The co-hydrothermal carbonization of rapeseed meal (RM) and pine sawdust (PS) was optimized to obtain biofuels to be used in household pellet stoves. The methodology of optimization of multiple responses was applied on two sets of responses: mass yield-higher heating value-ash content (MY-HHV-AC) and energy yield-ash content (EY-AC) as a function of the RM fraction (%RM) and the reaction temperature (RT). The optimal conditions were 34.5% of RM and 209.3 °C of the MY-HHV-AC set, whereas 30.0% of RM and 193.4 °C were the EY-AC set's optimal parameters. After validation of the optimal responses, the resulting hydrochars were then pelletized before burning. Gaseous and particulate emissions were measured from the combustion of optimal hydrochars and their corresponding untreated biomasses in a commercial pellet stove. The most outstanding findings from hydrochar pellets were associated with decreased emissions of incomplete combustion such as CO and particulate matter, especially by the EY-AC hydrochar, which showed a significantly lower particulate emission than the local emission limit. Based on these results, this work reflects a promising application of hydrothermal carbonization on power generation and the prospective introduction of hydrochar pellets in the global market.

优化了菜籽粕 (RM) 和松木屑 (PS) 的共水热碳化，以获得用于家用颗粒炉的生物燃料。多重响应的优化方法应用于两组响应：作为 RM 分数的函数的质量产量-更高热值-灰分含量 (MY-HHV-AC) 和能量产量-灰分含量 (EY-AC)（ %RM) 和反应温度 (RT)。最佳条件是 MY-HHV-AC 组的 RM 的 34.5% 和 209.3 °C，而 RM 的 30.0% 和 193.4 °C 是 EY-AC 组的最佳参数。在对最佳响应进行验证后，在燃烧之前将所得水碳造粒。气体和颗粒物排放是通过在商业颗粒炉中燃烧最佳水碳及其相应的未处理生物质来测量的。Hydrochar 颗粒最突出的发现与不完全燃烧的排放减少有关，例如 CO 和颗粒物，尤其是 EY-AC 水炭，其颗粒排放量明显低于当地排放限制。基于这些结果，这项工作反映了水热碳化在发电方面的有前景的应用，以及在全球市场上有前景的水炭颗粒。