Electrification of industrial processes is one of the frequently discussed options to reduce greenhouse gas emissions from energy-intensive industries. This paper presents a bottom–up framework to assess process electrification options for energy-intensive industrial process plants in terms of greenhouse gas emissions and energy costs. The framework is based upon pinch analysis energy targetting methods, and accounts for site-specific conditions, including the effects on heat recovery potential and overall mass and energy balances. Furthermore, interactions between the process site and the background energy system are considered and scenarios are introduced in order to assess the impact of electrification options under different possible future energy market conditions. The framework is illustrated by a case study for an existing chemical plant for which there is a broad variety of electrification options that affect the process in different ways. The option of replacing the natural gas based syngas production unit with electrified syngas and steam production is analysed in detail. The results indicate natural gas savings of 173 MW whereas the electricity demand increases by 267 MW, leading to a strong increase in energy costs but also avoided greenhouse gas emissions of 333 kt/a. For two selected energy market scenarios for 2030 and 2040, the energy costs increase by 59 and 50 M€/a, respectively. The framework can be used to compare electrification with other process greenhouse gas emission reduction measures and to support policy and industrial decision making.

工业过程的电气化是减少能源密集型行业温室气体排放的经常讨论的选择之一。本文提出了一个自下而上的框架，以评估温室气体排放和能源成本方面的能源密集型工业过程工厂的过程电气化方案。该框架基于收缩分析能量目标方法，并考虑了特定地点的条件，包括对热回收潜力以及总体质量和能量平衡的影响。此外，考虑了过程现场与背景能源系统之间的相互作用，并介绍了各种方案，以评估在不同的未来能源市场条件下电气化方案的影响。通过对现有化工厂的案例研究来说明该框架，该工厂有各种各样的电气化选择，这些电气化选择以不同的方式影响过程。详细分析了用电气化合成气和蒸汽生产替代基于天然气的合成气生产装置的选择。结果表明，天然气节省了173兆瓦，而电力需求却增加了267兆瓦，导致能源成本大幅增加，而且避免了333 kt / a的温室气体排放。对于2030年和2040年的两个选定的能源市场情景，能源成本分别增加59和5000万欧元/年。该框架可用于将电气化与其他过程温室气体减排措施进行比较，并支持政策和工业决策。