The thermal characteristics and kinetics of the microalgae Dunaliella salina were evaluated through microwave catalytic pyrolysis under composite additives (blends of graphite (GP) and Na₂CO₃ (NC)). GP was blended with NC of 0%, 30%, 50%, 70%, and 100%, which were named as NC, 3GP7NC, 5GP5NC, 7GP3NC, and GP. Then different amounts (5%, 10%, and 15%) of NC and 5GP5NC were also studied. The pyrolysis characteristic parameters, characteristic index (D) and activation energy (E), and thermodynamic parameters, including enthalpy (∆H) and Gibbs free energy (∆G), were studied in this paper. In all the groups with the amount of 5%, the initial decomposition temperature (T_i) decreased with the NC proportion of the composite additive increased. The 5GP5NC group obtained the largest values of maximum weight loss rate (R_max), average weight loss rate (R_mean), and D, which were 3.78%/min, 1.67%/min, and 12.35 × 10⁻⁷, respectively. However, the NC group achieved a small value of E (66.28 kJ/mol), ∆H (60.46 kJ/mol), and ∆G (175.97 kJ/mol). When changing the amounts of 5GP5NC, the suitable amount was 15%, based on its largest D (13.76 × 10⁻⁷), smallest E (52.49 kJ/mol), excellent weight loss, and thermodynamic characteristic. For NC, the maximum R_max was obtained at 15%, while the greatest D and minimum E were achieved at 5%.

在复合添加剂（石墨（GP）和Na ₂ CO ₃（NC）的混合物）下，通过微波催化热解法评估了微藻杜氏盐藻的热特性和动力学。GP与0％，30％，50％，70％和100％的NC混合，分别命名为NC，3GP7NC，5GP5NC，7GP3NC和GP。然后还研究了不同含量（5％，10％和15％）的NC和5GP5NC。热解特性参数，特性指标（D）和活化能（E）以及热力学参数，包括焓（∆ H）和吉布斯自由能（∆ G），本文进行了研究。在所有含量为5％的组中，初始分解温度（T _i）随着复合添加剂的NC比例的增加而降低。5GP5NC组的最大失重率（R _max），平均失重率（R _mean）和D的_最大值分别为3.78％/ min，1.67％/ min和12.35×10 ^-7。但是，NC组的E（66.28 kJ / mol），H（60.46 kJ / mol）和G（175.97 kJ / mol）较小。更改5GP5NC的量时，基于最大D值，合适的量为15％（13.76×10 ^-7），最小E（52.49 kJ / mol），极好的失重和热力学特性。为NC，最大- [R_最大为15％，获得，而最大的d和最小Ë在5％来实现的。