected refining and cracking process treatment, granular/powder fuel gasification, etc. Effect

Active Publication Date: 2011-11-09
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 inferior heavy oil on the basis of the prior art, which can solve the problem of poor hydrothermal stability of the catalyst existing in the prior art

Method used

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  • Method for processing inferior heavy oil
  • Method for processing inferior heavy oil
  • Method for processing inferior heavy oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] 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 44. 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.

[0043] The content of coke on the spent agent A was 2.90% by weight. The spent agent A at a temperature of 470°C was stripped with steam for 30 minutes. The to-be-generated agent A is divided into two streams, which are sent to the gasifier in stages with gasification agent I and gasification agent II with different oxygen contents, and the...

Embodiment 2

[0052] 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.

[0053]The content of coke on the spent agent B was 3.07% by weight. The spent agent B at a temperature of 475°C was stripped with water steam for 30 minutes. The raw agent B after stripping is divided into two streams, which are respectively sent to the gasifier in stages with gasification agent I and gasification agent II with different oxygen contents, and gasification reaction occurs. The specific gasifica...

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Abstract

A method for processing inferior heavy oil. The method comprises the following steps: allowing a heavy oil raw material to react with a contact agent in a reactor, performing a gasification reaction of the obtained catalyst in a gasifier to generate a syngas-containing gas product and to allow the catalyst to become a semi-regenerant; returning the semi-regenerant to the reactor. The method provided by the invention integrates two aspects of deep processing of inferior heavy oil and reasonable utilization of excess carbonaceous residues, adopts inferior heavy oil as a raw material, performs gasification of surplus coke in a gasifier to generate syngas with the proviso of light oil maximum production, makes reasonable use of residues of heavy oil processing, and produces a product with high economic value.

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 Applications(China)
IPC IPC(8): C10G55/06C10J3/54C10J3/46
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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