Electrical energy usage in the pulp and paper industry

The authors examine the electrical energy usage in the pulp and paper industry for the continental United States. It is noted that the broad picture of energy required and fuel sources used gives a clear indication of a movement away from oil as an energy source. Internally generated fuel sources of spent liquor and hogged fuel have increased. The steam generated from boilers has increased internally generated electricity. It is pointed out that technologies such as high-yield pulping and impulse drying require less chemicals and reduced thermal requirements. The advanced thermal analysis technique of pinch technology focuses on optimum use of thermal requirements. It is concluded that all of these technologies point the way to more efficient thermal usage and increased demand for electricity