当前位置：
X-MOL 学术
›
Ind. Eng. Chem. Res.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Evaluating CO2-Desorption Performance of Solid Acid Catalysts in CO2-Loaded Aqueous Solutions of N-Ethylethanolamine
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2023-06-12 , DOI: 10.1021/acs.iecr.3c00141 Hitesh D. Rawate 1 , Prakash D. Vaidya 1
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2023-06-12 , DOI: 10.1021/acs.iecr.3c00141 Hitesh D. Rawate 1 , Prakash D. Vaidya 1
Affiliation
|
Postcombustion CO2 capture will be more attractive if the regeneration energy constraint of amine-based solvents is lowered. Metal oxides catalyze CO2 desorption, thus resulting in efficient amine regeneration. The catalytic regeneration of the N-ethylethanolamine (EEA) solvent was investigated in this study using 10 commercially available metal oxide catalysts. Batch trials were performed with EEA (2.5 M) in a glass apparatus at T = 368 K. The initial CO2 loading was in the 0.32–0.35 mol CO2/mol EEA range. The impact of different catalysts on the regeneration process was evaluated. The catalysts improved the efficiency of CO2 desorption over its value in blank EEA in the following order: Al2O3 (167%) > CuO (104%) > MnO2 (101%) > V2O5 (96%) > TiO2 (65%) > ZnO (61%) > Cr2O3 (50%) > SiO2 (49%) > MgO (46%) > ZrO2 (40%). The effect of changing Al2O3 catalyst loading (between 3 and 12 g Al2O3/400 mL solution) on the desorption features of EEA (1.67 M) was insignificant. It was found that Al2O3 enabled desorption at lower temperatures (338 K) and reduced the sensible energy constraint by 38%. For the case when ZrO2 was impregnated with SO42–, the CO2 desorption efficiency increased in addition by 15% and sensible energy consumption decreased by 25%.
中文翻译：
评估固体酸催化剂在负载 CO2 的 N-乙基乙醇胺水溶液中的 CO2 解吸性能
如果胺基溶剂的再生能量限制降低，燃烧后CO 2捕获将更有吸引力。金属氧化物催化CO 2解吸，从而实现有效的胺再生。本研究使用 10 种市售金属氧化物催化剂研究了N-乙基乙醇胺 (EEA) 溶剂的催化再生。在T = 368 K的玻璃装置中使用 EEA (2.5 M) 进行批量试验。初始 CO 2负载量在 0.32–0.35 mol CO 2 /mol EEA 范围内。评估了不同催化剂对再生过程的影响。该催化剂提高了CO 2的效率空白EEA中解吸值的顺序如下：Al 2 O 3 (167%) > CuO (104%) > MnO 2 (101%) > V 2 O 5 (96%) > TiO 2 (65%) > ZnO(61％)>Cr 2 O 3 (50％)>SiO 2 (49％)>MgO(46％)>ZrO 2 (40％)。改变 Al 2 O 3催化剂负载量（3 至 12 g Al 2 O 3 /400 mL 溶液）对 EEA (1.67 M) 解吸特征的影响不显着。研究发现Al 2 O 3能够在较低温度（338 K）下解吸，并将显能约束降低 38%。对于ZrO 2浸渍SO 4 2–的情况，CO 2解吸效率另外提高了15%，显能耗降低了25%。
更新日期：2023-06-12
中文翻译：
评估固体酸催化剂在负载 CO2 的 N-乙基乙醇胺水溶液中的 CO2 解吸性能
如果胺基溶剂的再生能量限制降低，燃烧后CO 2捕获将更有吸引力。金属氧化物催化CO 2解吸，从而实现有效的胺再生。本研究使用 10 种市售金属氧化物催化剂研究了N-乙基乙醇胺 (EEA) 溶剂的催化再生。在T = 368 K的玻璃装置中使用 EEA (2.5 M) 进行批量试验。初始 CO 2负载量在 0.32–0.35 mol CO 2 /mol EEA 范围内。评估了不同催化剂对再生过程的影响。该催化剂提高了CO 2的效率空白EEA中解吸值的顺序如下：Al 2 O 3 (167%) > CuO (104%) > MnO 2 (101%) > V 2 O 5 (96%) > TiO 2 (65%) > ZnO(61％)>Cr 2 O 3 (50％)>SiO 2 (49％)>MgO(46％)>ZrO 2 (40％)。改变 Al 2 O 3催化剂负载量（3 至 12 g Al 2 O 3 /400 mL 溶液）对 EEA (1.67 M) 解吸特征的影响不显着。研究发现Al 2 O 3能够在较低温度（338 K）下解吸，并将显能约束降低 38%。对于ZrO 2浸渍SO 4 2–的情况，CO 2解吸效率另外提高了15%，显能耗降低了25%。
京公网安备 11010802027423号