The results show that when the nitrogen content is decreased, the yield strength of hot rolled plate decreases, which meets the requirement of cold-rolled base stuff.
指出了钢中氮质量分数的减少可降低热轧板屈服强度，且满足供冷轧基料的要求。
2
The etherification process of FCC light gasoline meets the requirement of producing clean gasoline, while the basic nitrogen compounds can deactivate the etherification catalyst-sulfonic acid resin.
The process of naked cooling with nitrogen cycle refrigeration was proposed according to the producing requirement, followed by some points to note during the naked cooling process.