The outbreak of Ulva prolifera as a marine waste biomass costs a huge amount of manpower and sources for remediation. The effective utilisation of U. prolifera would be mutually beneficial for environmental protection and production of bio-based energy or chemicals. Herein, the pyrolysis behaviour of the main constituents in U. prolifera was investigated to provide valuable data for its further valorisation. The cleavage of thermally unstable sulphated polysaccharides initial occurred between 180 and 200 °C. Uronic acid fraction in hemicellulose degraded at 180–240 °C, releasing formic acid (FA) and oligosaccharides. The complete depolymerisation of hemicellulosic polysaccharides generated rhamnose (Rha) at 300 °C. Above 300 °C, the formation of 5-methyl furfural originated from the dehydration of Rha and the pyrolytic reactions of cellulose. Cellulose with better thermal stability slowly underwent an intermolecular dehydration process at 160 to 240 °C and needed higher temperature for full conversion. The favourable pyrolysis temperature range of the specific constituents and the corresponding detailed pyrolysis characteristics provided an opportunity to obtain value-added chemicals with high selectivity and then increased the utilisation value of U. prolifera.

Ulva增殖作为海洋废弃物生物质的爆发需要大量的人力和资源进行修复。有效利用U. prolifera将对环境保护和生物基能源或化学品的生产互利互惠。在这里，在主要成分的热裂解行为U.苔进行了调查，以为其进一步评估提供有价值的数据。最初在180至200°C之间发生热不稳定的硫酸化多糖的裂解。半纤维素中的尿酸成分在180–240°C时降解，释放出甲酸（FA）和低聚糖。半纤维素多糖的完全解聚在300°C产生鼠李糖（Rha）。高于300°C，5-甲基糠醛的形成源自Rha的脱水和纤维素的热解反应。具有更好热稳定性的纤维素在160至240°C的温度下缓慢经历分子间脱水过程，需要更高的温度才能完全转化。U.苔。