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Deodorant for compatibility of RDF and application thereof

A technology of deodorant and polymer adhesive is applied in the field of garbage deodorant and its preparation, which can solve the problems of high requirements on culture conditions, unsuitable garbage-derived fuel deodorization, long action time, etc., and achieves improved deodorization. The effect of the smell effect

Pending Publication Date: 2021-03-12
李洪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantages of the microbial method are low cost, no toxic side effects, long-lasting effect and no secondary pollution, but the disadvantage is that the action time is long, and it has high requirements for environmental culture conditions such as temperature and pH.
The combustion method uses high-temperature combustion to decompose odorous substances, but this method itself is not suitable for deodorization of waste-derived fuels

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034]The deodorant of the present embodiment is prepared by the following steps: (1) pulverizing agricultural and forestry wastes mainly containing branches into chips with an average particle size of 3 cm, then pyrolyzing the chips, and passing the flue gas generated by the pyrolysis into Enter the water, aerate for 10 hours to obtain a pale yellow wood vinegar crude liquid; the pyrolysis conditions are: first at 150 ° C - 160 ° C for 2 hours, then at 250 ° C - 260 ° C for 4 hours, and finally at 400 ° C. ℃-450 ℃ maintained for 4 hours, the excess air coefficient was 0.5; (2) the wood vinegar crude liquid and the macromolecular binder were 1.5wt% polymer adhesive, the remainder of the wood vinegar crude liquid in the weight ratio at room temperature Mixed evenly, the polymer binder is formed by mixing modified starch and modified cellulose in a weight ratio of 2:1, thereby preparing deodorant 1.

Embodiment 2

[0036] The deodorant of the present embodiment is prepared by the following steps: (1) pulverizing agricultural and forestry wastes mainly containing branches into chips with an average particle size of 3 cm, then pyrolyzing the chips, and passing the flue gas generated by the pyrolysis into Enter the water, aerate for 12 hours to obtain a pale yellow wood vinegar crude liquid; the pyrolysis conditions are: first at 150 °C-160 °C for 2 hours, then at 250 °C-260 °C for 5 hours, and finally at 400 °C ℃-450 ℃ maintained for 5 hours, the excess air coefficient was 0.4; (2) the wood vinegar crude liquid and the polymer binder were at room temperature in the weight ratio of 1.5wt% polymer binder and the remaining wood vinegar crude liquid Mixed evenly, the polymer binder is prepared by mixing modified starch and modified cellulose in a weight ratio of 2:1, thereby preparing deodorant 2.

Embodiment 3

[0038] The deodorant of the present embodiment is prepared by the following steps: (1) pulverizing agricultural and forestry wastes mainly containing branches into chips with an average particle size of 3 cm, then pyrolyzing the chips, and passing the flue gas generated by the pyrolysis into Poured into water and aerated for 8 hours to obtain a pale yellow wood vinegar crude liquid; the pyrolysis conditions are: first at 150°C-160°C for 1.5 hours, then at 250°C-260°C for 2.5 hours, and finally at 400°C ℃-450 ℃ maintained for 4 hours, the excess air coefficient was 0.5; (2) the wood vinegar crude liquid and the polymer binder were mixed at room temperature according to the weight ratio of 2wt% polymer binder and the remaining wood vinegar crude liquid Evenly, the polymer binder is mixed with starch, dextrin and polyvinyl alcohol in a weight ratio of 2:1:1, thereby preparing deodorant 3.

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Abstract

The present invention provides a cost-effective deodorant suitable for deodorization of refuse derived fuel (RDF). The cost-effective deodorant suitable for deodorization of the refuse derived fuel isprepared by the following steps of: (1) pyrolyzing forestry and agricultural residues, introducing flue gas generated by pyrolysis into water, and aerating the forestry and agricultural residues for5-8h to prepare a faint yellow wood vinegar crude solution; and (2) uniformly mixing the wood vinegar crude solution with a polymer adhesive according to a weight ratio of 0.05%-5wt% of the polymer adhesive and the balance of the wood vinegar crude solution at normal temperature to prepare the deodorant.

Description

technical field [0001] The invention relates to garbage disposal technology, in particular to a garbage deodorant and a preparation method thereof. Background technique [0002] Refuse Derived Fuel (Refuse Derived Fuel, RDF for short) technology is a technology that filters out incombustibles from shredded garbage (usually municipal solid waste), and then removes the remaining combustibles (with waste plastics and paper scraps as waste). Mainly) waste treatment technology to make fuel by optional further pulverization and drying. The advantage of this waste treatment technology is that the calorific value of the waste is increased by about 4 times, and RDF is easy to transport and store, so a part of the waste can be temporarily stored as RDF to solve the problem of boiler technology outage or waste production due to peak seasons. The problem of disposal capacity during peak periods makes garbage disposal more flexible in space and time and easier to manage. Chinese patent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G5/027F23G5/033F23G5/04C10C5/00C02F11/00
CPCF23G5/027F23G5/033F23G5/04C10C5/00C02F11/00C02F2303/02Y02E50/10
Inventor 汤广武李洪
Owner 李洪