03 اسفند 1402
بابك عاقل

بابک عاقل

مرتبه علمی: دانشیار
نشانی: ایران، کرمانشاه، بزرگراه امام خمینی (ره)، دانشگاه صنعتی کرمانشاه، دانشکده انرژی، گروه مهندسی شیمی
تحصیلات: دکترای تخصصی / مهندسی شیمی
تلفن: 083-38305000 (1168)
دانشکده: دانشکده مهندسی

مشخصات پژوهش

عنوان
Optimization of monoethanolamine for CO2 absorption in a microchannel reactor
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
Microchannel Absorption MEA CO2
پژوهشگران بابک عاقل (نفر اول)، احسان حیدریان (نفر دوم)، ساسان صحرایی (نفر سوم)، منا نظری (نفر چهارم)

چکیده

In this study, CO2 absorption was performed using a MEA aqueous solution in a circular microchannel, with a diameter of 800 μm and a length of 25 cm. All experiments were carried out at atmospheric pressure with a concentration of 10% molar CO2 in the feed gas. The operational variables were temperature (15–55 °C), input solvent flow rate (0–0.04 l min−1), inlet gas flow rate (1–9 l.min−1), and MEA concentration in the solvent (0–40 wt.%). The results showed that by increasing the concentration of MEA in the solvent, and increasing the solvent flow rate, a significant increase occurred in the absorption percentage and overall gas-based volumetric mass transfer coefficient. Increasing the gas flow rate also caused a reduction in the absorption percentage and an increase in the overall gas-based volumetric mass transfer coefficient. However, the operating temperature within a range of 15–55 °C did not have a significant impact on absorption rate. In optimal operating conditions, the absorption percentage was 100%, and the overall gas-based volumetric mass transfer coefficient of 2685 (kmol h−1 m-3 kPa−1) was reached. The overall gas-based volumetric mass transfer coefficient indicates that, compared with other mass transfer devices, the use of a microchannel-reactor resulted in a higher level of increase in absorption efficiency.