By measuring acidity of not-dried and dried Amin C Acid,the dew point of waste gas released from the drier is calculated,which indicates that the waste gas locates within the region of acid dew point.

• 提出并研究了由硫酸蒸汽、水蒸汽及干空气组成的混合气中各组份含量与水、酸露点间的关系,通过对氨基C酸干燥前后酸度的测量,计算出了干燥尾气中水、酸露点。