In the adaptability of a proposed cascade-scrubbing technology used for ocean ships, ASPEN PLUS desulfurization simulations for a packing scrubber of a 10 000-kW large-scale marine diesel engine were performed to uncover effects of the scrubber's configurational parameters (i.e., scrubber diameter, spherical packing diameter, and packing thickness) and meanwhile confirm the selected parameters' availability. Desulfurization was evaluated not only under the once-through open-loop model with varying above scrubber's configurational parameters plus operational seawater temperature and scrubbing section's inlet gas temperature but also under the seawater/lye cascade-scrubbing model for confirming its availability and superiority in saving both the seawater and lye consumption. Desulfurization exhibits increase, decrease, and slight increase trends with the packing thickness, packing diameter, and scrubber diameter, respectively. However, the packing-layer pressure drop increases with the packing thickness and decreases initially but then varies little with the left two parameters. Any increase in these temperatures weakens desulfurization. A comprehensive consideration of multiple factors suggests that the selected packing diameter of 50 mm, total packing thickness of 3.5 m, and scrubber diameter of 2.8 m are reasonable and adaptable to the scrubber, which can comply with the required strict desulfurization standard by using the low-alkalinity seawater (1.42 mmol/L) to scrub the high-sulfur gas (fuel-sulfur content of 3.5%) with a moderate liquid/gas ratio of about 6.5 L/Nm³. Under the same gas and seawater conditions, the seawater/lye cascade-scrubbing model achieves about 38% and 90% reduction respectively in the seawater and alkali consumption as comparing with the once-through open-loop and closed-loop models, respectively.

中文翻译：

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带填料洗涤的大型船用柴油机洗涤器的脱硫性能：基于 ASPEN PLUS 模拟的设计参数验证

在提出的用于远洋船舶的级联洗涤技术的适应性方面，对 10 000 kW 大型船用柴油发动机的填料洗涤器进行了 ASPEN PLUS 脱硫模拟，以揭示洗涤器配置参数（即洗涤器直径）的影响、球形填料直径和填料厚度），同时确认所选参数的可用性。不仅在直流开环模型下评估了脱硫器的配置参数加上操作海水温度和洗涤段的入口气体温度，而且还在海水/碱液级联洗涤模型下进行了评估，以确认其可用性和优越性。海水和碱液的消耗。脱硫呈现增加、减少、和填料厚度、填料直径和洗涤器直径分别有轻微增加的趋势。然而，填料层压降随着填料厚度的增加而增加，最初减小，但随后随左两个参数变化很小。这些温度的任何增加都会削弱脱硫作用。综合考虑多方面因素，所选填料直径为50 mm，填料总厚度为3.5 m，洗涤塔直径为2.8 m，合理且与洗涤塔相适应，可满足要求的严格脱硫标准。 - 碱度海水 (1.42 mmol/L) 以约 6.5 L/Nm 的中等液气比洗涤高硫气体（燃料硫含量为 3.5%）分别。然而，填料层压降随着填料厚度的增加而增加，最初减小，但随后随左两个参数变化很小。这些温度的任何增加都会削弱脱硫作用。综合考虑多方面因素，所选填料直径为50 mm，填料总厚度为3.5 m，洗涤塔直径为2.8 m，合理且与洗涤塔相适应，可满足要求的严格脱硫标准。 - 碱度海水 (1.42 mmol/L) 以约 6.5 L/Nm 的中等液气比洗涤高硫气体（燃料硫含量为 3.5%）分别。然而，填料层压降随着填料厚度的增加而增加，最初减小，但随后随左两个参数变化很小。这些温度的任何增加都会削弱脱硫作用。综合考虑多方面因素，所选填料直径为50 mm，填料总厚度为3.5 m，洗涤塔直径为2.8 m，合理且与洗涤塔相适应，可满足要求的严格脱硫标准。 - 碱度海水 (1.42 mmol/L) 以约 6.5 L/Nm 的中等液气比洗涤高硫气体（燃料硫含量为 3.5%）这些温度的任何增加都会削弱脱硫作用。综合考虑多方面因素，所选填料直径为50 mm，填料总厚度为3.5 m，洗涤塔直径为2.8 m，合理且与洗涤塔相适应，可满足要求的严格脱硫标准。 - 碱度海水 (1.42 mmol/L) 以约 6.5 L/Nm 的中等液气比洗涤高硫气体（燃料硫含量为 3.5%）这些温度的任何增加都会削弱脱硫作用。综合考虑多方面因素，所选填料直径为50 mm，填料总厚度为3.5 m，洗涤塔直径为2.8 m，合理且与洗涤塔相适应，可满足要求的严格脱硫标准。 - 碱度海水 (1.42 mmol/L) 以约 6.5 L/Nm 的中等液气比洗涤高硫气体（燃料硫含量为 3.5%）³ . 在相同的气体和海水条件下，海水/碱液梯级洗涤模型与直流开环和闭环模型相比，海水和碱消耗量分别减少了约38%和90%。