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High-selectivity fuel adsorption and desulfurization agent of bamboo source porous biomass carbon

A high-selectivity, adsorption desulfurization technology, applied in the treatment of hydrocarbon oil, refined hydrocarbon oil, petroleum industry, etc., can solve the problems of desulfurization selectivity, commercial fuel desulfurization efficiency, etc. The effect of group improvement and wide source

Inactive Publication Date: 2017-06-13
HUNAN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aromatics in fuel oil and benzothiophene sulfides compete for adsorption on the adsorption desulfurizer, resulting in a decrease in desulfurization selectivity, thereby reducing the desulfurization efficiency of commercial fuel oil

Method used

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  • High-selectivity fuel adsorption and desulfurization agent of bamboo source porous biomass carbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: Weigh 6g of bamboo powder into a beaker, and weigh 20% ZnCl of the amount of bamboo powder 2 Dissolve with deionized water, and add a few drops of concentrated hydrochloric acid to make the solution clear, then put the solution into a beaker containing bamboo powder, stir the bamboo powder evenly, soak it at room temperature for 12 hours, and then add 40 o Bake in the vacuum oven of C for 12 hours, take it out and add it to the quartz glass tube, in a tube furnace at 700 o Sintered at C for 2 h, cool to room temperature naturally, take out the material and wash with deionized water, pickling, and water until the filtrate is neutral. Put the obtained material into 110 oC Dry in an oven for 8 hours. Weigh 1.5g of the above bamboo source porous biochar, treat it with 9ml of 65% nitric acid at 80°C for 8 hours, wash it with distilled water until the filtrate is neutral, and then dry it in an oven at 110°C for 8 hours. The material is denoted as BC-20Z-700-80O. The...

Embodiment 2

[0020] Example 2: Weigh 8g of bamboo powder into a beaker, weigh 50% of the amount of ZnCl of the bamboo powder 2 Dissolve with deionized water, and add a few drops of concentrated hydrochloric acid to make the solution clear, then add the solution to a beaker containing bamboo powder, stir the bamboo powder evenly, soak it at room temperature for 18 hours, and then add 60 o Bake in the vacuum oven of C for 8 hours, take it out and put it into a quartz glass tube, in a tube furnace under a nitrogen atmosphere at 500 o Sintered at C for 3 h, cool to room temperature naturally, take out the material and wash with deionized water, pickling, and water until the filtrate is neutral. Put the obtained material into 110 oC Dry in an oven for 10 hours. Weigh 2g of bamboo source porous biochar and treat it with 12 ml of 65% nitric acid at 90°C for 3 hours, wash it with distilled water until the filtrate is neutral, and then dry it in an oven at 110°C for 9 hours. The material is denoted ...

Embodiment 3

[0021] Example 3: Weigh 10g of bamboo powder into a beaker, weigh 30% of the amount of bamboo powder and dissolve phosphoric acid in deionized water, then add the solution to a beaker containing bamboo powder, stir the bamboo powder evenly, and place it at room temperature. Soak for 20h, then add 50 o Bake in the vacuum oven of C for 10 hours, take it out and put it into a quartz glass tube, in a tube furnace under a nitrogen atmosphere at 600 o Sintered at C for 3 h, cool to room temperature naturally, take out the material and wash with deionized water, pickling, and water until the filtrate is neutral. Put the obtained material into 110 oC Dry in an oven for 10 hours. Weigh 4g of bamboo source porous biochar, treat it with 24ml of 65% nitric acid at 110°C for 4h, wash it with distilled water until the filtrate is neutral, and then dry it in an oven at 110°C for 10h. The material is denoted as BC-30P-600-110O. The pore structure parameters, total surface acid content, adsorp...

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Abstract

The invention discloses a high-selectivity fuel adsorption and desulfurization agent of a bamboo source porous biomass carbon. The high-selectivity fuel adsorption and desulfurization agent is prepared through chemical activation and carbonization and concentrated nitric acid oxidation; and the high-selectivity fuel adsorption and desulfurization agent comprises the steps of carrying out wet impregnation on 20-40mesh bamboo powder by using chemical activator deionized water clear solutions of zinc chloride, phosphoric acid or potassium hydroxide at a room temperature for 12-24 h, putting a product into a vacuum oven of 40-80 DEG C for baking for 6-12 h, treating the product in a quartz glass tube in a tube furnace in a nitrogen atmosphere at 500-700 DEG C for 2-4 h, naturally cooling to a room temperature, washing and pickling by using deionized water, washing until filtrate is neutral and drying in the oven of 110 DEG C for 8-12 h to obtain the bamboo source porous biomass carbon; and treating the bamboo source porous biomass carbon by using 65% nitric acid at 80-120 DEG C for 3-8 h, washing to be neutral by using distilled water and drying in the oven of 110 DEG C for 8-12 h to prepare the material. The high-selectivity fuel adsorption and desulfurization agent is low in cost and small in structure damage after being oxidized by the nitric acid, and is suitable for being used as the high-selectivity fuel adsorption and desulfurization agent; and surface acidic groups are greatly improved.

Description

Technical field [0001] The invention relates to the preparation and application fields of a new type of fuel oil highly selective adsorption desulfurizer, in particular to a bamboo-derived porous biomass charcoal prepared by chemically activated carbonization and modified by nitric acid oxidation with high surface acidic functional groups. Selective fuel adsorption desulfurizer. Background technique [0002] The bamboo-derived porous biomass carbon prepared by chemical activation carbonization is a fuel adsorption desulfurizer with high desulfurization rate. It is mainly due to its rich micropores and higher surface acid groups than commercial activated carbon. Desulfurization rate of commercial activated carbon. [0003] As a valuable fuel adsorption desulfurizer, it not only has a high desulfurization rate, but also requires high desulfurization selectivity. [0004] The aromatic hydrocarbons and benzothiophene sulfides in the fuel are competitively adsorbed on the adsorbent desu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20C10G25/00B01J20/30
CPCB01J20/20C10G25/003C10G2300/202
Inventor 刘亚纯伏再辉张超姚春莲杨恩博尹笃林
Owner HUNAN NORMAL UNIVERSITY
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