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Camellia oleifera seed shell activated carbon and its preparation process

Camellia oleifera seed husk and preparation technology, which can be used in other chemical processes, catalyst carriers, physical/chemical process catalysts, etc., can solve problems such as waste, loss of active substances in oleifera seed husk, and achieve improved dissolution rate, increased added value, The effect of significant immune activity

Active Publication Date: 2021-06-08
ANHUI YUMIN ECOLOGICAL AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Camellia oleifera seed shells are leftovers in the process of preparing tea oil. At present, the most important direction of resource utilization of camellia oleifera seed shells is to prepare activated carbon. Because camellia oleifera seed shells are rich in active ingredients such as tea saponin, tea seed polysaccharide, and tea seed protein , directly activated by high-temperature carbonization without grading treatment, will inevitably cause the loss and waste of a large amount of active substances in the camellia oleifera seed shell

Method used

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  • Camellia oleifera seed shell activated carbon and its preparation process
  • Camellia oleifera seed shell activated carbon and its preparation process

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Example 1 Preparation of Nitrogen-doped Sulfonated Mesoporous Activated Carbon Using Camellia oleifera Seed Shell

[0021] S1: Ammonification and extraction: crush 20g of camellia oleifera seed shells to 100 mesh, add 16ml of saturated ammonia + 16ml of 75% ethanol solution, and let it stand for 6 hours;

[0022] S2: Steam explosion: Under the conditions of 1.2MPa and 130°C, steam the camellia seed shell slurry treated in S1 for 3 times, 60s each time;

[0023] S3: Extract active substances: filter the camellia seed shell slurry treated in S2, volatilize the remaining ammonia molecules in the filtrate at 75°C, recover ethanol by rotary evaporation, and obtain the crude product containing tea saponin, tea seed polysaccharide, and tea seed protein after drying, and Wash and dry the filter residue of camellia oleifera seed shell, and set aside;

[0024] S4: Carbonization and activation: Dissolve 1.5g of sulfur trioxide-triethylamine complex in 3ml of DMF solvent, and add ...

Embodiment 2

[0025] Example 2 Preparation of Nitrogen-Doped Sulfonated Mesoporous Activated Carbon Using Camellia oleifera Seed Shells

[0026] S1: Ammonification and extraction: crush 20g of camellia oleifera seed shells to 100 mesh, add 20ml of saturated ammonia water + 20ml of 75% ethanol solution, and let it stand for 6-12 hours;

[0027] S2: Steam explosion: Under the conditions of 1.8MPa and 140°C, steam the camellia seed shell slurry treated in S1 for 4 times, 90s each time;

[0028] S3: Extract active substances: filter the camellia seed shell slurry treated in S2, volatilize the remaining ammonia molecules in the filtrate at 75°C, recover ethanol by rotary evaporation, and obtain the crude product containing tea saponin, tea seed polysaccharide, and tea seed protein after drying, and Wash and dry the filter residue of camellia oleifera seed shell, and set aside;

[0029] S4: Carbonization and activation: Dissolve 1.8g of sulfur trioxide-triethylamine complex in 4ml of DMF solvent...

Embodiment 3

[0030] Example 3 Preparation of Nitrogen-Doped Sulfonated Mesoporous Activated Carbon Using Camellia oleifera Seed Shells

[0031] S1: Ammonification and extraction: crush 20g of camellia oleifera seed shells to 100 mesh, add 20ml of saturated ammonia water + 20ml of 75% ethanol solution, and let it stand for 12 hours;

[0032] S2: Steam explosion: Under the conditions of 2.4MPa and 150°C, steam the camellia seed shell slurry treated in S1 for 4 times, 100s each time;

[0033] S3: Extract active substances: filter the camellia seed shell slurry treated in S2, volatilize the remaining ammonia molecules in the filtrate at 75°C, recover ethanol by rotary evaporation, and obtain the crude product containing tea saponin, tea seed polysaccharide, and tea seed protein after drying, and Wash and dry the filter residue of camellia oleifera seed shell, and set aside;

[0034] S4: Carbonization and activation: Dissolve 2.0g of sulfur trioxide-triethylamine complex in 5ml of DMF solvent,...

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Abstract

The invention discloses a camellia oleifera seed shell activated carbon and a preparation process thereof: the activated carbon uses the camellia oleifera seed husk as a carbon source, and after ammoniation, leaching, and steam explosion treatment in advance, extracts active substances in the camellia oleifera seed shell, and then uses three Sulfur oxide-triethylamine compound is used as sulfonating agent, and ammonium bicarbonate is used as activating agent to prepare nitrogen-doped sulfonated mesoporous activated carbon through carbonization and activation. , the nitrogen content is 10-15%, and the specific surface area is 1600-2200m 2 / g, the mesoporosity reaches 48-65%, and the average pore diameter is 4-6nm. The present invention preliminarily extracts tea saponin, tea seed polysaccharide, tea seed protein and other active substances in camellia oleifera seed husks through grading treatment on camellia oleifera seed husks, and then carbonizes and activates them to obtain camellia oleifera seed husk extract and mesoporous Activated carbon, so as to realize the comprehensive utilization of resources and increase the added value of camellia oleifera seed shell, the activated carbon has continuously adjustable mesopore diameter and mesoporosity, and exhibits excellent adsorption, desorption and catalytic performance.

Description

technical field [0001] The invention belongs to the technical field of resource utilization of camellia oleifera seed shells, and specifically relates to a nitrogen-doped sulfonated mesoporous activated carbon using camellia oleifera seed shells as a raw material and a preparation process thereof. Background technique [0002] Camellia oleifera seed shells are leftovers in the process of preparing tea oil. At present, the main direction of resource utilization of camellia oleifera seed shells is to prepare activated carbon. Because camellia oleifera seed shells are rich in active ingredients such as tea saponin, tea seed polysaccharide, and tea seed protein , without grading treatment, directly carbonizing and activating it at high temperature will inevitably cause the loss and waste of a large amount of active substances in the camellia oleifera seed shell. In addition, with the maturity of porous material preparation technology, functional activated carbon with high mesopo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/324C07J63/00B01J27/24B01J32/00B01J20/20B01J20/28B01J20/30
CPCB01J20/02B01J20/20B01J20/28083B01J27/24C07J63/008C01B32/324
Inventor 李必琼尹和山魏显威
Owner ANHUI YUMIN ECOLOGICAL AGRI
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