School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China.
School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China.
Bioresour Technol. 2019 Dec;294:122168. doi: 10.1016/j.biortech.2019.122168. Epub 2019 Sep 20.
In this study, a 20-L spherical explosion vessel, hot plate apparatus, Godbert-Greenwald furnace apparatus, and TG-FTIR were used to investigate the explosion and combustion characteristics of three biomass dusts: dalbergia cochinchinensis (DC), pine sawdust (PS), and cupressus funebris (CF). DC with lower minimum explosible concentration (70-80 g/m), larger maximum explosion pressure (0.742 MPa) and larger maximum explosion pressure rise rate (80.14 MPa/s) had the greatest explosion hazard in three biomass dusts. The apparent activation energy of DC and CF were lower than that of PS, and the main gas products of three samples included CO, CO, CHCOOH, and HO. The volatile matter content of DC characterized by the weight loss and the number of gas products of combustion process was higher than those of PS and CF, showing that the volatile matter content of biomass dust was one of the main factors affecting combustion and explosion hazard.
在这项研究中，使用了 20-L 球形爆炸容器、热板装置、Godbert-Greenwald 炉装置和 TG-FTIR，研究了三种生物质粉尘（降香黄檀（DC）、松木锯末（PS）和柏木（CF））的爆炸和燃烧特性。在三种生物质粉尘中，最低爆炸浓度（70-80 g/m）较低、最大爆炸压力（0.742 MPa）和最大爆炸压力上升率（80.14 MPa/s）较大的降香黄檀具有最大的爆炸危险。降香黄檀和柏木的表观活化能低于松木锯末，三种样品的主要气体产物包括 CO、CO、CHCOOH 和 HO。降香黄檀的挥发分含量特征是失重和燃烧过程中气体产物的数量较高，表明生物质粉尘的挥发分含量是影响燃烧和爆炸危险的主要因素之一。
