Agro-wastes: Mechanical and physical properties of resin impregnated oil palm trunk core lumber

Oil Palm Trunk (OPT) is a non-wood cellulosic raw material which is not yet widely utilized in pulping and papermaking. Research on the utilization of abundant Oil Palm Trunk (OPT) from Sabah (Malaysia) and Lebak (West Java Province) for pulp production was carried out using kraft and soda anthraquinone processes with active alkali (AA) of 13-17%. The raw material was chipped and depithed as pretreatment. Bleaching of pulp was carried out using Elemental Chlorine Free (ECF) process. Analysis of raw material covered physical and chemical properties, and fiber morphology. Both OPT fibers were classified into the moderate fiber length (1.05-1.37 mm). Sabah OPT were very bulky with the chips pile density of 102.16 kg/m3 and 62.91 kg/m3 for undepithed and depithed OPT, respectively. The physical properties of OPT pulps were comparable to that of Acacia mangium pulp. With respect to the bleachability and physical properties, pulping of Lebak OPT using kraft or soda-anthraquinone process with AA of 15% were considered as optimum condition. Depithing on Sabah OPT with high pith content could increase physical properties of pulp. ODEoDnD bleaching sequence on pulps from Sabah OPT gave satisfactory results with respect to the physical properties. Since Sabah OPT had a high pith content, the yields of bleached pulp were relatively low (24.67-26.73%). However, the physical properties of the undepithed and depithed Sabah OPT bleached pulp were higher compared to those of the SNI of Leaf Bleached Kraft Pulp (LBKP).Keywords: depithing, Elemental Chlorine Free, bleached pulp, physical properties, LBKP Pengaruh Variabel Proses Pulping dan Pemutihan Elemental Chlorine Free pada Kualitas Pulp Batang Kelapa SawitAbstrakBatang Kelapa Sawit adalah bahan baku selulosa non-kayu yang belum banyak digunakan dalam pembuatan pulp dan kertas. Penelitian tentang pemanfaatan Batang Kelapa Sawit (BKS) dari Sabah (Malaysia) dan Lebak (Provinsi Jawa Barat) yang berlimpah untuk produksi pulp menggunakan proses kraft dan soda antrakuinon dengan alkali aktif (AA) kisaran 13-17% telah dilakukan. Penyerpihan dan proses depithing bahan baku dilakukan sebagai perlakuan awal. Pemutihan pulp dilakukan menggunakan Elemental Chlorine Free (ECF). Analisis bahan baku mencakup sifat fisik dan kimia, serta morfologi serat. Kedua serat BKS dapat diklasifikasikan sebagai serat moderat dengan panjang 1,05-1,37 mm. BKS dari Sabah sangat ruah dengan densitas tumpukan serpih masing-masing 102,16 kg/m3 untuk yang belum di-depithing dan 62,91 kg/m3 untuk yang telah di-depithing. Sifat fisik pulp BKS sebanding dengan pulp dari Acacia mangium. Sehubungan dengan kemampuan pemutihan dan sifat fisik, pembuatan pulp BKS dari Lebak menggunakan proses kraft atau soda-antrakuinon dengan AA 15% adalah kondisi optimal. Depitihing BKS dari Sabah dengan kandungan pith yang tinggi dapat meningkatkan sifat fisik pulp. Pemutihan dengan urutan ODEoDnD untuk pulp BKS dari Sabah memberikan hasil sifat fisik yang memuaskan. BKS dari Sabah memiliki kandungan pith yang tinggi sehingga rendemen pulp yang diputihkan relatif rendah (24,67-26,73%). Namun, sifat-sifat fisik pulp putih BKS dari Sabah yang belum dan telah di-depithing lebih tinggi dibandingkan SNI Pulp Kraft Putih Kayudaun (LBKP).Kata kunci: depithing, Elemental Chlorine Free, pulp putih, sifat fisik, LBKP

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The Effect of Microwave Treatment on Physical Properties of Oil Palm Trunk (Elaeis guineensis)

2013 IEEE Business Engineering and Industrial Applications Colloquium (BEIAC) ◽

10.1109/beiac.2013.6560143 ◽

2013 ◽

Cited By ~ 2

Author(s):

Noor Ateeqah Abdul Rahman ◽

Kamarulzaman Nordin ◽

Mohd Fahmi Saptri ◽

Mohd Ariff Jamaludin

Keyword(s):

Physical Properties ◽

Oil Palm ◽

Elaeis Guineensis ◽

Microwave Treatment ◽

Oil Palm Trunk

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Distribution of Vascular Bundles and Physical Properties Analysis of Variety DxP Oil Palm Trunk Based on Various Zones and Trunk Heights

Jurnal Penelitian Kelapa Sawit ◽

10.22302/iopri.jur.jpks.v28i1.93 ◽

2020 ◽

Vol 28 (1) ◽

pp. 1-14

Author(s):

Ayu Wulandari ◽

Erwinsyah Erwinsyah

Keyword(s):

Specific Gravity ◽

Moisture Content ◽

Physical Properties ◽

Oil Palm ◽

Peripheral Zone ◽

Vascular Bundles ◽

Board Density ◽

Oil Palm Trunk ◽

Average Value ◽

Regression Test

In an attempt to obtain a homogenous board density from the palm trunk, this research was carried out to analyze the distribution of vascular bundles and the physical properties of the oil palm trunk (moisture content, density, and specific gravity) in various zones and trunk heights. Oil palm trunk samples were used from 29 years old palm (Planted on 1991) which acquired from Aek Pancur Experimental plantation, Indonesian Oil Palm Research Institute (IOPRI). The oil palm trunk sample was cut based on the trunk zones (peripheral, central, and inner), and trunk heights (1, 2, 3, 4, 5, 6, 7 m). The observed parameters were vascular bundles, moisture content, density, and specific gravity. The results showed that the highest number of vascular bundles in the peripheral zone (73.66 vb/cm2). In addition that, the highest density and specific gravity also found in peripheral zone with an average 0,73 gram/cm3 and 0.53, whereas the highest moisture content was found in the inner zone with an average value 141%(w/w). Furthermore, the statistical analysis ((ANOVA and regression test (R2)) in this study showed that the trunk zone factor was more significant than the trunk height for all observed parameters (distribution of vascular bundles, moisture content, density and specific gravity).

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