03478nas|a2200469 i 4500 20260817161348.0 020329s2001 th u m rtt 00| a1eng d .b11851338 AIT Thesis no. PP-01-3 Siregar, Dompak Maruli Acacia mangium characteristics of various age, height point and branches for kraft pulping raw material Bangkok : Asian Institute of Technology, 2001 43 leaves Thesis ; no. PP-01-3 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources, and Development Thesis (M.Eng.) - Asian Institute of Technology, 2001 The research reviewed in this thesis examines the characteristic of Acacia mangium from different age and from various parts of tree. Method of characterization was comparing the actual tree age with same annual growth separated of the oldest tree. Various age was taken for 4, 5, 6, and 7 years. Separated annual growth was taken from two samples of 7.6 years old trees. The younger tree (4 years) gave higher yield with low kappa number for equal cooking condition. The weakness of the younger tree was poor yield stability, as yield drops for ce1tain kappa reduction in cooking. All acacia pulps seem to have similar possibility to achieve certain brightness level. Brightness difference was more depended on inlet kappa to bleaching. The fiber length was found to increase with age and from pith to bark direction. Fiber length was lower for higher level from ground. Fines content was mainly more for younger tree and the higher level from ground, but wood degradation increased the fines content of 7 years tree. Generally 5 years tree gave better characteristic in respect of cooking and paper quality. Mangium Pulp mills Ruhanen, Mauno, Chairperson Kolehmainen, Heikki, Examination committee Retulainen, Elias, Examination committee Government of Finland, Scholarship donor Asian Institute of Technology. Thesis ; no. PP-01-3 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B09204 .b11851338 mnait u 240329 0 020329 m a u 0 mnait mnait mnadb mnait mnarc 20 40 Barcode : 30050120684971 CREATED : 2002-03-29 RECORD # : i12277216 LPATRON : 1021660 LCHKIN : 2009-01-11 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 13 TOT RENEW : 3 Barcode : 30050160025697 CREATED : 2016-03-18 RECORD # : i12898247 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120933030 CREATED : 2019-11-28 RECORD # : i13234547 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050121018633 CREATED : 2020-08-28 RECORD # : i13291191 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050121018609 CREATED : 2020-08-28 RECORD # : i13291208 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 1006 1006 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT Thesis no. PP-01-3 30050120684971 2026-08-17 16:13:48 1 2026-08-17 20 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no. PP-01-3 30050160025697 2026-08-17 16:13:48 2026-08-17 40 0 0 0 0 MAIN MAIN mnait 2026-08-17 0 AIT Thesis no. PP-01-3 30050120933030 2026-08-17 16:13:48 2 2026-08-17 20 0 0 0 0 MAIN MAIN mnadb 2026-08-17 0 AIT Thesis no. PP-01-3 30050121018633 2026-08-17 16:13:48 3 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 0 AIT Thesis no. PP-01-3 30050121018609 2026-08-17 16:13:48 4 2026-08-17 20