Porous and granular ANFO (ammonium nitrate fuel oil) and preparation method thereof

A technology of ammonium oil explosives and granular ammonium nitrate, applied in explosives, energy input, etc., can solve the problems of high acid value, poor oxidation stability, and high oxygen content of fuel oil, achieve good explosive performance, improve production safety, and contain The effect of low oxygen

Active Publication Date: 2017-01-11
内蒙古生力民爆股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since this kind of biomass itself is cellulose, hemicellulose and lignin are all formed, and the oxygen content is high, the fuel oil in the pyrolysis product has a high acid value, high viscosity, poor oxidation s

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The first step; preparation of biomass fuel oil

[0024] Under the protection of nitrogen, hydrogenated palm oil with a mass ratio of 99.9:0.1 and potassium carbonate are uniformly mixed, and then rapid thermal cracking is carried out in a cracking furnace. The cracking temperature is 350°C, and the petroleum ether with a boiling range of 30-60°C is used for cooling and cracking. After the product is produced, the mixture is evaporated under negative pressure at 45°C to separate petroleum ether and then recycled. The pyrolysis product obtained above is subjected to heating, distillation and separation, and biomass fuel oil components with a distillation range above 170° C. are collected, cooled, and used as raw materials for preparing porous granular ammonium nitrate oil phase materials.

[0025] The second step; the preparation of porous granular ammonium nitrate

[0026] The porous granular ammonium oil explosive of the present invention is obtained by mixing the por...

Embodiment 2

[0028] The first step; preparation of biomass fuel oil

[0029] Under the protection of nitrogen, after uniformly mixing hydrogenated soybean oil with a mass ratio of 98:2 and potassium hydroxide, rapid thermal cracking is carried out in a cracking furnace. The cracking temperature is 450°C, and the petroleum ether with a boiling range of 30-60°C is collected and cooled for cracking. After the product is produced, the mixture is evaporated under negative pressure at 45°C to separate petroleum ether and then recycled. The pyrolysis product obtained above is subjected to distillation and separation, and biomass fuel oil components with a distillation range above 170° C. are collected, cooled, and used as raw materials for preparing porous granular ammonium nitrate oil phase materials.

[0030] The second step; the preparation of porous granular ammonium nitrate

[0031] The porous granular ammonium oil explosive of the present invention is obtained by mixing the porous granular...

Embodiment 3

[0033] The first step; preparation of biomass fuel oil

[0034] Under the protection of nitrogen, hydrogenated rapeseed oil with a mass ratio of 99:1 and sodium hydroxide were uniformly mixed, and then rapidly thermally cracked in a cracking furnace at a cracking temperature of 400°C, and collected with petroleum ether with a boiling range of 30-60°C After cooling the cracked product, the mixture is evaporated and separated from petroleum ether under negative pressure at 45°C, and then recycled. The biomass fuel oil obtained above is subjected to distillation and separation, and the biomass fuel oil components with a distillation range above 170° C. are collected, cooled, and used as raw materials for preparing porous granular ammonium nitrate oil phase materials.

[0035] The second step; the preparation of porous granular ammonium nitrate

[0036]The porous granular ammonium oil explosive of the present invention is obtained by mixing the porous granular ammonium nitrate an...

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PUM

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Abstract

The invention discloses porous and granular ANFO (ammonium nitrate fuel oil) and a preparation method thereof. The porous and granular ANFO comprises components in percentage by mass as follows: 93%-97% of porous and granular ammonium nitrate and 3%-7% of biomass fuel oil, wherein the distillation range of the biomass fuel oil is 170 DEG C or higher. The preparation method of the porous and granular ANFO comprises the steps that hydrogenated oil is subjected to thermal cracking rapidly in presence of a catalyst, a cracking product is purified, light yellow transparent biomass fuel oil is obtained and mixed with porous and granular ANFO in proportion, and the porous and granular ANFO is obtained. The porous and granular ANFO has high storage stability and better explosion performance, the preparation method adopts a simple process, the used raw materials are renewable energy sources, little environmental pollution is produced, and industrial production is facilitated.

Description

technical field [0001] The invention relates to a porous granular ammonium oil explosive and a preparation method thereof, in particular to a porous granular ammonium oil explosive prepared by utilizing hydrogenated oil cracking to produce hydrocarbon fuel oil and a preparation method thereof. Background technique [0002] Porous granular ammonium oil explosives, due to its simple components, only porous granular ammonium nitrate and diesel oil, its operation is simple, only need to simply mix porous granular ammonium nitrate and diesel oil to obtain porous granular ammonium oil explosives, while porous granular ammonium nitrate and diesel oil The low cost of diesel oil makes the cost of porous granular ammonium oil explosives lower. Therefore, porous granular ammonium oil explosives have been widely used in the world. In China's civil explosion industry planning, it is also clearly proposed to vigorously develop porous granular ammonium oil explosives. Porous granular ammon...

Claims

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Application Information

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IPC IPC(8): C06B31/28
CPCY02P20/133C06B31/285
Inventor 许畅
Owner 内蒙古生力民爆股份有限公司
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