ChemCAD Simulation of Benfield Process to Remove CO2 from Natural Gas and Inspection of Temperature Profile of Key Units

Natural gas is one of the prime sources of fuel, industrial utility and raw material in the world. Due to the presence of unwanted substances (e. g. carbon dioxide, sulfur content) natural gas cannot be used directly without any kind of treatment. There are certain harmful components which must be brought under permissible limit to ensure safe operation. Sulfur, carbon dioxide and water are the components which need to be removed from the raw natural gas. Sulfur is corrosive and harmful to the environment. It also causes catalyst deactivation in processing plants. Carbon dioxide and water needs to be removed to ensure appropriate heating value of natural gas. There are many processes to remove carbon dioxide. Among them Benfield process is one of the widely used processes. The purpose of this is study is to study the carbon dioxide removal efficiency of Benfield process using well known process simulator ChemCAD. Also temperature profile of important unit operations will also be discussed in this study. This study will be very helpful for the proper operation of the carbon dioxide removal process