Engineering of imaging systems of materials in petrochemical reactors with gamma ray absorption techniques

Formation material contained in petrochemical reactor composed of ethylene gas, hydrogen gas and diluent, gas once it is processed at a pressure of 32 bar and a temperature of between 60°C to 100°C will produce hydrocarbons. The hydrocarbons die in the form of slurry with a density of between 600 gr/dm³ to 1200 gr/dm³ , In the uncontrolled process the hydrocarbons will clot and causing reactor operation stopped because clogged by the clot material. In order the material not to clot, it required imaging detection system that describes the condition of the material in the reactor. Nuclear application method to describe the condition of the material in the reactor is simply by gluing several gamma detector outside the walls of the reactor and placing a ¹³⁷Cs gamma sources amid type reactor process. It has been designed a prototype imaging system with the material in the petrochemical reactor gamma ray absorption technique composed of ¹³⁷Cs gamma radiation source which is placed in the middle of the reactor, while the gamma radiation that comes out of the gamma source detected by a detector located outside the vessel surrounding the process. There are 12 gamma detectors and the gamma radiation intensity received is proportional to the fluctuation of the material contained within the reactor process. The results of measurements of the twelve detectors are processed by computer to be its dynamic state information material in the reactor process, while the profile monitor display measurement results in the form of two dimensional topography. (author)