การปรับปรุงประสิทธิภาพการใช้พลังงานในกระบวนการกำจัดแอสฟัลต์ด้วยตัวทำละลาย / สมชาย อัครารัตนพงศ์ = Improvement of energy consumption efficiency in solvent deasphalt process / Somchai Akararuttanapong
Solvent deasphalting process is first step in production of lube base oil. The process uses propane as a solvent. Products of the process consist of asphaltene as raffinate phase and deasphalting oil as extract phase. In order to improve purity of products, the solvent used in extraction process must be removed. Both streams are then purified by methods of heating by furnace. The objective of this work is to improve energy consumption efficiency by using two approaches. In the first approach, we develop a process model by using neural network. The model develop can be used to optimize the process by adjust oxygen excess, temperature of flue gas and composition of fuel. In the second approach, the optimal operating condition of heat exchanger is determine by the model develop in commercial software. Model of neural networks is used for predict efficiency of the furnace found that the accuracy performance was 99.7%. In the model of heat exchanger by Hysys programming can be reduced energy consumption for separation of solvent from product by 5.66 MM kcal / hr.