采用化学清洗和空气爆破相结合的方法，清除换热器中由变换气及催化剂粉末等形成的垢物，降低换热器的阻力，提高热效。
Combining the chemical cleaning and air blasting method, this paper introduces a new method of removing the deposit resulting from the shift gas and catalyst powder, etc.
研究采用聚铝和聚铁作絮凝剂，并加入有机助凝剂，联合作用处理麦草爆破制浆废水的混凝效果。
The waste water from pulping of wheat straw was treated by using poly aluminum chloride (PAC), polymerized ferrous sulfate (PFS) and organic coagulant AIDS together.
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