Now, we are researching by 3 t/d new coal gasifier as a bench scale gasifier that replaces 2 t/d gasifier. A new facility is gasifier for the basic research that has a lot of feature and special measurement equipments. So, it is possible to achieve the wide range of gasification condition and quantitative evaluation of the phenomenon in gasifier.

Using 3 t/d gasifier, the influence of gasifier operating condition and the gasification characteristic of the various types of coal are evaluated. In addition, new monitoring & measuring technology and utilization technology of coal gasification slag are developed.

< Outline of 3 t/d Coal Gasifier >

Coal capacity is 3 t/d and operating pressure is 2 MPa. Not only air but also oxygen can be used as a gasifying agent, and a wide gasification condition can be examined.

< Monitoring System for Slag Flow >

We are developing a new monitoring system for slag flow. In this system, the image of the slag flow in the gasifier bottom is analyze, and the flowing situation is evaluated.

< Slag Utilization Technology >

Coal ash is melted in gasifier, then melted ash is quenched by water. So, coal ash is discharged as grassy slag particles. Using characteristic that slag particle expand by heating, It is researched to use the expanded slag for the light-weight aggregate and the greening materials, etc.