Abstract in simplified Chinese:本发明是一种产制可在常温下泵送之蜡和原油之混合物的方法。此蜡合适地是一种费雪‧阙布什蜡。原油之温度受控制在一低于蜡之溶解温度之程度下。蜡晶体被均质化且分散入原油中以形成混合物。本发明防止蜡溶在原油中,及随后在较低温度下再结晶,此可实质地增加混合物之粘度,借此减低输送混合物之效率。
Abstract:
PROBLEM TO BE SOLVED: To provide a process using high efficiency evaporation distillation for producing an ash-free coal tar pitch and a mesophase coal tar pitch which do not contain insoluble quinoline and have a desired softening point. SOLUTION: A raw material coal tar having a softening point in the range from 70°C to 160°C is supplied to a processing vessel. The processing vessel is heated to the temperature in the range from 300°C to 600°C at the pressure of not more than 5 Torr to obtain an ash-free distillate having a softening point in the range from 25°C to 60°C and not containing insoluble quinoline. Then the distillate is heat-treated in the range from 350°C to 595°C and the heat-treated distillate is further distilled to obtain a pitch having a desired softening point. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PURPOSE:To contrive saving of combustion expense by contriving conversion of fuel by adopting oil coke as the fuel of a boiler, by mixing heavy oil with the oil coke pulverized smaller than a predetermined grain size. CONSTITUTION:The material obtained by mixing more than 10% of heavy oil with oil coke pulverized more than 200 meshes is adopted as fuel of a boiler. Then the size of a boiler furnace is set so that the sojourn time in the boiler furnace becomes more than about 1.6sec, desirably about 2sec. With this construction, fuel conversion, which is favorable from industrial point of view, can be fulfilled by adopting the oil coke as the fuel of the boiler.