Method for preparing modified white carbon black by using oil shale oil-making residual

A technology of white carbon black and oil shale, which is applied in the field of reutilization of oil shale oil residues, can solve problems such as waste residue pollution, achieve the effects of solving waste residue pollution, low cost, and solving solid waste pollution problems

Inactive Publication Date: 2008-09-03
DALIAN UNIV OF TECH +1
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of waste residue pollution in the oil shale pyrolysis process, and provide a method for preparing modified white carbon black from oil shale oil residues. The process is simple, the obtained product has excellent performance, and the cost is low. Environmental friendly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Take the treatment of 1kg Huadian oil shale oil residue as an example to prepare modified white carbon black:

[0019] The first step of calcination: first determine the component content by XRF method (fluorescence spectroscopic analysis method) (the analysis results are shown in Table 1). Put the Huadian oil shale oil residue crushed to 160 mesh in a muffle furnace and calcined at 700°C to 800°C for 1.5 hours;

[0020] The second step of producing white carbon black: add the above-mentioned calcined residue to 4kg of 50%-60% sulfuric acid solution, stir and react at 90°C for 1.5h, and reach the maximum value through the measurement of impurity leaching rate (Fe leaching rate 70%, After Al leaching rate 60%), filter while hot, filtrate can be used as flocculant, filter cake is washed to neutrality, and is placed in 100 ℃ of drying ovens and dries 1h, obtains fluffy crude product white carbon black powder 550g;

[0021] The third step is to modify silica: In the stirre...

Embodiment 2

[0029] The method for making modified white carbon black with oil shale residue from oil production, the specific process steps are the same as in Example 1:

[0030] The first step, calcination: crush the oil shale oil residue to below 160 mesh, place it in a calcination furnace, and calcine it at 700°C to 850°C for 3 hours to burn off residual carbon and maximize Al and Fe is active;

[0031] The second step, making white carbon black: add sulfuric acid solution with a concentration of 50% to 60% to the calcined oil shale oil residue at a weight ratio of 3 to 4.5:1 between the sulfuric acid solution and the residue. Stir and react in the temperature range of ℃ for 1 to 2 hours, so that Al and Fe become acid-soluble substances, filter while it is hot, wash the filter cake to neutrality, and dry it in a drying oven at 100 ℃ to 130 ℃ for 1 to 2 hours to obtain fluffy crude silica powder;

[0032] The third step, modified white carbon black: put the above crude white carbon bl...

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Abstract

The invention relates to the reutilization of the oil shale oil-making residue and provides a method of preparing the modified white carbon black from the oil shale oil-making residue includes: (1) calcining: pulverizing and calcining the oil shale oil-making residue; (2) preparing the white carbon black: adding the sulfuric acid solution to the calcined oil shale oil-making residue, reacting, filtering, washing the filter cake to neutrality, and drying to obtain the coarse white carbon black powder; and (3) modifying the white carbon black: adding modifier, reacting, standing, taking out a hydrophobic layer floating above the solution, and drying to obtain the modified white carbon black. The inventive method not only obtains the modified white carbon black with high purity and low cost but also solves waste residue pollution during the oil shale oil-making process. The method is a new resource reutilization method, which not only solves the solid waste pollution problem during the oil shale resource development but also provides a novel low-cost resource comprehensive utilization technology.

Description

1. Technical field [0001] The invention belongs to the technical field of pollution control and resource comprehensive utilization of solid waste in the process of new energy development and utilization, and particularly relates to the reuse of oil shale residues. 2. Background technology [0002] Oil shale, also known as oil shale, is a solid combustible mineral composed of minerals and organic matter. Dry distillation (pyrolysis) can obtain shale oil with a carbon-hydrogen ratio similar to conventional oil (natural oil), which is an ideal oil substitute. Taste. The International Energy Agency (IEA) refers to oil shale, heavy crude oil, extra heavy crude oil, and tar sands as unconventional oil, and believes that future world energy security will rely more on the supply of unconventional oil. Data show that my country is rich in oil shale resources, with predicted resources of about 700 billion tons, equivalent to about 40 billion tons of shale oil, which is higher than my...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/12C09C3/08
Inventor 张秋民许英梅何德民关珺连玉环
Owner DALIAN UNIV OF TECH
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