Application of peroxymonosulfuric acid as a modification of the totally chlorine-free bleaching of acacia wood prehydrolysis-kraft pulp

Rizaluddin, Andri Taufick; Liu, Qiang; Panggabean, Posma Reginald; Ohi, Hiroshi; Nakamata, Keiichi

doi:10.1007/s10086-015-1465-z

Cited by 31 publications

(24 citation statements)

References 16 publications

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“…The Unbleached pulp (10 g, oven-dried weight) was first treated with a mixture of H2SO5, H2SO4, and H2O2 (0.19, 0.81, and 0.14 mmol/L, respectively) in a polyethylene bag. H2SO5 was synthesized by dropping 95% sulfuric acid (Wako Pure Chemical Industries, Ltd.) into 45% hydrogen peroxide aqueous solution (Mitsubishi Gas Chemical Company, Inc.) at 70°C, and a small amount of NaOH aqueous solution was added to the pulp at 10% PC to adjust the pulp suspension to pH 3.0 22) . Then after washing, the pulp was treated with ClO2 in a polyvinylidene chloride bag.…”

Section: Bleaching Sequences and Conditionsmentioning

confidence: 99%

Peer Reviewed Biorefinery of Oil Palm Empty Fruit Bunch by Nitric Acid Prehydrolysis Soda Cooking. Production of Furfural and Dissolving Pulp

Nakagawa-Izumi

Kajiyama

Ohi

2018

JAPAN TAPPI JOURNAL

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Abundant waste agricultural residues such as oil palm empty fruit bunch (EFB) can provide alternative sources of biomass for producing furfural. The aims of this study were to propose a method of preparing furfural and dissolving pulp (DP) from EFB using prehydrolysis with nitric acid, and to examine how the prehydrolysate, which contains xylan, can be used for furfural production. The furfural yield in the nitric acid prehydrolysate was increased to 6.2% of the EFB material weight by dehydration with an acid catalyst. Nitric acid prehydrolysis followed by soda cooking under atmospheric pressure was also applied to the preparation of DP. The obtained pulp was then bleached by using peroxymonosulfuric acid (Psa), chlorine dioxide (D0, D1), and hydrogen peroxide (Ep) in the elementary chlorine-free Psa-D0-Ep-D1 sequence. The pulp demonstrated a brightness of 90.4% ISO and a viscosity of 6.5 cP, which met the National Standard of Indonesia, although the xylan content was a little high and the α-cellulose content was 83.0%.

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Section: Bleaching Sequences and Conditionsmentioning

confidence: 99%

Peer Reviewed Biorefinery of Oil Palm Empty Fruit Bunch by Nitric Acid Prehydrolysis Soda Cooking. Production of Furfural and Dissolving Pulp

Nakagawa-Izumi

Kajiyama

Ohi

2018

JAPAN TAPPI JOURNAL

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“…were provided by the Hokuetsu Corporation, Japan. H 2 SO 5 was prepared in a laboratory by dropping 95% sulfuric acid (Wako Pure Chemical Industries, Ltd.) into 45% aqueous hydrogen peroxide solution(Mitsubishi Gas Chemical Company, Inc.)at 70℃ in accordance with a previously reported procedure 11) . The final solution contained 0.19 mmol/L H 2 SO 5 , 0.81 mmol/L H 2 SO 4 , and 0.14 mmol/L H 2 O 2 .…”

Section: Methodsmentioning

confidence: 99%

“…In addition, to further decrease the environmental load generated during the bleaching stages, the TCF bleaching of prehydrolysis-kraft pulp, without the use of ozone, was proposed in a previous study by Rizaluddin and others 11) ; the use of peroxymonosulfuric acid (P sa ) was shown to potentially decrease ozone usage, since it is more selective and effective, based on kappa number and viscosity measurements, compared to treatment with 0.5% ozone 11) . During TCF bleaching, the levels of discharged organochlorine substances, as adsorbable organic halogen, are reduced.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Dissolving Pulp by Totally Chlorine-free Bleaching：Roles of Hardwood Syringyl and Guaiacyl Lignins

et al. 2018

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Dissolving pulp was produced from four diff erent hardwoods by prehydrolysis-kraft cooking and totally chlorine-free (TCF) bleaching using oxygen (O) ，peroxymonosulfuric acid (P sa) ，and alkali extraction with hydrogen peroxide (E p) in an O-P sa-E p-P sa-E p sequence. The hardwood lignin structures were characterized by the nitrobenzene oxidation method, which provided syringaldehyde (S a) to vanillin (V a) molar ratios (S/ V ratios) of the lignin. Eucalyptus globulus wood had the highest S/V ratio of 5.81 and a combined yield of S a and V a of 3.04 mmol/g-lignin, while the Acacia hybrid wood exhibited the lowest S/V ratio and the combined yield. The E. globulus wood provided a fi nal pulp with an acceptable level of viscosity 7.0 mPa•s, a weight-average molecular weight (M w) 3.04 × 10 5 g/mol, a number-average molecular weight (M n) 5.56 × 10 4 g/mol, polydispersity (M w /M n) 5.47, a high brightness of 90.1% ISO, and an α-cellulose content of 94.2%. It is attributed to the high S/V ratio and the high combined S a and V a yield, which is suggestive of a less-condensed lignin structure compared to the other hardwoods tested. No signifi cant diff erences in the cellulose crystallinities of the bleached pulp produced from the four hardwoods were observed.

