Tipping the Scale in LNG Plant Design: Considerations for Train Size, Driver Selection, and Adopting Digitalization

D. Guccione, M. Russell
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引用次数: 1

Abstract

In recent years, there has been a great deal of discussion surrounding the topic of mid-scale vs. large-scale liquefaction trains in LNG export facilities. While in some select cases, mid-scale trains (0.5 – 2 million tonnes per year (typ)) may offer commercial, executional, and financial advantages, the decision is not a simple matter of one-size-fits-all, as large trains (>3 million tpy) offer economies of scale, among other benefits. As this paper will explain, choosing a solution that delivers the most value over the life of a facility is contingent on the operator's specific objectives and circumstances. Ultimately, train size and liquefaction licensor selection have only a marginal impact on project capital costs as long as the total facility achieves a minimum of 8 million tpy (Russell, 2018). The paper will offer objective cases for building both mid- and large-scale trains and outline key areas for project stakeholders to consider when making an informed decision regarding capacity and liquefaction licensor. It will also discuss important considerations for optimizing LNG plant design, such as mechanical driver selection, modularization, and the incorporation of digital technologies. The paper will conclude by discussing the importance of adopting a holistic strategy that integrates the entire gas value chain when attempting to drive out costs, minimize risk, and maximize overall project economics.
液化天然气工厂设计中的天平倾斜:列车规模、驾驶员选择和采用数字化的考虑
近年来,围绕LNG出口设施中中型与大型液化列车的话题进行了大量讨论。虽然在某些特定情况下,中型列车(每年50 - 200万吨)可能提供商业、执行和财务优势,但决定不是一个简单的一刀切的问题,因为大型列车(> 300万吨/年)提供规模经济,以及其他好处。正如本文所解释的,在设施的生命周期中,选择一种能够提供最大价值的解决方案取决于作业者的具体目标和情况。最终,只要总设施达到至少800万吨/年,列车规模和液化许可方的选择对项目资本成本只有边际影响(Russell, 2018)。本文将提供建造中型和大型列车的客观案例,并概述项目利益相关者在做出有关能力和液化许可方的明智决策时需要考虑的关键领域。本文还将讨论优化LNG工厂设计的重要考虑因素,如机械驱动器的选择、模块化和数字技术的结合。最后,本文将讨论在试图降低成本、降低风险和最大化整体项目经济效益时,采用整合整个天然气价值链的整体战略的重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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