作为泰国第七天然气处理厂项目的7台重要塔器之一，该双塔中的胺液循环塔，胺液循环量高达5020立方米每小时，是目前全球单列胺液循环量最大的装置，该塔高75.5米，最大内径6.28米，最大外径7.5米，是目前全球最高的再生系统单体塔器。

在设计过程中，CPECC西南分公司针对工艺复杂、以往工艺能耗高实际，设计“贫液+半贫液”两级脱碳工艺和富胺液液力透平设备，降低了电耗及导热油耗量，实现高效节能；他们通过优化管道及设备布置，实现了1000余块外部附件和垫板的优化组合，并首次将胺液低压闪蒸塔及再生塔采用锥段进行连接，上下重叠布置，解决了汽蚀余量高达25m的要求；采取加长桩基、外部涂漆、整体运输、整体起吊等工厂化预制、模块化建设方式，既保证了产品质量又保证了整个塔器的运输和整体起吊安全。

在吊装前中，CPECC西南分公司针对塔总高达75.5m、最大外径接近7.5m、总重达到721吨、现场水压重量达到2948吨的实际，多次组织业主、各参建单位对吊装方案进行了讨论审查和优化，编制了应急预案和应急处置措施，并进行了全面细致的安全技术交底及JSA分析，确保脱碳双塔一次吊装到位成功。

As one of the seven important towers of the seventh natural gas treatment plant project in Thailand, the amine liquid circulation tower in the twin towers, the amine liquid circulation capacity of up to 5020 cubic meters per hour, is currently the world's single largest amine liquid circulation device, the tower height of 75.5 meters, the maximum inner diameter of 6.28 meters, the maximum outer diameter of 7.5 meters, is currently the world's highest regeneration system single tower.

In the design process, CPECC Southwest Branch designed a two-stage decarburization process of "lean liquid + semi-lean liquid" and a hydraulic turbine with rich amine liquid in view of the complexity of the process and the high energy consumption of the previous process, which reduced the power consumption and heat conduction fuel consumption and realized high efficiency and energy saving. By optimizing the layout of pipelines and equipment, they realized the optimal combination of more than 1,000 external accessories and gaskets, and for the first time, the low pressure flash tower and the regeneration tower were connected by cone sections, overlapping up and down, and solved the requirement of up to 25m cavitation margin; Factory prefabrication and modular construction methods such as lengthening pile foundation, exterior painting, integral transportation, and integral lifting are adopted to ensure both product quality and transportation and lifting safety of the whole tower.

Before hoisting, CPECC Southwest Branch organized the owner and the participating units to discuss, review and optimize the hoisting plan for many times, and prepare emergency plans and disposal measures, considering the tower's total height of 75.5m, maximum outer diameter of nearly 7.5m, total weight of 721 tons, and on-site water pressure weight of 2,948 tons. And carried out a comprehensive and detailed safety technology disclosure and JSA analysis to ensure that the decarbonization of the twin towers in place a successful lifting.