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“…mengusulkan tahap kombinasi peracetic acid (T) pada tahapan klorin dioksida (D), dengan tahapan A(DT), dengan klorin dioksida ditambahkan sebelum peracetic acid (Tavast et al, 2011) Keterangan proses pemutihan: A = asam (H 2 SO 4 ), C = klorin, D = D 0 = klor dioksida, O = oksigen, Z = ozon, P = hidrogen peroksida, P sa = asam peroksimonosulfat, T = asam perasetat, E = ekstraksi, E p = ekstraksi + hidrogen peroksida, Q = tahap chelating, H = asam hipoklorit, HT = temperatur tinggi, X = perlakuan enzim tahapan konvensional (D, D 0 ) dan tahapan peracetic acid (T) secara terpisah. Sementara itu, penelitian lain (Yoshida and Koshitsuka, 2008;Yoon et al, 2012;Rizaluddin et al, 2015) mengusulkan bahwa tahap A dapat diganti dengan tahap asam peroksimonosulfat (P sa ) yang selain bereaksi dengan HexA, menurunkan kandungan lignin (menurunkan KN) dari pulp, juga dapat menurunkan konsumsi total aktif klorin.…”

Section: Efek Kandungan Hexa Pada Proses Pemutihanunclassified

Kandungan Hexenuronic Acid pada Pulp serta Pengaruhnya terhadap Kualitas Pulp dan Air Limbah: Tinjauan

Rizaluddin

Septiningrum

2018

J selulosa

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Proses pemasakan kayu dengan cara alkali aktif akan menghasilkan hexenuronic acid (HexA) yang berasal dari grup glucuronoxylan, tepatnya 4-O-methylglucuronoxylan pada hemiselulosa. Proses hidrolisis HexA menghasilkan dua jenis senyawa furan, yaitu 2-furancarboxylic acid (FA) dan 5-formyl-2-furancarboxylic acid (FFA). Proses hidrolisis HexA hasil proses pemasakan dan terkandung dalam pulp dan kertas merupakan salah satu penyebab proses penguningan pada kertas akibat adanya paparan kelembapan dan panas dari lingkungan. Selain itu, kandungan HexA pada pulp juga dapat meningkatkan konsumsi bahan kimia pada proses produksi pulp dan kertas, terutama pada proses pemutihan dan pengujian parameter bilangan Kappa, serta dapat berkontribusi pada kandungan senyawa organik klorin terlarut dalam air limbah industri pulp dan kertas. Metode untuk menurunkan kandungan HexA dari pulp dan kertas antara lain dengan mengaplikasikan proses oksidatif kimia pada proses pemutihan atau dengan menggunakan proses enzimatis. Kandungan HexA yang rendah, akan dapat mempertahankan pulp dan kertas dari terjadinya proses penguningan, menghemat konsumsi bahan kimia serta menurunkan kandungan adsorbable organic halides (AOX) pada air limbah.Kata kunci: hexenuronic acid, pemasakan kayu, bilangan Kappa, AOX, enzimatis Hexenuronic Acid Content on Pulp and its Effects on Pulp Quality and Wastewater: a ReviewAbstractThe wood active alkali cooking process will produce hexenuronic acid (HexA) originating from 4-O-methylglucuronoxylan of the glucuronoxylan group in hemicellulose. Hydrolysis process of HexA produces two types of furan compounds, namely 2-furancarboxylic acid (FA) and 5-formyl-2-furancarboxylic acid (FFA). The HexA hydrolysis process contained in pulp and paper resulting from the cooking process is one of the causes of the yellowing process on paper due to exposure to moisture and heat from the environment. In addition, the HexA content of pulp can also increase the consumption of chemicals in the pulp and paper production process, especially in the bleaching process and testing of Kappa number parameters, and can also contribute to the content of organic chlorine soluble compounds in the waste water of the pulp and paper industry. There are several methods for reducing the HexA content of pulp and paper including by applying the oxidative chemical process to the bleaching process or by using an enzymatic process. Low HexA content, will be able to maintain pulp and paper from the occurrence of the pulp yellowing process, save on chemical consumption and reduce the adsorbable organic halides (AOX) content in wastewater.Keywords: hexenuronic acid, wood cooking, Kappa number, AOX, enzymatic

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Application of peroxymonosulfuric acid as a modification of the totally chlorine-free bleaching of acacia wood prehydrolysis-kraft pulp

Cited by 31 publications

References 16 publications

Peer Reviewed Biorefinery of Oil Palm Empty Fruit Bunch by Nitric Acid Prehydrolysis Soda Cooking. Production of Furfural and Dissolving Pulp

Peer Reviewed Biorefinery of Oil Palm Empty Fruit Bunch by Nitric Acid Prehydrolysis Soda Cooking. Production of Furfural and Dissolving Pulp

Preparation of Dissolving Pulp by Totally Chlorine-free Bleaching：Roles of Hardwood Syringyl and Guaiacyl Lignins

Kandungan Hexenuronic Acid pada Pulp serta Pengaruhnya terhadap Kualitas Pulp dan Air Limbah: Tinjauan

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