Influence of Natural Gas DRA on the Operation Safety of Gas Pipeline

The influence of natural gas BIB DRA on internal wall of gas pipeline was investigated by corrosion testing and weight-loss method, and at the same time the influence of DRA's raw materials, intermediates and solvent on the internal wall was also investigated.Potentiodynamic polarization curves of pipe wall specimen in different BIB DRA proportions were obtained by electrochemical testing.Simultaneously, the self-corrosion potential, self-corrosion current density and polarization resistance in different BIB DRA proportions were gained through computer curve fitting.And finally, the electrochemical regularity for natural gas DRA on internal wall of pipeline was summarized.By combustion experiment, the influence of natural gas DRA s on gas quality was researched And by stirring experiment, the influence of natural gas DRA on the desulfuration/decarbonization solution and dehydration systems at downstream treatment process was also studied preliminarily, Research showed that BIB natural gas DRA had no bad effects on pipeline operation.