Leader in Pulp & Paper Black Liquor Recovery Process Design and Technology

Due to the technical and regulatory demands of the pulp and paper industry, mills require experienced suppliers who understand their process and can offer technology with integrated solutions.

HPD has worked with several leading pulp and paper companies to troubleshoot existing equipment, upgrade older facilities and integrate new technologies to provide increased production efficiency, reduced energy consumption and recover valuable water and chemicals from the process.

Innovative Pulp & Paper Processes and Systems

Over a long history of serving these companies, HPD has introduced several new processes and technologies as well as the largest, most-efficient systems on a worldwide, turnkey basis. HPD's proprietary equipment and processes assist today's modern mills to reach operational and production goals.

Innovations such as the Chloride Removal Process (CRP) that reduces accumulation of non-process elements or seven-effect evaporation trains that run on low-pressure steam make HPD the preferred supplier to many of the world's leading pulp and paper companies.

Other technologies include Enhanced Forced Circulation and switching-falling film concentration systems that provide a low-fouling method of producing 80% solids in processing highly-viscous black liquor. These systems provide stable and reliable operation to consistently produce these high solids from shutdown to shutdown. 

HPD processes offered to the pulp and paper industry:

• Black liquor evaporators and concentrators
• Black liquor heaters
• Condensate segregation
• Foul condensate stripping
• NCG Collection and incineration
• Bleach Filtrate Recycle (BFR™) Process
• Chloride Removal Process (CRP™)
• Blow-heat recovery
• Soap collection and tall-oil acidulation
• Turpentine recovery