The hydrochloric acid falling film absorber fails to reach its designed capacity
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This post was last edited by sunjl1981 on 2013-1-6 at 21:45. Our facility has newly installed a hydrochloric acid falling film absorber with a designed capacity of up to 2.5 m3/h of water to be absorbed. After it was put into operation, when the water flow rate reached 1 m3/h, the absorption efficiency declined and the acid concentration produced did not meet the required standards. The acid temperature at the bottom of the exhaust gas absorption tower reaches 60 degrees. It is common for the temperatures of the tail tower and absorption tower to exceed the specified limits, making it difficult to control the acid concentration; as a result, production volume cannot be increased! I would like to ask fellow sailors if anyone has experience in this area and can share some tips to help solve this problem! hcbbs !! . hcbbs
The cooling effect is poor; check the cooling system for any blockages or scaling, lower the temperature of the cooling water, increase the pressure of the cooling water, and clean it； The inability to increase the water absorption amount is likely due to a problem with the falling film absorption section.
Without knowing the detailed specifications of your equipment and the specifics of the processing conditions, I dare not rashly assume that it is a problem with the design or the equipment. First, check whether there are any issues with the installation of your falling film absorber, such as its verticality and whether the cooling water supply is appropriate. It seems, depending on the circumstances, your exhaust tower is taking on the main role.
This post was last edited by swl on 2012-7-2 at 17:46. Based on the information provided by the original poster, this phenomenon is caused by abnormal operation of the falling film absorber. The possible reasons for this include: 1. Issues with the installation (commissioning) of the falling film absorber； 2. The cooling effect of the falling film absorber is poor ； 3. The process piping between the falling film absorption tower and the exhaust gas absorption tower is installed improperly ；