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Study of the possibility of producing clean and renewable fuels from cellulosic Industries
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Raheem Ebrahimi Barisa *   , Muharram Hazrati |
| Agricultural Sciences and Natural Resources, Department of Wood and Paper Engineering Gorgan University, Gorgan, Iran |
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Abstract: (3801 Views) |
| Problems such as environmental pollution and limited access to fossil fuels together with obtained advancements in the field of enzymatic technology and genetic engineering have urged researchers to produce ethanol successfully by using raw materials such as wooden waste, remains of agricultural crops and pre-extracted hemicelluloses in pulp mills. In present study, it is investigated the production approach of bioethanol from pre-extracted hemicelluloses in pulp mills by using experimental and library studies. Results show that pre-extracted hemicelluloses are suitable materials in pulp and paper mill for producing bioethanol. The pre-extraction of hemicelluloses caused a 55% reduction of the wasted steam in pulp mills due to reducing flow rate of solids in black liquor. In addition to producing ethanol, the pre-extraction of hemicelluloses caused to reduce consumption of energy and bleaching chemicals, increase pulp quality and brightness and also decrease paper strengths. Hemicelluloses pre-extraction of wooden chips causes to decrease energy consumption up to 13% in the limekiln. Also, the extraction of hemicelluloses before pulping increase the pulping capacity by 22% of the original pulp mill. |
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| Keywords: Pre-extraction, paper pulp, bioethanol, cellulosic Industries, Hemicellulose |
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Full-Text [PDF 920 kb]
(1357 Downloads)
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Type of Study: Applicable |
Subject:
Special
Received: 2015/06/21 | Accepted: 2019/02/15 | Published: 2019/02/15
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