Oxide-bonded silicon carbide supports of porosity ranging from 33% to 47% were prepared by heating powder compacts (SiC, clay and alumina) at 1400°C in air with graphite acting as a pore former. The supports were spray-coated with an aqueous slurry of fine SiC powder (d₅₀=15 μm), then sintered to produce a filtering layer with thickness ranging from 116 to 200 μm and average pore size ranging from 5 to 20 μm. Airflow tests were performed on both supports and coated filters at temperatures ranging from 25° to 700°C and superficial velocities ranging from 0.02 to 0.9 m.s⁻¹. Experimental permeability coefficients were used to simulate the pressure drop behavior of hypothetical candle filters for industrial combustion/gasification processes (biomass combustion in water-tube steam boilers (BCSB), pressurized fluidized-bed combustion (PFBC) and integrated gasification combined cycle (IGCC)). The simulated permeation properties of the hypothetical candles were compared to those of commercial hot gas filters.

通过在 1400°C 的空气中加热粉末压块（SiC、粘土和氧化铝），以石墨作为成孔剂，制备了孔隙率从 33% 到 47% 的氧化物键合碳化硅载体。_{用细SiC粉末（d 50} =15μm）的水浆喷涂载体，然后烧结以产生厚度为116至200μm，平均孔径为5至20μm的过滤层。在 25° 至 700°C 的温度范围和 0.02 至 0.9 ms ^{-1的表观速度下，对支架和涂层过滤器进行气流测试}. 实验渗透系数用于模拟工业燃烧/气化过程（水管蒸汽锅炉中的生物质燃烧 (BCSB)、加压流化床燃烧 (PFBC) 和集成气化联合循环 (IGCC) 中的生物质燃烧）的假设烛式过滤器的压降行为）。将假设蜡烛的模拟渗透特性与商业热气过滤器的渗透特性进行比较。