جستجوی مقالات مرتبط با کلیدواژه « رآکتور ثابت بستر » در نشریات گروه « مهندسی شیمی، نفت و پلیمر »

SO2 Emissions from different industrial activities such as, production of electricity in power plants, the metallurgical and cement productions, to name a few, are undesired due to this chemical’s harmful effects. Many processes to reduce sulfur dioxide emissions have been developed. Amongst these processes, direct dry sorbent injection is a relatively simple and low-cost process. In the current study, a CFD investigation of the Direct Sulfation Process is presented. This model accounted for this process to take place in a fixed bed reactor. Effects of important operating conditions including the temperature, concentration and pressure were studied in this work. It was shown that these parameters significantly affected the process. Ultimately, obtained theoretical results were shown to be comparable with experimental data available in the literature. This research provided a complementary theoretical method to the existing experimental technique the former of which might be used for any process optimizations.

Dimethyl ether as a green fuel, has received growing attention due to environment pollution and energy supply problem. In this paper, DME synthesis from methanol dehydration is modeled at steady state condition. The process consists of an adiabatic fixed-bed reactor that coupled with a heat exchanger to the preheating of feed stream using outlet product from reactor. The reactor is modeled heterogeneously based on mass and energy conservation laws as well as auxiliary equations. The accuracy of proposed model is improved with comparison between simulation results and plant data. Also, DME production is maximized using manipulation of feed temperature and optimal temperature of feed is obtained.