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Ammonia gas absorption tower

Country/Region china
Company Hebei Derunze Chemical Equipment Co.,Ltd
Categories Gas Absorption Tower
Telephone 0318 7972537
ICP License Issued by the Chinese Ministry
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    Ammonia gas absorption tower

    Deamination system

    Ammonia gas absorption tower

    Environmental protection series product---deamination system
    Adopted Beijing University of Chemical Technology patented technology-----energy-efficient coupling steam stripping deamination technology scheme,is put the steam stripping deamination technology,sulfuric acid absorption technology,steam circulating technology and multiple-effect evaporation technology into coupling,put the largest extent to use system heat,reduce the steam unit consumption of waste water treatment.At the same time to solve the enterprise ammonia nitrogen emission problem,also reduce the enterprise running cost,improve the enterprise economic benefit.

    The energy-efficient coupling steam stripping deamination technology’s technology characteristic is low steam consumption,exit deamination water ammonia nitrogen content low,easy to operate the system,easy to adjustment.This technology had already got the successful application in Sinopec catalyst Qilu branch company,Sinopec catalyst Changling branch company,Weifang Lvba Chemical Co.,Ltd,Fujian Longyan Longhua Chemical Co.,Ltd,Fujian Rongchang Chemical Co.,Ltd,Zhongxin Jinzhou Fanye Co.,Ltd,Hebei Iron Group Chengde branch company,Quzhou Juhua JInlun Co.,Ltd ammonia nitrogen waste water treatment project.

    Technological process explain
    Use liquid caustic soda to put the ammonia-wastewater PH valve adjust to 11,then transport into steam stripping deamination tower.
    Steam stripping deamination tower use common pressure to operating,operating temperature 110℃.Choose steam circulating process to ammonia-wastewater do steam stripping deamination.
    In the steam stripping deamination tower,the ammonia-wastewater that transport into tower downward flow,contact with the circulating steam and supplement steam countercurrent from the tower bottom,the ammonia content in the water reduced little by little,on the stage of steam stripping got the deamination ammonia water that the ammonia content less than 5mg/L
    The deamination water water discharge the deamination system from the tower bottom pump,outlet water temperature is 100℃.
    From the top of the steam stripping deamination discharged the steam which including ammonia through the steam circulating fan transport into the bottom of the ammonia gas absorption tower,use sulfuric acid to absorb the ammonia,to make into ammonium sulfate.The steam which through the deamination and purification back to steam stripping deamination to recycling.
    The ammonia gas absorption tower continuous to supplied the dilute sulfuric acid to absorb the ammonia,then produce the ammonium sulfate solution back into the ammonium sulfate tank,then should be delivery the ammonium sulfate regularly.
    Main equipment introduction:
    1. Steam stripping deamination tower:equipment main body material Q345R,tower inner parts material 304
    2.Ammonia gas absorption tower:operating temperature:110℃,maximum using temperature:120℃.
    3.The material characteristic:upper tower :solution that 30% sulfuric acid and high temperature ammonium sulfate;middle tower body:ammonium sulfate solution including acid and any parts of steam which including ammonia;bottom of tower:acidity ammonium sulfate solution and steam including ammonia,the concentration of the sulfuric acid is 0-30%,the concentration of the ammonium sulfate is 200-450g/L,the ammonia gas content in the steam is 4.5%.
    4.Special structure design:
    For the medium in the tower the temperature of the ammonia steam,dilute sulfuric acid had already reached and beyond the resin used temperature.Through the long time grope and test,we tested and finished the formula of improve the resin corrosion resistant and temperature resistant,and got the verification.In the resin we add the temperature resistant filler to improve the resistant temperature of ammonia steam and dilute sulfuric acid,and also got the verification.This method make the FRP temperature resistant improve the higher level.
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