Oyster shell modified activated carbon desulfurizing agent, and preparation method thereof

Abstract

The invention discloses an oyster shell modified activated carbon desulfurizing agent. The oyster shell modified activated carbon desulfurizing agent is prepared from the following raw materials in parts by weight: 120-130 parts of activated carbon, 2-4 parts of titanium tetrachloride, 2-3 parts of calcium citrate, 30-35 parts of oyster shell, 5-7 parts of aluminum oxide, 4-6 parts of zinc oxide, 10-15 parts of bentonite, 1-2 parts of pine needle oil, 2-4 parts of ascorbic acid, 4-5 parts of modified diatomite and a suitable amount of water. By virtue of high-temperature carbonization of the oyster shell, the oyster shell modified activated carbon desulfurizing agent disclosed by the invention has a shape with a developed pore structure and a large specific surface area, has the capability of adsorbing various solutes and free gases, is rich in metal oxides such as calcium oxide and can e used for realizing effective desulfuration; meanwhile the oyster shell modified activated carbon desulfurizing agent is added with aluminum oxide and zinc oxide to realize effective desulfuration and catalyze degradation of organics; the bentonite used can realize antibacterial property, deodorization, moisture absorption, catalysis and caking property, so the activated carbon is less in possibility of being disintegrated; pine needle oil is added to emit sweet smell to fresh the brain. The activated carbon of the oyster shell modified activated carbon desulfurizing agent disclosed by the invention is suitable for industrial desulfuration and automobile exhaust desulfuration, daily air purification and water purification, and has wide application and quite good prospect.

Description

technical field [0001] The invention relates to the field of modified functional materials, in particular to an oyster shell modified activated carbon desulfurizer and a preparation method thereof. Background technique [0002] At present, adsorbents are often used to remove toxins, mainly silica gel, activated alumina, activated carbon, molecular sieves, etc., and there are also adsorption materials developed for the selective adsorption of certain components. However, most of these adsorbents have limited adsorption capacity, and different adsorbents need to be studied according to different requirements to play the best role. [0003] Activated carbon is widely used to adsorb harmful substances. The raw materials of activated carbon are mainly carbon-containing substances, including wood, animal bones, blood, coal, petroleum and other minerals, which are obtained by high-temperature carbonization and activation. [0004] The calcium content of oyster shell reaches 39%, t...

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Problems solved by technology

However, most of these adsorbents have limited adsorption capacity, and different adsorbents need to be studied according to different requirements to play the best role.