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Preparation method of dehumidifying and formaldehyde-removing coffee residue air freshening bag

A technology of fresh air and coffee grounds, applied in the field of coffee, can solve the problems of uneven quality of air fresheners, incomplete degradation of pollutants, secondary air pollution, etc., and achieve the effect of improving flexibility and diversity, good dehumidification performance, and cost saving

Inactive Publication Date: 2018-10-09
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the uneven quality of air fresheners sold on the market, some air fresheners may use solvents or essences with lower flash points or boiling points (higher volatility), and they are stored in a closed and narrow space for a long time. Higher vapor pressure can form a higher local concentration, and if it encounters an open flame or spark, it may cause the risk of flashing or even deflagration; on the other hand, many air freshener products claim to eliminate or inhibit air pollutants It may contain volatile chemical substances that may cause eye irritation, eye damage, headache, nausea, etc. to car owners and passengers, or may cause secondary air pollution due to incomplete degradation of pollutants
[0006] Due to the roasting effect, coffee grounds have a large specific surface area and a strong aroma, which has good effects in dehumidification, gas adsorption and deodorization. However, for the low-cost utilization of coffee grounds, for example, the coffee grounds themselves The combination of aroma and appropriate proportion of air freshening substances, and the combination of coffee grounds and activated carbon have not been reported yet

Method used

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  • Preparation method of dehumidifying and formaldehyde-removing coffee residue air freshening bag
  • Preparation method of dehumidifying and formaldehyde-removing coffee residue air freshening bag
  • Preparation method of dehumidifying and formaldehyde-removing coffee residue air freshening bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Recover the coffee grounds, air-dry them under natural conditions for 3-4 days or treat them in an oven at 50°C for 5 hours, pass through a 10-mesh sieve, and pack them into bags for later use.

[0036] (2) Prepare part of spare coffee grounds as activated carbon. Place the coffee grounds in a vacuum pyrolysis device and keep at 500°C for 60 minutes to obtain the coffee grounds carbon precursor; add the coffee grounds carbon precursor to the phosphoric acid solution for soaking, ultrasonication and drying; put the impregnated and dried raw materials into vacuum pyrolysis The device was activated at a constant temperature of 600°C for 20 minutes; distilled water at 90°C repeatedly washed coffee grounds activated carbon, dried after suction filtration, cooled, and fully ground through an 80-mesh sieve to obtain coffee grounds activated carbon, which can be compressed and molded if necessary.

[0037] (3) Mix the following components in parts by mass: 70 parts of coffe...

Embodiment 2

[0039] (1) Recover the coffee grounds, air-dry them for 3-4 days under natural conditions or treat them in an oven at 50°C for 3 hours, pass them through a 10-mesh sieve, and pack them into bags for later use.

[0040](2) Prepare part of spare coffee grounds as activated carbon. Place the coffee grounds in a vacuum pyrolysis device and keep at 500°C for 60 minutes to obtain the coffee grounds carbon precursor; add the coffee grounds carbon precursor to the phosphoric acid solution for soaking, ultrasonication and drying; put the impregnated and dried raw materials into vacuum pyrolysis The device was activated at a constant temperature of 600°C for 20 minutes; distilled water at 90°C repeatedly washed coffee grounds activated carbon, dried after suction filtration, cooled, and fully ground through an 80-mesh sieve to obtain coffee grounds activated carbon, which can be compressed and molded if necessary.

[0041] (3) Mix the following components in parts by mass: 75 parts of c...

Embodiment 3

[0043] (1) Recover the coffee grounds, air-dry them for 3-4 days under natural conditions or treat them in an oven at 50°C for 3 hours, pass them through a 10-mesh sieve, and pack them into bags for later use.

[0044] (2) Prepare part of spare coffee grounds as activated carbon. Place the coffee grounds in a vacuum pyrolysis device and keep at 500°C for 60 minutes to obtain the coffee grounds carbon precursor; add the coffee grounds carbon precursor to the phosphoric acid solution for soaking, ultrasonication and drying; put the impregnated and dried raw materials into vacuum pyrolysis The device was activated at a constant temperature of 600°C for 20 minutes; distilled water at 90°C repeatedly washed coffee grounds activated carbon, dried after suction filtration, cooled, and fully ground through an 80-mesh sieve to obtain coffee grounds activated carbon, which can be compressed and molded if necessary.

[0045] (3) The following components in parts by mass: 75 parts of coff...

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Abstract

The invention discloses a preparation method of a dehumidifying and formaldehyde-removing coffee residue air freshening bag. The preparation method comprises the following steps: 1) weighing the following components in parts by weight: 60 to 98 parts of coffee residue, 5 to 35 parts of activated carbon and 1 to 5 parts of edible powder essence or coffee essence; and 2) mixing the components obtained in the step 1) uniformly, packaging and storing. The air freshening bag prepared by the method effectively utilizes the coffee residues, improves the adsorption effect on formaldehyde by the air freshening bag and is favorable for air dehumidification.

Description

technical field [0001] The invention belongs to the technical field of coffee, and in particular relates to a preparation method of a dehumidifying and formaldehyde-removing coffee grounds air freshening bag. Background technique [0002] Among the biomass, the annual output of coffee in the world is about 9.6 million tons, and it is estimated that nearly 6 million tons of coffee grounds are thrown into landfill or incinerated every day, resulting in waste of resources and environmental pollution. Although coffee grounds have unlimited potential application value, such as biofuel, healthy food and organic fertilizer, etc., but the cost of utilization is relatively high, and with the increase of coffee consumption every year, discarded coffee grounds are a huge unused resource, so , the development of new ways to recycle coffee grounds needs to be put on the agenda. [0003] At present, some researchers use KOH to activate coffee grounds to prepare activated carbon. Using wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/02B01D53/26B01J20/20B01J20/30A61L9/16A61L9/00A61L101/04A61L101/56
CPCA61L9/00A61L9/16A61L2209/21A61L2209/22B01D53/02B01D53/261B01D2253/102B01J20/20B01J2220/4893
Inventor 冷小京牛丽丽陈钰莹宋萧萧叶艳梅庄文娟
Owner CHINA AGRI UNIV
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