نتایج جستجو برای: blended amine mea mdea
تعداد نتایج: 35949 فیلتر نتایج به سال:
The present study evaluated the environmental impacts of post-combustion CO2 capture and recovery via membrane–gas absorption processes. We have used SimaPro v.9 packages with Ecoinvent v3.5 database employing two different methods, ReCiPe 2016 Endpoint (H) Midpoint (H), considering a fundamental methodological framework to determine most environmentally friendly experimental condition. Life cy...
the solubility of co2 in the primary, secondary, tertiary and sterically hindered amine aqueous solutions at various conditions was studied. in the present work, the modified kent-eisenberg (m-ke), the extended debye-hückel (e-dh) and the pitzer models were employed to study the solubility of co2 in amine aqueous solutions. two explicit equations are presented to evaluate the concentration of h...
Many efforts have been made to develop amine-based solid adsorbents for capture of CO2 by adsorption. Compared with the traditional process of absorption in aqueous solutions of amines, the adsorbents with amine immobilized in solids generally result in processes with lower capital and energy costs. The literature contains some experimental studies of CO2 adsorption in impregnated materials; ho...
OBJECTIVES The purpose of this research was to develop a simultaneous determination method for monoethanol-amine (MEA) and diethanolamine (DEA) in workplace air for risk assessment. METHODS The characteristics of the proposed method, such as recovery, quantitation limit, reproducibility and storage stability of the samples, were examined. RESULTS An air sampling cassette containing two sulf...
Carbon dioxide emissions are the largest greenhouse gases contributor, which is attributed to global warming. Therefore, capture of CO2 necessary, especially from large point sources. Post-combustion using chemical solvents most matured technology. In this paper, mixed methyldiethanolamine (MDEA) and piperazine (PZ) were studied potentially address some issues related use conventional monoethan...
Quantum chemistry computations with a semicontinuum (cluster + continuum) solvation model have been used to cure long-standing misprediction of aqueous carbamate anion energies in the industrially important CO2 + aqueous amine reaction. Previous errors of over 10 kcal mol(-1) are revealed. Activation energies were also estimated with semicontinuum modeling, and a refined discussion of the compe...
In this work, carbon dioxide (CO2) loading capacity of methyldiethanolamine (MDEA) solution promoted by potassium lysinate (KLys) was experimentally measured using a gas absorption setup at different concentrations and temperatures. The CO2 removal efficiency the MDEA + KLys investigated for CO2/N2 mixture computational fluid dynamic (CFD) simulations in hollow fiber membrane contactor (HFMC). ...
Methyldiethanolamine (MDEA) atau yang sering disebut amine memiliki rumus CH3N(C2H4OH)2 adalah suatu cairan kimia ketika dicampurkan dengan 50 % air mempunyai kemampuan untuk menyerap CO2 dari stream gas dan dapat dilepas kembali memanaskan sampai di atas suhu penguapan air. Amine banyak mengandung rich amine. Richamine dipanaskan tujuan menghilangkan kemudian lean Pengujian pada content ini ya...
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