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Method for preparing formaldehyde activated carbon adsorbent from ginkgo trees

An activated carbon adsorption, ginkgo tree technology, applied in chemical instruments and methods, inorganic chemistry, other chemical processes and other directions, can solve the problems of slow growth, long time, less utilization of ginkgo trees, etc., to expand application scenarios and fields, and low cost. Effect

Inactive Publication Date: 2018-07-10
孝感市森茂激光数控设备有限公司
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Problems solved by technology

Due to its slow growth, it takes a long time to grow and become thick, so it is not suitable for making furniture or building materials in high demand. At present, the utilization of ginkgo resources is mainly focused on ginkgo leaves and ginkgo fruits. For ginkgo trees relatively little use

Method used

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Embodiment Construction

[0011] In order to enable those skilled in the art to fully understand the technical solutions and beneficial effects of the present invention, further description will be given below in conjunction with specific examples. Those skilled in the art should understand that the following examples are only preferred embodiments of the present invention, and do not constitute any limitation to the present invention.

[0012] The method of using ginkgo trees to prepare formaldehyde activated carbon adsorbents, first cut off the ginkgo trees eliminated in the ginkgo forest, gather them into long and thin strips that are as thick as a thumb, and spread them on the ground to dry the water. When the long wooden strips are dry enough, they are neatly stacked in the carbonization kiln, and the temperature is raised to about 350°C at a rate of 3-5°C for carbonization, and the holding time is about 1 hour. The purpose of cutting into slender strips is to make the interior more susceptible to...

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Abstract

The invention relates to a method for preparing a formaldehyde activated carbon adsorbent from ginkgo trees. The method comprises the steps that firstly, gingko trunks and branches are cut into smallpieces to be put into a carbonization furnace for carbonization, then, under high temperature, water vapor is used for performing repeated activation so that an abundant pore structure can be formed,the adsorption capacity is improved, and finally after drying is performed, packaging is performed to obtain the adsorbent. The ginkgo trees and branches which are not developed or utilized by peoplebasically are used for being developed into the novel formaldehyde activated carbon adsorbent, the application scenarios and fields are enlarged, and the purpose of recycling waste materials is achieved.

Description

technical field [0001] The invention belongs to the technical field of development and utilization of ginkgo resources, and in particular relates to a method for preparing formaldehyde activated carbon adsorbents from ginkgo trees. Background technique [0002] Ginkgo tree, also known as Gongsun tree, grows very slowly and has a very long lifespan. Under natural conditions, it takes more than 20 years from planting to bearing ginkgo fruit, and it takes 40 years for it to bear fruit in large quantities. Due to its slow growth, it takes a long time to grow and become thick, so it is not suitable for making furniture or building materials in high demand. At present, the utilization of ginkgo resources is mainly focused on ginkgo leaves and ginkgo fruits. For ginkgo trees Its use is relatively small. Hubei is rich in ginkgo resources, and it is customary to plant ginkgo everywhere. There are even a large number of ginkgo communities in the local Suizhou and Anlu areas. Every y...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/318C01B32/336B01J20/20
CPCB01J20/20
Inventor 孙红安
Owner 孝感市森茂激光数控设备有限公司
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