... . It is also a kind of trace water desiccant and the pole-molecular absorbent, according to the absorbed molecular polarization, the ... deep drying of cracked gas, ethylene and propylene, hydrogen-generation, air separation, instrument air drying and fluorine treatment for H2O2, also ... the absorbing pollution material, such as H2S, SO2, HF and paraffin in the water gas, especially in the drinking water ...