Purification Technology Edition: One Question per Week [Third Week of September 2017]
Thread Content
Why is the methanol washing tower divided into an upper column and a lower column, and what is the theoretical basis for this? Answer: The main basis is the selectivity of solvent absorption, as hydrogen sulfide has a higher solubility in methanol than carbon dioxide. This allows hydrogen sulfide to be absorbed in the lower column. The heat of dissolution released during the absorption of hydrogen sulfide and thiocarbonic acid in that column is compensated by the desorption heat of carbon dioxide in methanol, thereby preventing an increase in temperature in the desulfurization section. It facilitates the absorption of hydrogen sulfide and thiocarbon. Activities in the coalification region: The most frustrating people or things http://bbs.hcbbs.com/thread-1845213-1-1.html
The main basis is the selectivity of solvent absorption, as hydrogen sulfide has a higher solubility in methanol than carbon dioxide; this allows hydrogen sulfide to be absorbed in the lower column. The heat of dissolution released during the absorption of hydrogen sulfide and thiocarbonic acid in that column is compensated by the desorption heat of carbon dioxide in methanol, thereby preventing an increase in temperature in the desulfurization section. It facilitates the absorption of hydrogen sulfide and thiocarbon.
The main basis is the selectivity of solvent absorption, as hydrogen sulfide has a higher solubility in methanol than carbon dioxide; this allows hydrogen sulfide to be absorbed in the lower column. The heat of dissolution released during the absorption of hydrogen sulfide and thiocarbonic acid in that column is compensated by the desorption heat of carbon dioxide in methanol, thereby preventing an increase in temperature in the desulfurization section. It facilitates the absorption of hydrogen sulfide and thiocarbon.
The main basis is the selectivity of solvent absorption, as hydrogen sulfide has a higher solubility in methanol than carbon dioxide; this allows hydrogen sulfide to be absorbed in the lower column. The heat of dissolution released during the absorption of hydrogen sulfide and thiocarbonic acid in that column is compensated by the desorption heat of carbon dioxide in methanol, thereby preventing an increase in temperature in the desulfurization section. It facilitates the absorption of hydrogen sulfide and thiocarbon.
The main basis is the selectivity of solvent absorption, as hydrogen sulfide has a higher solubility in methanol than carbon dioxide; this allows hydrogen sulfide to be absorbed in the lower column. The heat of dissolution released during the absorption of hydrogen sulfide and thiocarbonic acid in that column is compensated by the desorption heat of carbon dioxide in methanol, thereby preventing an increase in temperature in the desulfurization section. Favorable for the absorption of hydrogen sulfide and thionocarbene
The main basis is the selectivity of solvent absorption, as hydrogen sulfide has a higher solubility in methanol than carbon dioxide; this allows hydrogen sulfide to be absorbed in the lower column. The heat of dissolution released during the absorption of hydrogen sulfide and thiocarbonic acid in that column is compensated by the desorption heat of carbon dioxide in methanol, thereby preventing an increase in temperature in the desulfurization section. Favorable for the absorption of hydrogen sulfide and thionocarbene
The main basis is the selectivity of solvent absorption, as hydrogen sulfide has a higher solubility in methanol than carbon dioxide; this allows hydrogen sulfide to be absorbed in the lower column. The heat of dissolution released during the absorption of hydrogen sulfide and thiocarbonic acid in that column is compensated by the desorption heat of carbon dioxide in methanol, thereby preventing an increase in temperature in the desulfurization section. It facilitates the absorption of hydrogen sulfide and thiocarbon.
The main basis is the selectivity of solvent absorption, as hydrogen sulfide has a higher solubility in methanol than carbon dioxide; this allows hydrogen sulfide to be absorbed in the lower column. The heat of dissolution released during the absorption of hydrogen sulfide and thiocarbonic acid in that column is compensated by the desorption heat of carbon dioxide in methanol, thereby preventing an increase in temperature in the desulfurization section. It facilitates the absorption of hydrogen sulfide and thiocarbon.
The main basis is the selectivity of solvent absorption, as hydrogen sulfide has a higher solubility in methanol than carbon dioxide; this allows hydrogen sulfide to be absorbed in the lower column. The heat of dissolution released during the absorption of hydrogen sulfide and thiocarbonic acid in that column is compensated by the desorption heat of carbon dioxide in methanol, thereby preventing an increase in temperature in the desulfurization section. It facilitates the absorption of hydrogen sulfide and thiocarbon.
Taking advantage of the difference in solubility of CO2 and H2S in methanol, H2S is absorbed in the lower column while CO2 is absorbed in the upper column.
The main basis is the selectivity of solvent absorption, as hydrogen sulfide has a higher solubility in methanol than carbon dioxide; this allows hydrogen sulfide to be absorbed in the lower column. The heat of dissolution released during the absorption of hydrogen sulfide and thiocarbonic acid in that column is compensated by the desorption heat of carbon dioxide in methanol, thereby preventing an increase in temperature in the desulfurization section. It facilitates the absorption of hydrogen sulfide and thiocarbon.