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Pretreatment method of heavy and/or inferior oil slurrybed hydrogenation upgrading iron-based catalyst

An iron-based catalyst, a technology for hydrogenation and upgrading, which is applied in the directions of hydrotreating process, metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, etc. The effect of raw material transformation depth

Active Publication Date: 2021-07-02
SYNFUELS CHINA TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] For the pretreatment method of iron-based catalysts for heavy and / or low-quality oil slurry bed hydro-upgrading, there are few disclosed technologies at present, so a heavy and / or low-quality oil slurry-bed hydro-upgrading method is developed Pretreatment methods for iron-based catalysts are necessary

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  • Pretreatment method of heavy and/or inferior oil slurrybed hydrogenation upgrading iron-based catalyst
  • Pretreatment method of heavy and/or inferior oil slurrybed hydrogenation upgrading iron-based catalyst

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Embodiment

[0071] The invention will be described below with reference to the embodiments, but the present invention is not limited thereto. And the reagents and materials used in the examples can be obtained from the business pathway as many cases.

[0072] In the following examples, the catalyst and / or inferior oil matrix bed after the preprocesses obtained in the exemplary embodiment of heavy oil A, Slope B, and Coal tar C evaluate, and / or inferior oil-based catalysts. Analysis of raw material oil is shown in Table 1. Heavy and / or inferior oil Hydrogenation react conditions are shown in Table 2 below.

[0073] Table 1. Properties of raw oil

[0074]

Embodiment 1

[0081] Example 1: C1 catalyzed heavy oil hydrogenation reactions

[0082] The catalyst C1 was preprocessed using the fresh iron-based catalyst using the fresh iron-based catalyst as a fresh iron-based catalyst according to the catalyst D1 of Comparative Example 1.

[0083] 85 kg of fresh iron-based catalyst D1 and 1500 kg as a hydrothermal hydrothermal oil having a deep processing product of heavy oil hydrogenation product were mixed in a pretreatment reactor, preprocessing a mixture, wherein the fresh iron-based catalyst was prepared. The content of D1 is about 5 wt%.

[0084] Access N to the pretreatment reactor 2 Gas, replace the air in the preprocessing reactor. After the replacement is completed, the airflow pressure is adjusted to 2.2 MPa. Temperature control system, raised the temperature of the preprocessing mixture in the reactor to 280 ° C with a temperature rise rate of 0.1 ° C / min, then, the pretreatment gas flow is switched to h. 2 S concentration is 12.5 vol% h 2 S...

Embodiment 2

[0086] Example 2: C2 catalytic residue hydrogenation reaction

[0087] Catalyst C2 with auxiliary powdery Fe 2 O 3 (Auxiliary: 5WT% SIO 2 + 12WT% Al 2 O 3 + 2 wt% V + 0.5 wt% Ni) As a fresh iron-based catalyst, the fresh iron-based catalyst was preprocessed using the following procedure:

[0088] 110 g of the fresh iron-based catalyst with 390 g of Fischer-Six heavy diesel is mixed mixed in a pretreatment reactor, preprocessing the mixture, wherein the fresh iron-based catalyst is present in an amount of 22% by weight.

[0089] Top H in the pretreatment reactor 2 The mixed gas having a CO volume ratio of 2.0 is used as a pretreatment gas stream to replace the air in the pretreatment reactor. After the replacement is completed, the airflow pressure is adjusted to 3.0 MPa. The temperature control system was opened, and the temperature of the preprocessing mixture in the reactor was continuously increased to 280 ° C at a temperature rise rate of 0.3 ° C / min, and the pretreatment ga...

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Abstract

The invention discloses a pretreatment method of a heavy and / or inferior oil slurry bed hydrogenation upgrlading iron-based catalyst. According to the method, a fresh iron-based catalyst is mixed with a pretreatment regulator, and then the catalyst is pretreated under the conditions of specific pretreatment airflow, pressure and the like, so that the hydrogenation activity of the iron-based catalyst is improved. The pretreatment method provided by the invention is controllable in condition, and the treated catalyst has the characteristics of high activity, strong coke inhibition capability and high distillate oil yield, and is beneficial to long-period stable operation of a device, so that the economical efficiency of a heavy and / or inferior oil slurry bed hydrogenation process is improved.

Description

Technical field [0001] The present invention relates to a pretreatment method of an iron-based catalyst, and more particularly to a pretreatment method of heavy and / or inferior oil-based bed hydrotrification ferrous catalysts. Background technique [0002] In the art, heavy or inferior oils include: primitive geological reservoirs (e.g., heavy oil, highly spase oil or natural asphalt); heavy oils for petroleum refining and processing proof (such as normal pressure residue, decompression residue Or coking wax oil); heavy oil and asphalt refined from oil sand and oil shale; in coal / biomass conversion process (eg, pyrolysis, direct liquefaction, gasification, dry distillation, coking, coal and biomass coal / Biomass and Oil Treatment of Full Discharged Piece Oil or Table Distostains. The main feature of heavy oil and inferior oil is that the viscosity and density is large, the carbon / hydrogen gas ratio is high, high heteroatom content, high metal content, and high colloidal / ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/847B01J23/755B01J23/888B01J23/883B01J23/889C10G67/02
CPCB01J23/8472B01J23/755B01J23/8885B01J23/883B01J23/8892B01J23/888C10G67/02
Inventor 杨勇田磊郭强李英李永旺
Owner SYNFUELS CHINA TECH CO LTD
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