Analysis of acid gas injection projects underway in North America, and in Western Canada in particular, show that disposal of H2S into depleted reservoirs may have already reached levels that begin to affect sulphur supply from that region.

Time-dependent reliability of existing structure in acid gases;

As one of substitutes for fire-extinguishing agent of halogenated hydrocarbon,fire-extinguishing agent of halogenated hydrocarbon produces lots of acid gases.

It is concluded that acid gases corroding concrete involved the three respects: carbonation, sulphate corroding and acid corroding.

The pseudo critical parameters of sour gas are calculated mostly by Kay rule and Wichert-Aziz correction, but the sour gas density-based method has not been published at home.

The partial pressures of H 2S and CO 2 are high, which usually reaches the limit of sour gas, since the pay-zone pressure is high.

The application of traditional classical equation of state to calculate the physical property parameters of gas mixture in sour gas reservoir will bring out relatively great deviation.

Research progress in ionic-liquid absorbent for acidic gases removal

The low temperature methanol cleaning process has characteristics of good selectivity and high degree of purification, and strong absorption,low energy consumption and operating costs,comparing with other acidic gas purification process.

Results show that as follows:(1) the purification efficiency of acidic gases has been enhanced along with increasing the stochiometric ratio;(2)increasing the coburning ratio of MSW and coal,the purification efficiency of SO_2 to be enhanced;(3)the smaller the near adiabatic saturation temperature,the greater purification efficiency of acidic gases.