Composite porous activated carbon flue gas adsorbent and preparation method thereof

Abstract

The invention discloses a composite porous activated carbon flue gas adsorbent which is characterized by comprising the following raw materials in parts by weight: 98-105 parts of shell activated carbon, 36-40 parts of diatomite, 2-3 parts of sodium metasilicate, 2-3 parts of rosin, 2-3 parts of VAE emulsion, 2-3 parts of polyvinyl alcohol, 1-2 parts of sodium alcohol ether sulphate, 1-2 parts of sodium citrate, 1-2 parts of gypsum residue, 2.5-3.5 parts of pulverized fuel ash, 4-5 parts of edible corn starch, 2-3 parts of lanthanum nitrate, 9-12 parts of glass fiber powder, 4-6 parts of adsorption aids and a proper amount of water. The composite porous activated carbon flue gas adsorbent disclosed by the invention is reasonable in formula, viscous matters such as polyvinyl alcohol and edible corn starch are added, the toughness and strength of the activated carbon are improved, and the service life is prolonged; and due to the addition of the adsorption aids, the adsorbent has special porosity, the contact time between gas and the adsorbent is prolonged, and the effects of inhibiting bacteria and purifying the air are achieved. Therefore, the adsorption efficiency is high, the production process is simple, and the adsorbent is suitable for industrial dry desulfurization, automobile exhaust desulfurization and daily air purification.

Description

technical field [0001] The invention relates to a desulfurization activated carbon and a preparation method thereof, in particular to a composite porous activated carbon flue gas adsorbent and a preparation method thereof. Background technique [0002] With the rapid development of society, environmental pollution is also becoming more and more serious, industrial waste gas, automobile exhaust, etc. are seriously perplexing human life. Sewage treatment, papermaking, petroleum processing, chemical fertilizer manufacturing, chemical fiber manufacturing and some chemical raw material manufacturing industries emit a large amount of flue gas, and the flue gas contains hydrogen sulfide, sulfur dioxide and other dust, which not only causes environmental pollution, but also easily leads to catalyst Poisoning and inactivation, so reducing sulfur emissions in industrial production has become one of the major problems to be solved in today's world industrial production. At present, ad...

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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.