| 摘要 |
A system for high temperature desulfurization of coal-derived gases using regenerable chemical absorbents. A new structure for a chemical absorbent, called a "geode", has an inner core (14) and an exterior shell (12). The inner core (14) of the geode is constituted by a chemically active material, and the exterior shell (12) is constituted by a support material. The chemically active matrial needs to carry little or no structural load because it is supported by the exterior shell (12). The exterior shell (12) is porous (so as to allow gases to diffuse to the inner core (14) of the chemically active material), inert (so as to retain its mechanical strength through multiple cycling), durable, and strong. The geode provides a way to regenerate the chemically active material of the inner core (14) under various process conditions. The geode also provides a way to produce very strong catalyst supports with also high surface area. |
