Combining the unstable heat conduction in crystal layer with heat transfer of undeveloped slug flow in a vertical tube, a time-progression model of crystal layer growth in the bubble column crystallizer pipe is proposed, the calculation results from the numerical method agree well with the experimental data.

Concentration profile of TA in p-xylene oxidation bubble column reactors;

A mathematic model coupled mass-transfer and reaction to match bubble column reactor with outside circulation for liquid-phase catalytic oxidation of ethylene was established.

Bubble column reactor has its own strong points such as simple structure, low construction and operating cost, good heat transfer property.

Taking the bubbling tower of the flue gas desulfurization(FGD) system for 600 MW units in Taishan Power Plant and the spray tower of the FGD system for 660 MW units in Shajiao C Power Station for instance,this paper makes a comparative analysis of the bubbling tower and the spray tower in terms of their process,equipment parameters and operation features.

In the recent years,a lot of limestone-gypsum wet method flue gas desulfurization (FGD) facilities have been built up,commissioned or under construction,but over whelming majority of them employ the familiar spraying towers, while the people’s under standing of GT-121(bubbling tower) FGD technology is very limited.

Lime/Lime stone wet flue Gas Desulfurization(FGD) is a common proce ss to control SO2 emission,At the present home 600 MW and above 600 MW unit newly built all use Lime/Lime stone wet FGD process,and absorbed towers in wet desulfu rization process all use sprinkling tower and bubbling tower.