The issue of desulfurization in coking

1. What is the heat source for the reboiler at the bottom of the regeneration tower? Is the temperature too high? If the temperature of the heat source is too high, the temperature of some N-methyl-diethanolamine will become extremely high. It seems that N-methyl-diethanolamine begins to degrade at 168 degrees. 2. The high-efficiency composite desulfurizer developed by ******* Factory is a new generation of high-efficiency desulfurizer that was successfully created in collaboration with a research institute recently. This desulfurizer uses 14-oxazacyclotetraene as its main component, and it also incorporates activators, defoamers, polymerization inhibitors, and corrosion inhibitors. It is capable of effectively removing hydrogen sulfide (H2S), carbonyl sulfide (COS), and thiol compounds (RSH) from catalytic cracking dry gas, liquefied gas, and coking gas; it also exhibits good selectivity toward these sulfur-containing compounds, with a removal efficiency of over 70%. It boasts advantages such as stable chemical properties, low foaming, low degradation, minimal loss, fast reaction speed, and high sulfur capacity. It also exhibits good polymerization inhibition and corrosion inhibition properties, making it an excellent alternative to alcoholamine-based desulfurizers for improving the removal rates of organic sulfur and total sulfur.

The heat source is steam and a portion of demineralized water, with the bottom temperature of the regeneration tower controlled at a level not exceeding 120–125 degrees.

It seems that N-methyl-diethanolamine starts to degrade at 168 degrees!!

The temperature of the mixture of steam and deionized water should also not be too high; it is necessary to maintain appropriate temperatures at the bottom of the tower as well as at the heat source

Thermostable salts can be removed through external filtration using an amine solution, which is beneficial for the desulfurization effect.

It might be due to quality issues with the desulfurization agent; it is recommended to contact the manufacturer for help in finding a solution. Ask experts from related manufacturers to help solve it

Thermally stable salts cannot be used as desulfurization agents; it is necessary to install an amine-based purification system or replace the desulfurization agent regularly

Hello, my friend. Where are you from? Do you use desulfurization paste or sulfur for desulfurization? There is a great company in the northeast that produces desulfurization agents; contact me at 11-65-67-348 if you need any information