What to do if the sulfur content in the hydrogenation unit is too high?
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We keep the sulfur content in our hydrogenation unit below 150 ppm; however, the sulfur content in the feedstock exceeds 300 ppm. What should we do in this situation?
Then stop feeding sulfur into the system; if the sulfur content in the feed oil is high, a reaction will occur.
Control the sulfur content of the raw materials; use raw materials with low sulfur content in doping. To control the sulfur content of the product, increase the operating pressure and temperature, as well as improve the purity of hydrogen
Increase the temperature to enhance reaction depth and control the sulfur content of the product.
Anything below 150 ppm is definitely considered unqualified. We keep it all below 10 ppm.
The most effective measure is to increase the operating temperature
Is there still a market for National III products? The sulfur content is not up to standard; increase the reaction depth, check the reactivity of the reaction, ensure that the sulfur content in the raw materials does not exceed the allowed limit – if that’s not possible, reduce the amount used
Raw materials? 300PPM is the final product, right? Increasing the reaction depth – if all methods have been tried, the only option left is to replace the catalyst
10 is National V standard, 350 is PuChai engine; 50 is National IV standard. I really don’t know about 150
Everyone has already adopted National Standard V; why is your sulfur content still so high?
Control the sulfur content of the feed oil, increase the reaction depth, and pay attention to the hydrogen sulfide concentration in the recycled hydrogen. . .