Energy From Biomass in Pulp and Paper Mills

Gavrilescu, Dan

doi:10.30638/eemj.2008.077

Cited by 129 publications

(88 citation statements)

References 6 publications

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“…Limbah serat selulosa dalam lumpur primer IPAL industri kertas, memiliki potensi untuk dimanfaatkan sebagai bahan baku bioetanol. Pemanfaatan tersebut, selain menghasilkan produk etanol sebagai bahan bakar alternatif yang ramah lingkungan, juga dapat mengatasi permasalahan penyediaan lahan (landfill) untuk pembuangan lumpur (Gavrilescu, 2008).…”

Section: Pendahuluanunclassified

Lumpur Primer Ipal Industri Kertas Sebagai Bahan Baku Alternatif Bioetanol

2016

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Primary sludge from paper mill waste water treatment plant (WWTP) is a potential raw material for ABSTRAKLumpur primer dari IPAL industri kertas mempunyai potensi sebagai bahan baku untuk produksi bioetanol, karena kandungan organiknya yang tinggi terutama selulosa. Lumpur primer IPAL diperoleh dari industri kertas berbahan baku virgin pulp. Secara garis besar percobaan dilakukan dengan sistem dua tahap yaitu proses hidrolisis selulosa dan dilanjut proses fermentasi glukosa. Percobaan proses hidrolisis selulosa dilakukan pada pH 5,5 dan suhu 50 o C dengan 2 faktor perlakuan yaitu dosis selulase (10, 20, dan 25 FPU/g selulosa) dan lama proses hidrolisis (24, 48, 72, dan 96 jam), sedangkan percobaan proses fermentasi dilakukan terhadap glukosa hasil proses hidrolis pada kondisi optimumnya. Proses fermentasi dilakukan pada pH 4,5 dan suhu 28 o C menggunakan ragi Saccharomyces cerevisiae sebanyak 10% dengan perlakuan lama inkubasi (24; 48; 72; 96 jam). Hasil percobaan menunjukkan bahwa kondisi optimum proses hidrolisis diperoleh pada dosis selulase 25 FPU/g selulosa selama 72 jam, dengan kadar glukosa 1,92% dan derajat sakarifikasi 61,05%. Kadar etanol yang diperoleh dari proses fermentasi glukosa hasil hidrolisis adalah 0,77% dengan efisiensi fermentasi 78,5%. Secara keseluruhan efisiensi konversi selulosa pada lumpur primer IPAL industri kertas menjadi etanol adalah 46,61% dengan yield sebesar 192 g/kg berat kering.

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Section: Pendahuluanunclassified

Lumpur Primer Ipal Industri Kertas Sebagai Bahan Baku Alternatif Bioetanol

2016

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“…Para a utilização desses resíduos como fonte de energia, devem-se considerar as características físicas e químicas do material, que podem influenciar no rendimento e na manutenção dos equipamentos que realizam os processos de combustão (GAVRILESCU, 2008).…”

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Estimativa Do Potencial Energético De Resíduos Celulósicos De Fabricação De Papel Através De Análise Imediata

Ferreira¹,

Schirmer

Machado

et al. 2014

R. bras. Ener. Renov.

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A fabricação de papel cartão utiliza produtos de madeira, além de biomassa na forma de cavacos para geração de vapor em caldeira. O processo gera resíduos como cascas, fibras e fiapos da fabricação de pasta de madeira, lodo da estação de tratamento de efluentes (ETE), coque e coque peneirado da caldeira. O poder calorífico dos cavacos e dos resíduos foi estimado a partir de análise imediata, para avaliar o potencial de reaproveitamento energético dos resíduos na combustão em mistura com cavacos. Considerando que o poder calorífico útil (PCU) dos cavacos foi de 1917 kcal/kg, analisou-se a viabilidade de secagem do lodo da ETE e das fibras e fiapos em secador de biomassa, que é possível da utilização dos gases quentes da chaminé da caldeira. Os resultados indicaram que o PCU do lodo da ETE a 55% de umidade foi de 1729 kcal/kg e a 20% aumentaria para 3096 kcal/kg. O PCU de fibras e fiapos a 80% de umidade foi de 671 kcal/kg e a 20% aumentaria para 2895 kcal/kg. A determinação do poder calorífico através de análise imediata é proposta em conjunto com a prospecção de tecnologias disponíveis para secagem de biomassa para aumentar o poder calorífico dos resíduos.

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“…Woody biomass resources can be found in all countries and many fields, (Lakó et al 2008), such as forestry, agricultural, and marine (Plištil et al 2005), and it can be used for fuel in developing or developed countries (Lundborg 1998;Prasertsan and Sajakulnukit 2006;Jehlickova and Morris 2007;Gavrilescu 2008;Kazagic and Smajevic 2009;Okello et al 2013;Vilcek 2013), separately or when mixed with coal (Kostanaki and Vamvuka 2005). The European Union (EU) uses about 41.3% of the area, (4 million km 2 ) of its total land (10 million km 2 ) for agriculture and 3 million km 2 for forestry.…”

Section: Introductionmentioning

confidence: 99%

Effects and Modeling of Sawdust Torrefaction for Beech Pellets

Lunguleasa¹,

Spirchez²,

Griu³

2015

BioResources

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This study was done to determine the effects of beech sawdust torrefaction on pellets obtained in the laboratory. Torrefied beech (Fagus sylvatica L.) sawdust was used to make pellets. This species was chosen based on the existence of a market for such micro-briquettes. Rigorous comparisons between torrefied and non-torrefied pellets were conducted. It was found that treating the sawdust had both beneficial and non-beneficial effects, but the total effect is positive. Economical elements were also considered, emphasizing the use of wood biomass as fuel. Theoretical and experimental aspects are taken into consideration, the experimental results being used to validate the theoretical model. The experiments performed demonstrate that heat treatment can add value if it meets certain parameters, such as a maximum temperature of 260 °C for 5 min. Heat treatment of beech sawdust in the form of pellets or briquettes was shown to be a simple, viable, effective treatment because the heating process improves the calorific value and other relevant properties of the torrefied sawdust.

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Energy From Biomass in Pulp and Paper Mills

Cited by 129 publications

References 6 publications

Lumpur Primer Ipal Industri Kertas Sebagai Bahan Baku Alternatif Bioetanol

Lumpur Primer Ipal Industri Kertas Sebagai Bahan Baku Alternatif Bioetanol

Estimativa Do Potencial Energético De Resíduos Celulósicos De Fabricação De Papel Através De Análise Imediata

Effects and Modeling of Sawdust Torrefaction for Beech Pellets

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