Comparison between domestic and imported desulfurization amine solutions.

:)Let me start with cars. I was fortunate enough to visit BMW’s assembly plant abroad. There is one detail I will always remember: when tightening screws, there was a rule specifying exactly how many turns – neither more nor less. Yet what I saw in the BMW assembly plant in Shenyang was complete randomness. Abroad, they treat their products as works of art. And how much is it per month in the domestic market? . . One is a craftsman, the other is a makeshift solution. . .

:)Let me start with cars. I was fortunate enough to visit BMW’s assembly plant abroad. There is one detail I will always remember: when tightening screws, there was a rule specifying exactly how many turns – neither more nor less. Yet what I saw in the BMW assembly plant in Shenyang was complete randomness. Abroad, they treat their products as works of art. And how much is it per month in the domestic market? . . One is a craftsman, the other is a makeshift solution. . .

Let’s start with the performance aspects: 1. Imported solvents are used at higher concentrations, resulting in reduced circulation rates and energy consumption； 2. Imported solvents can generally ensure that the hydrogen sulfide level in the purified exhaust gases remains below 20 ppm, while domestic solvents don’t necessarily achieve this. 3. There are also antioxidant and antifoaming properties, which are difficult to describe in words; only those who use them know about them ； Let’s discuss the mechanism next: In fact, the base component of both imported and domestic agents is MDEA, and the source of this MDEA base component is quite limited; in other words, the base component of domestic and imported agents might be the same. So what are the reasons for the differences in selectivity and absorption effects between imported and domestically produced agents? Personally, I think they are trace additives incorporated into the solvent; although their amount added is very small, they can significantly enhance the selectivity and absorption efficiency of the solvent. In other words, the additive functions as a catalyst; its addition suppresses the absorption of carbon dioxide while increasing the efficiency of hydrogen sulfide absorption. As for the principle behind the additives and their components, those are the truly most valuable trade secrets!

Many things are like this: they may seem similar in terms of their main components, but their performance and lifespan can differ greatly; there might be things we yet to understand

They are mainly import solvent suppliers; some of the information they provide is quite clear, especially regarding data – they offer detailed figures that make one believe them to be accurate. However, we don’t know whether these figures actually correspond to the reality on site, and I guess nobody does. Domestic solvents actually copy some of the design concepts of imported solvents; they may have made some innovations and adjustments regarding additives, but there is a lack of solid data to support them. Overall, certain aspects remain unclear, and it’s only possible to determine their effectiveness through actual use by users. In fact, there are some good (to say the least) solvent suppliers in the domestic market at present, and their approaches and practices are gradually moving closer to those of imported solvent suppliers, but they are still far from reaching a superior level. It is certain, however, that there are also good domestic solvents; let’s call them high-performance solvents for now. They have carried out some useful explorations in the area of blended solvents, and the industrial results are satisfactory, which has led to gradual recognition of these solvents. One last thing to mention is that the effectiveness of solvent use is also related to many other factors, such as the regeneration efficiency (solvent depletion), absorption temperature, and the purity of the solvent...

The explanation above reflects well the current situation of the desulfurization agent market