Digester Steam Saver, DSS™
We supply kraft conventional batch digester cooking systems for hardwood, tropical hardwood, softwood and bamboo. The DSS™ is designed to save energy at a low cost. This system does not offer the beneficial chemical effects of a true displacement digester system such as CPL's DDS™. The Type D system has an energy recovery phase in the cooking cycle which is equivalent to one vacuum washer stage of solids removal.
The DSS™ does not require a tank farm the size of DDS™. The DSS™ Type R and Type D both require only one pressure vessel. The Type D allows for energy recovery similar to a displacement digester system (ie. one washing stage equivalent), however the spent liquor is not reused as in the displacement digester system (DDS™) which precludes the chemical benefits similar to the other DDS™. All of the DSS™ configurations are a very economical first option versus the DDS™ since all the equipment can be used to progress to the DDS™, a true displacement digester system, at a future time.