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Analisis Parameter Yang Memengaruhi Kappa Number Reduction Pada Tahap Oxygen Delignification Di Fiberline #3

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ABSTRACT
Oxygen delignification is a continuation of the Kraft-type cooking process which
aims to degrade some of the lignin residuals in unbleached pulp by using oxygen
and alkaline (NaOH and white liquor oxidation). The efficient oxygen
delignification process can reduce the consumption of bleaching chemicals,
especially ClO2. One of the parameters that determine the efficiency of the oxygen
delignification process is the kappa number reduction. kappa number reduction is
the value of kappa that is reduced during the oxygen delignification process. This
study aims to determine what parameters affect kappa number reduction and how
these parameters relate to kappa number reduction. The oxygen delignification
process can be optimized by controlling several parameters, namely: alkaline
charge (kg / ADT), oxygen charge (kg / ADT), retention time (minutes), chemical
oxygen demand (kg / Ton), End pH, oxygen pressure (bar), kappa number pre O2,
reactor temperature, pressure reactor, inlet consistency (%) and current mixers
(423E016 and 423E020). Meanwhile, the reactor temperature, pressure reactor,
current mixer and inlet consistency have been kept stable at the optimum range so
that they do not appear to have an effect on kappa number reduction. The results
obtained show that the Kappa number reduction is influenced by the alkaline
charge with a value of R2 0,7529; O2 charge with R2 0,6957; retention time with
R2 0,6005; COD with R2 0,5714; kappa pre O2 with R2 0,4613; end pH with R2
0,4379; and oxygen pressure with a value of R2 0,404. To achieve the kappa
number reduction target on PT RAPP's Fiberline 3 of 35%, it is necessary to
maintain a variable alkali charge of 25.8 kg / ADT, oxygen charge of 25.9 kg /
ADT, retention time of 66,3 minutes, COD value of 170,6 kg/ton, kappa pre O2 of
16.6; End pH of 11.1 and oxygen pressure of 12.68 bar.
Key words: oxygen delignification, kappa number reduction, alkali charge,
oxygen charge, retention time, chemical oxygen demand, End pH, oxygen
pressure, kappa number pre O2.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

07 02. 021 (0045)

Penerbit

Pekanbaru : Universitas Riau – Fakultas Teknik - Teknologi Pulp Dan Kertas D III., 2021

Deskripsi Fisik

ix, 79 hlm.; ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

07 02. 021 (0045)

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

TEKNIK KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

Daus

Versi lain/terkait

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