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Catalyst for pyrolysis of oil shale as well as preparation method and use method of catalyst

A technology of oil shale and catalyst, which is applied in the field of oil shale pyrolysis catalyst and its preparation, can solve the problems of difficult industrialization, complex process, low efficiency of pyrolysis, etc., to improve the morphology, structure and dispersion, and accelerate Reaction progress and the effect of increasing yield

Inactive Publication Date: 2014-06-25
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

One is that the traditional heating method is adopted, and the efficiency of pyrolysis is low; the other is that some methods adopt relatively complicated processes, which are difficult to realize industrialization

Method used

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  • Catalyst for pyrolysis of oil shale as well as preparation method and use method of catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The catalyst of the present embodiment is made of the following raw materials in mass percentage: 5% molecular sieve, 3% activated clay, 45% organic cobaltate, 10% metal sulfide, 12% glyceride, and 25% paraffin; The organic cobaltate is cobalt acetate; the metal sulfide is nickel sulfide; the molecular sieve is 5A molecular sieve; the glyceric acid ester is glyceryl stearate; and the paraffin is industrial paraffin.

[0031] The preparation method of the catalyst in this example is as follows: after mixing the raw materials, heat it to 70° C. under stirring condition, then continue stirring for 40 minutes, and obtain the catalyst for oil shale pyrolysis after natural cooling.

[0032] The method of using the catalyst of this embodiment to catalyze pyrolysis of oil shale:

[0033] Step 1, crushing and screening the oil shale minerals, collecting oil shale with a particle size not greater than 25 mm; testing the used oil shale, the results are shown in Table 1;

[0034] ...

Embodiment 2

[0046] This embodiment is the same as Example 1, except that the molecular sieves used are Y-type molecular sieves, ZSM molecular sieves, 13X-type molecular sieves, ZSM molecular sieves loaded with potassium salts, ZSM molecular sieves loaded with sodium salts, ZSM molecular sieves loaded with cobalt salts, 13X molecular sieve loaded with potassium salt, 13X molecular sieve loaded with sodium salt or 13X molecular sieve loaded with cobalt salt, or 5A molecular sieve, Y-type molecular sieve, ZSM molecular sieve, 13X molecular sieve, ZSM molecular sieve loaded with potassium salt, ZSM molecular sieve loaded with sodium salt , at least two of ZSM molecular sieves loaded with cobalt salts, 13X molecular sieves loaded with potassium salts, 13X molecular sieves loaded with sodium salts, and 13X molecular sieves loaded with cobalt salts; the organic cobaltates used are cobalt oxalate, cobalt naphthenate or neodecyl cobalt acid, or at least two of cobalt acetate, cobalt oxalate, cobalt...

Embodiment 3

[0048] The catalyst of the present embodiment is made of the following raw materials in mass percentage: molecular sieve 2%, activated clay 1%, organic cobaltate 60%, metal sulfide 5%, glyceride 17%, paraffin 15%; The organic cobaltate is cobalt neodecanoate; the metal sulfide is molybdenum sulfide; the molecular sieve is Y-type molecular sieve and ZSM-5 molecular sieve (mass ratio 2:1); the glyceric acid ester is glyceryl stearate ; The paraffin is chlorinated paraffin.

[0049] The preparation method of the catalyst in this example is as follows: after mixing the raw materials, heat to 80° C. under stirring condition, then continue to stir for 30 minutes, and obtain the catalyst for oil shale pyrolysis after natural cooling.

[0050] The method of using the catalyst of this embodiment to catalyze pyrolysis of oil shale:

[0051] Step 1, crushing and screening the oil shale minerals, collecting oil shale with a particle size not greater than 25mm, the industrial analysis and...

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Abstract

The invention discloses a catalyst for pyrolysis of oil shale. The catalyst is prepared from the following raw materials by weight percentage: 2-8% of a molecular sieve, 1-5% of activated clay, 10-60% of organic cobaltate, 5-20% of metal sulfide, 8-30% of glycerate, and 15-35% of paraffin; the organic cobaltate is one or more of cobalt acetate, cobalt oxalate, cobalt naphthenate and cobalt neocaprate; the metal sulfide is molybdenum sulfide and / or nickel sulfide. The invention further discloses a preparation method of the catalyst and a use method of the catalyst. According to the catalyst disclosed by the invention, the pyrolysis efficiency of the oil shale can be improved, the distribution of pyrolysis products of the oil shale is improved, more light products are produced, and components of gasoline and diesel oil can be separated through rectification. According to the preparation method and use method of the catalyst, which are disclosed by the invention, the catalytic pyrolysis and microwave heating are combined, so that the utilization efficiency of energy source can be improved, the composition and process performance of liquid fuel are improved, and the following processing difficulty is reduced.

Description

technical field [0001] The invention belongs to the technical field of oil shale pyrolysis, and in particular relates to a catalyst for oil shale pyrolysis, a preparation method and a use method thereof. Background technique [0002] With the continuous increase of international energy demand, the utilization of unconventional energy has been paid attention to. Oil shale (also known as kerogen shale) is a fine-grained sedimentary rock containing solid combustible organic matter in the mineral body and showing fine bedding. It belongs to unconventional oil and gas resources, and its oil content is generally greater than 3.5%. Oil shale can produce shale oil, liquefied petroleum gas, shale ash, etc. through pyrolysis; shale oil can produce gasoline, kerosene, diesel oil, paraffin, petroleum coke and other chemical products; by-product shale ash It can extract valuable metals, prepare high value-added materials, and produce building materials, etc. Oil shale has the advantage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/28B01J31/34C10B53/06
Inventor 罗万江兰新哲宋永辉苏婷赵西成周军张秋利
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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