One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 442
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Fill-in-the-blank: VCM salt, acid; conventional desorption system, desorption tower, reboiler used for heating in order to desorb HCl from 31% acid; acid concentration after desorption is %； The deep desorption system uses a boiling point depressant, with temperature control at °C. Answer: Steam, 20--24% ； Calcium chloride, 136--143℃
Steam, 20--24%； Calcium chloride, 136--143℃
Steam, 20--24%； Calcium chloride, 136--143℃
VCM salts are subjected to desorption using a conventional acid desorption system; a reboiler is employed along with steam for heating, thereby enabling the desorption of HCl from 31% acid. The concentration of salts and acid after desorption is %； The deep desorption system uses a boiling point depressant, with temperature control at °C.
VCM salts are subjected to desorption using a conventional acid desorption system; a reboiler is employed along with steam for heating, thereby extracting HCl from the 31% acid. After desorption, the concentration of salts and acid is 20-24%； The deep desorption system uses calcium chloride as a boiling point depressant, with the temperature controlled at 136–143°C.
Steam, 20--24%； Calcium chloride, 136--143℃
VCM salts are subjected to desorption using a conventional acid desorption system; a reboiler is employed along with steam for heating, thereby enabling the desorption of HCl from 31% acid. The concentration of salts and acid after desorption is %； The deep desorption system uses a boiling point depressant, with temperature control at °C.
Reboiler Less than Over 110
Steam, 20--24%； Calcium chloride, 136--143℃