【摘要】 在模拟移动床加压气化炉的气氛下,测定了加压下煤的粘结性指数G″随压力的变化。试验表明,不同的混合气氛对煤粘结性的影响因煤种而异。在含活性气体的气氛中,由于煤和活性气体反应,使失重率增加。来源不同的几种轻焦油,回配入原煤后,都使煤的粘结性下降。但添加大同煤气化重焦油,则使三种试验煤的粘结性均增加。在低压下,焦化温度(750℃以上)对粘结指数G′的影响是显著的,而在2.94MPa 时,温度的影响明显减少。更多还原

【Abstract】 Under the atmosphere simulating the condition of （?）pper part of Lurgigasifier the press（?）re dependence of caking index G″ was determined.It wasshown that the effects of atmosphere gas on caking property depend on thenat re of the coal tested,and it was fo nd that reactive gases（CO₂ and H₂）reacted with the coals with res lts of higher conversion.The addition oflight coal-derived tars to coals resulted in significant decreases of cakingindex G′,while significant increases of caking index G′ were observed withthe addition of Datong coal tar pitch.At lower pressure the carbonizingtemperatures（especially above 750℃）had significant infl ence on cakingindex G′,while at 3 MPa the effects of carbonizing temperatures on cakingproperty decreased greatly.更多还原