Preliminary study on products distribution in alcohol pulping of Eucalyptus globulus

The aim of the present work was to study the fractionation of Eucalyptus globulus wood into pulp and by‐products by alcohol–water pulping. Under the cooking conditions employed low lignin content pulp and a high yield of by‐products were attained. The laboratory‐scale alcohol and by‐products recovery system studied consisted of three stages: black liquor flashing, lignin precipitation from black liquor, and distillation of precipitation mother liquor. The mass balance for the process enabled the amount of pulp and by‐products produced and the consumption of chemicals to be estimated. © 1999 Society of Chemical Industry