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High-strength liquid-phase dechlorinating agent and preparation method and application thereof

A dechlorination agent, high-strength technology, applied in chemical instruments and methods, refined hydrocarbon oil, other chemical processes, etc., can solve the problems of complex preparation process, flammable activated carbon, three wastes discharge, etc., and achieve simple preparation, low cost, Ease of entry and exit

Inactive Publication Date: 2019-12-10
武汉禾谷环保有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of this invention is that the preparation process is complicated, the cost is high, and the activated carbon is flammable, and there is a risk of flammability and explosion during high-temperature roasting
[0005] It can be seen that the current liquid-phase dechlorination agents generally have problems such as complicated preparation process, high cost, and discharge of three wastes during the preparation process.

Method used

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  • High-strength liquid-phase dechlorinating agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] a) Weigh 60.0 grams of SiO 2 Diatomaceous earth powder, 2.0 grams of methylcellulose and 30.0 grams of Na 2 CO 3 Sodium carbonate powder, the three are mixed uniformly to obtain mixed powder;

[0029] b) Weigh 10.0 grams of sodium hydroxide, add about 80 milliliters of water, fully dissolve to obtain a clear and transparent solution;

[0030] c) adding the solution obtained in step b) to the powder obtained in step a), and fully kneading to obtain a plastic dough;

[0031] d) Extrude the plastic dough obtained in step c) and dry at 120°C for 2 hours, then bake at 500°C for 3 hours, and cool to obtain the dechlorinating agent A.

Embodiment 2

[0033] a) weigh 87.0 grams of SiO 2 Diatomaceous earth powder and 3.0 g methylcellulose powder 57.0 g K 2 CO 3 Potassium carbonate powder, the three are mixed uniformly to obtain mixed powder;

[0034] b) Weigh 13.0 grams of sodium hydroxide, add about 120 milliliters of water, fully dissolve to obtain a clear and transparent solution;

[0035] c) adding the solution obtained in step b) to the powder obtained in step a), and fully kneading to obtain a plastic dough;

[0036] d) Extrude the plastic dough obtained in step c) and dry at 150°C for 2 hours, then bake at 550°C for 2 hours, and cool to obtain the dechlorinating agent B.

Embodiment 3

[0038] 1) Weigh 35.0 grams of SiO 2 of diatomite powder, 1.0 g of squash gum and 55.0 g of Na 2 CO 3 Sodium carbonate powder, the three are mixed uniformly to obtain mixed powder;

[0039] 2) Weigh 10.0 grams of sodium hydroxide, add about 70 milliliters of water, fully dissolve to obtain a clear and transparent solution;

[0040] 3) adding the solution obtained in step b) into the powder obtained in step a), and fully kneading to obtain a plastic dough;

[0041] 4) Extrude the plastic dough obtained in step c) and dry at 120°C for 8 hours, then bake at 480°C for 4 hours, and cool to obtain the dechlorinating agent C.

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Abstract

The invention relates to a high-strength liquid-phase dechlorinating agent and a preparation method and application thereof. The high-strength liquid-phase dechlorinating agent is suitable for dechlorinating of chlorides in liquid-phase oil products, especially reformed oil; and the high-strength liquid-phase dechlorinating agent takes porous diatomite as a carrier, takes alkali metal carbonate oralkali metal hydroxide as active components and takes methylcellulose or sesbania gel as an assistant, the pore volume is larger than 1.0 ml / g, and the anti-crushing strength of particles is larger than or equal to 100 N / cm2. According to the preparation method of the dechlorinating agent, the diatomite, the alkali metal carbonate and an appropriate amount of assistant powder are weighed according to the weight percentage and evenly mixed with an alkali metal hydroxide solution, a mixture is formed, dried and calcined, and the dechlorinating agent is prepared. The high-strength liquid-phase dechlorinating agent has the remarkable advantages of being unique in structure, high in strength, high in purification capacity, low in cost, simple in preparation process, environmentally friendly and the like.

Description

technical field [0001] The present invention relates to a high-strength liquid-phase dechlorination agent and its preparation method and application, more specifically to a dechlorination agent suitable for removing chlorides in liquid-phase oil products, especially reformed oil, and its preparation method and apply. Background technique [0002] Since the beginning of the new century, in order to increase the output of crude oil, various oil recovery additives such as demulsifiers, wax removers, and acidifiers have been widely used in various oil fields. Many of the oil recovery additives contain various types of organic chlorides. These organic chlorides It has good thermal stability and is difficult to remove by conventional methods. Most of it exists in the straight-run naphtha fraction of atmospheric and vacuum products. my country began to study dechlorination agents in the 1970s. At present, the gas-phase dechlorination technology has developed relatively maturely, b...

Claims

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Application Information

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IPC IPC(8): B01J20/14B01J20/30C10G25/00
CPCB01J20/14B01J20/043B01J20/041C10G25/003C10G2300/202
Inventor 张艺馨
Owner 武汉禾谷环保有限公司
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