Refining Energy Consumption and Fiber Development on CMC-Pretreated Poplar APMP

Abstract

The aim is to get new information about the main energy consumption in where of refined poplar APMP fiber with CMC pretreatment. In this paper, PFI refining trials on 1% and 2% CMC-pretreated poplar APMP were conducted using a comparable standard process. In this process, the standard energy consumption linearly increased with PFI revolutions, CMC pretreatment changed the linear relationship and a plateau of energy consumption was shown against PFI from 2500 rev and 3000 rev. Moreover, the refined fiber was analyzed by a Fiber Lab Analyzer Kajaani FS300. the conclusion on energy consumption was that the energy consumption was mainly used in fiber straighten within PFI rev. 1000; During PFI rev. from 1000 to 2750, the energy demand was mainly used in fines and vessel increase; PFI rev. from 2750 to 3000, the energy consumption was used for fiber coarseness increase and fiber kink index decrease.