CD Skripsi

Produksi Bioetanol Dari Reject Of Stock Preparation Pada Proses Pembuatan Kertas Dengan Proses Hidrolisis Dan Fermentasi

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ABSTRACK
Indonesia is one of the largest paper producing and exporting countries in the
world. Along with the increase in paper production, solid waste is generated from
the reject of stock preparation. These reject of stock preparation has the potential
to produce bioethanol because it contains a high cellulose content of 85,53% and
hemicellulose 3,88%which is able to support the provision of renewable and
environmental friendly fuels. The purpose of this study was to obtain the
concentration of sulfuric acid (H2SO4) and hydrolysis temperature that can
produce the highest sugar concentration in the reject of stock preparation
hydrolysis process into sugar; to get the best pH value and fermentation time in
the fermentation process by using Saccharomyces cerevisiae; and also get the
percent yield of fermented sugar into bioethanol. The stages in this research is
pretreatment of samples refined with a 1000 micron sieve (18 mesh), then the
hydrolysis process with various concentrations of sulfuric acid (H2SO4) 6, 8, 10,
12% (v/v) and temperatures of 120oC, 130oC and 140oC for 30 minutes. Finally,
the fermentation process was carried out with a variation of pH 4.5; 5; and 5,5
and fermentation time of 24, 48, 72 and 96 time. Based on the research results,
the highest total sugar concentration of 9,8244 g/l was obtained in the hydrolysis
process with a concentration of 12% (v/v) H2SO4 and a temperature of 140oC. The
highest bioethanol concentration of 5.83 g/l was obtained in the fermentation
process with the best pH 4.5 and fermentation time of 72 hours with the percent
yield obtained at 85.88% (0.44 gram bioethanol / gram sugar).
Keywords : Bioethanol, fermentation, hydrolysis, reject of stock preparation
Saccharomyces cerevisiae.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

07 02. 120 (0140)

Penerbit

Pekanbaru : Universitas Riau – Fakultas Teknik – Teknik Kimia., 2020

Deskripsi Fisik

ix, 79 hlm.; ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

07 02. 120 (0140)

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

Lampiran Berkas

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