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proposed by Heywood et al., the effect of the air ratio fluctuations on NO, formation was investigated hy numerical simulation. The simulation results using the measured probability density distribution of the air ratio accurately predicted the effect of the fluctuations on NO, formation.
NiMo sulfide catalysts were supported well with ultrafine hollow particles of a particular carbon black (Ketjen Black: KB). This catalyst exhibited an excellent activity for coal liquefaction and can be recovered from the liquefaction residue for recycling. The high activity is ascribed to the highl
A combined demineralization-agglomeration two-stage process for salty coal is introduced for increasing quality and yield of coal concentrates. The salt was dissoluted and removed by coal treatment with 0.1-0.3 mass% oil. After demineralization 3-20 mass% of oil was added to the coal hydromixture T