H-factor

See also h-index.

H-factor is a kinetic model for the rate of delignification in kraft pulping. It is a single variable model combining temperature (T) and time (t) and assuming that the deligification is one single reaction.^[1]

$H = \int_0^t \exp\left(43.2-16115/T\right)\,dt\,$

References

1. Gullichsen, Johan; Fogelholm, Carl-Johan (2000). Chemical Pulping. Papermaking Science and Technology 6A. Finland: Fapet Oy. pp. 291–292. ISBN 952-5216-06-3.