“…Due to the small capacity and decentralized location of the biomethane production (Fan et al, 2008), small-scale biomethane liquefaction technologies are the most suitable option to recover these sources with a low capital cost and flexible operation (Baccioli et al, 2018). The conventional NG liquefaction processes, namely, cascade liquefaction process (Lee et al, 2014;Mehrpooya et al, 2016), mixed refrigerant liquefaction process (He et al, 2020b;Qyyum et al, 2020b), and expander-based liquefaction process (Lin et al, 2017;He et al, 2019), can be adapted to produce LBM. However, the cascade liquefaction process and most of the mixed refrigerant liquefaction processes are designed for the large-scale LNG plants with a complex configuration, making them unsuitable for small-scale LBM production.…”