| 20090288991 | Addition of Spent Activated Carbon to Asphalt Compositions and to Coking Units as Feedstock or Quencher - An asphalt mastic is prepared by combining spent activated carbon, that has not been regenerated, with liquid asphalt to achieve a composition that is useful for a variety of applications for which asphalt is used, including aggregate compositions and roofing materials. The activated carbon can also serve as a foaming initiator for the production of foamed asphalt. Still further, the activated carbon can be used as coking unit feedstock and as a quencher for a delayed coking unit. | 11-26-2009 |
