In PTA production, which type of medium in the pipelines has the highest pressure?
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Hello everyone, I would like to ask which type of process pipeline in PTA production plants has the highest pressure, and what is that pressure level approximately. What determines this pressure rating? I think it’s probably the hydrogen pipeline that has the highest pressure, as the materials used in PTA plants include sulfuric acid, sodium hydroxide, PX, hydrogen, and LPG among others. It seems to be hydrogen, but I’m not entirely sure. Any senior who knows something about this could please give me some guidance; I would be extremely grateful!
Waiting online; I’m eager for guidance from some senior, desperately awaiting an answer. . .
For PTA, the grade is higher in the refining section; from the outlet of the high-speed pump to the reactor outlet, the grade remains high. In our plant, we use 304L material with a pressure rating of F (1500 lb). The reactor outlet section is made of Hastelloy, while the section before the hydrogen inlet has a pressure rating of 900 lb, and the section leading to the reactor has a pressure rating of 1500 lb
It is indeed the hydrogen side; the design pressure can reach 120 kilograms, for 2.1 million tons of PTA
There are several aspects: first, the feed to the reactor in the refining unit, which typically has a design pressure of around 110 kilograms; second, high-pressure steam, at 90 kilograms of pressure; third, the hydrogenation pipelines in the refining reactor
The highest should be the top shaft oil pipeline, over 200 Kg, 2500 pounds!
The section at the outlet of the sophisticated reactor is of the highest quality and comes at the highest price; it seems that no one in China is able to manufacture it
The process pipeline with the highest pressure is likely to be that of high-pressure steam; it comes from the boiler, and after temperature and pressure reduction, its pressure is 90 KG – which is quite high. . Hehe