Abstract Amine scrubbing with absorption and desorption is the most established technology for Acid Gas Removal (AGR) systems, but suffers from high regeneration energy requirements and, hence offers a good opportunity for more development. A simulation study has been carried out based on a local NGL plant data to evaluate the performance parameters for AGR systems along with energy and utility consumptions for all single alkanolamines (Primary, Secondary and Tertiary) as well as the MDEA/PZ amine blend with different concentrations. The ultimate aim of the study is to address the critical industrial limitations in AGR systems, understand the individual performance for each amine under the same conditions and to investigate the Benchmark amine blend (MDEA + PZ) to optimize the absorption process in terms of enhancing acid gas loading and lowering the regeneration energy consumption. Ten cases have been investigated under the same conditions, where MDEA/PZ with 20/10 wt% has shown a better performance among single amines and benchmark amine blend 29/1 wt%; it could save 8% in steam consumption, 45% in cooling water, 62% in Lean Amine Air cooler, 45% in pumping power and 38% in solvent circulation rate, in addition to enhancing acid gas absorption by 67%.

中文翻译：

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在酸性气体去除系统中提高气体负荷并降低能耗：基于真实 NGL 工厂数据的模拟研究

摘要 吸收和解吸胺洗涤是酸性气体去除（AGR）系统最成熟的技术，但再生能量要求高，因此提供了进一步发展的良好机会。已根据当地 NGL 工厂数据进行了一项模拟研究，以评估 AGR 系统的性能参数以及所有单链烷醇胺（一级、二级和三级）以及具有不同的 MDEA/PZ 胺混合物的能源和公用事业消耗。浓度。该研究的最终目的是解决 AGR 系统中的关键工业限制，了解相同条件下每种胺的单独性能，并研究基准胺混合物 (MDEA + PZ) 以优化吸收过程，以提高酸性气体负载和降低再生能耗。在相同条件下研究了 10 个案例，其中 20/10 wt% 的 MDEA/PZ 在单一胺和基准胺混合物 29/1 wt% 之间表现出更好的性能；可节省8%的蒸汽消耗、45%的冷却水、62%的贫胺空气冷却器、45%的泵功率和38%的溶剂循环率，同时提高67%的酸性气体吸收率。