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Efficient heating furnace flue gas desulfurizer as well as preparation method and application thereof

A technology of desulfurization agent and heating furnace, which is applied in the field of flue gas desulfurization and purification, can solve the problems of corrosivity of blocked equipment, influence on surrounding residents, and inability to recycle, etc., and achieve the effect of low operating cost, low operating cost, and quick operation

Pending Publication Date: 2022-02-01
江西省杰夫环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For traditional limestone and gypsum flue gas desulfurization, it is first necessary to grind the limestone to a powdery size of 260-325 mesh. In this way, a grinding workshop must be built first, and multiple sets of equipment are required to carry out the process. The pollution and the noise pollution of the unit seriously affect the surrounding residents, and the environmental protection department does not allow it; the wet desulfurization process will produce a large amount of polluted water, and the humid environment is easy to cause blockage and is highly corrosive to the equipment. At the same time, the alkaline substances used The calcium base has no desorption effect, is easily saturated after adsorption, and cannot be recycled, and has a short service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 0.8gCu(NO 3 ) 2 Place in a beaker, add 10mL of water, stir and mix to obtain Cu(NO 3 ) 2 Mixture; 1.6gCaCO 3 Put it in a beaker, add 20mL of water, stir and mix, adjust the pH value to 12.3, and get CaCO 3 Mixed solution; take a 150mL beaker, add 4.8g X-type zeolite powder and CaCO 3 After the mixed solution was evenly stirred, it was heated to 110°C for 3 hours, and after standing still, the supernatant was poured out, and then the above-mentioned Cu(NO 3 ) 2Mixed solution, after stirring evenly, heated to 110°C for 3h, washed the treated zeolite powder, and then separated the solid from the liquid, added 0.4g binder to the solid and mixed evenly, dried at 105°C for 3h, and finally roasted at 600°C for 5h , to obtain the finished desulfurizer.

[0033] The relative crystallinity and BET specific surface area of ​​the above-mentioned finished desulfurizer and raw material X-type zeolite powder were measured by X-ray diffraction, and the result was: the relative c...

Embodiment 2

[0036] 0.8gCuCl 2 Place in a beaker, add 15mL of water, stir and mix to obtain CuCl 2 Mixed solution; put 1.6g CaO in a beaker, add 20mL water, stir and mix, adjust the pH value to 12.1 to obtain a CaO mixed solution; take a 150mL beaker, add 4.8g X-type zeolite powder and CaO mixed solution, and stir , heated to 110°C for 3h, after standing still, pour out the supernatant, then add the above CuCl 2 Mixed solution, after stirring evenly, heated to 110°C for 3h, washed the treated zeolite powder, and then separated the solid from the liquid, added 0.4g binder to the solid and mixed evenly, dried at 105°C for 3h, and finally roasted at 600°C for 5h , to obtain the finished desulfurizer.

[0037] The relative crystallinity and BET specific surface area of ​​the above-mentioned finished desulfurizer and raw material X-type zeolite powder were respectively measured by X-ray diffraction method and BET method. %, BET specific surface area is 555m from X zeolite powder before treat...

Embodiment 3

[0040] Put 0.8g CuO in a beaker, add 15mL of water, stir and mix to obtain a CuO mixture; add 1.6gCa(OH) 2 Place in a beaker, add 25mL of water, adjust the pH to 12.2, and get Ca(OH) 2 Mixed solution; take a 150mL beaker, add 4.8g X-type zeolite powder and Ca(OH) 2 After stirring the mixture evenly, heat it to 110°C and keep it for 3 hours. After standing still, pour out the supernatant, then add the above-mentioned CuO mixture, after stirring it evenly, heat it to 110°C and keep it for 3 hours. After washing, solid-liquid separation is carried out, the solid is added with 0.4g of binder and mixed evenly, dried at 105°C for 3h, and finally roasted at 600°C for 5h to obtain the finished desulfurizer.

[0041] The relative crystallinity and BET specific surface area of ​​the above-mentioned finished desulfurizer and raw material X-type zeolite powder were respectively measured by X-ray diffraction method and BET method. %, BET specific surface area is 525m from X zeolite powde...

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Abstract

The invention belongs to the technical field of flue gas desulfurization and purification, and particularly relates to an efficient heating furnace flue gas desulfurizer as well as a preparation method and application thereof. The preparation raw materials of the efficient heating furnace flue gas desulfurizer comprise the following components in parts by weight: 60-65 parts of zeolite powder, 5-10 parts of a copper base, 20-25 parts of a calcium base, 5-8 parts of an adhesive and 30-40 parts of water. The efficient heating furnace flue gas desulfurizer disclosed by the invention takes zeolite powder as an adsorbent and a carrier, the calcium base as a neutralizing agent and the copper base as a catalyzing, oxidizing and desulfurizing agent, is used for flue gas desulfurization of the heating furnace, and is high in desulfurization rate, capable of being regenerated repeatedly, long in service life, safe, reliable, free of secondary pollution, applicable to various flue gases and wide in applicability.

Description

technical field [0001] The invention belongs to the technical field of flue gas desulfurization and purification, and in particular relates to a high-efficiency heating furnace flue gas desulfurizer and its preparation method and application. Background technique [0002] SO in heating furnace flue gas 2 It contains a certain amount of acidity in nature, and can remove SO from flue gas through the reaction of alkaline substances such as calcium carbonate, calcium oxide or calcium hydroxide 2 . Calcium Carbonate CaCO 3 As an adhesive, reinforcing agent, neutralizing agent, and foaming agent, it is also called quicklime; calcium oxide CaO is an alkaline oxide that can absorb CO 2 , strong moisture absorption capacity, to purify waste water, gas, etc.; calcium hydroxide Ca(OH) 2 Also known as slaked lime, it is alkaline, can reduce acidity, and has the functions of suction, filtration, and precipitation of gas-liquid phase impurity sulfur. [0003] At present, most experts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/50B01D53/60C02F11/00C02F103/20
CPCB01D53/8609B01D53/8637B01D53/82B01D53/83B01D53/96C02F11/00B01D2258/0283B01D2253/108B01D2251/404B01D2255/20761C02F2103/20
Inventor 黄德金李艳辉张合正杨毅
Owner 江西省杰夫环保科技有限公司