ENHANCED SOLID-STATE ANAEROBIC DIGESTION OF LIGNOCELLULOSIC BIOMASS BY ORGANOSOLV PRETREATMENT

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MIRMOHAMADSADEGHI SAFOORA; KARIMI KEIKHOSRO; ZAMANI AKRAM; AMIRI HAMID

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Seminar Paper

Paper Information

Seminar: CONFERENCE OF SPECIALIZED RENEWABLE ENERGY, CLEAN AND EFFICIENT
Year:2014 | Issue:5

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Title

ENHANCED SOLID-STATE ANAEROBIC DIGESTION OF LIGNOCELLULOSIC BIOMASS BY ORGANOSOLV PRETREATMENT

Author(s)

MIRMOHAMADSADEGHI SAFOORA | KARIMI KEIKHOSRO | ZAMANI AKRAM | AMIRI HAMID

Keywords

BIOGAS

SOLID-STATE ANAEROBIC DIGESTION

ORGANOSOLV PRETREATMENT

RICE STRAW

ELM WOOD

PINE WOOD

Abstract

LIGNOCELLULOSIC MATERIALS ARE ABUNDANT AND RENEWABLE FEEDSTOCKS OF BIOENERGY WHICH HAS RECENTLY BEEN USED FOR PRODUCTION OF THE SO-CALLED SECOND-GENERATION BIOFUELS.PRETREATMENT PROCESS IS AN ESSENTIAL STAGE TO IMPROVE THE DIGESTIBILITY OF LIGNOCELLULOSIC SUBSTRATES. IN THIS PAPER, AN ORGANOSOLV PROCESS WAS USED TO IMPROVE THE METHANE YIELD BY SOLID-STATE ANAEROBIC DIGESTION (SSAD) OF THREE LIGNOCELLULOSIC SUBSTRATES (ELM, PINE WOOD, AND RICE STRAW). TO OUR KNOWLEDGE, THERE IS NO PUBLICATION ON USING ORGANOSOLV PRETREATMENT PRIOR TO SSAD. THE UNIQUE ADVANTAGE OF THE ORGANOSOLV PRETREATMENT IS TO SEPARATE LIGNIN AS A VALUE ADDED BY PRODUCT. THE ORGANOSOLV PRETREATMENT WAS CONDUCTED IN FOUR DIFFERENT CONDITIONS (AT 150 AND 180OC FOR 30 AND 60 MIN) USING 75% ETHANOL SOLUTION ON THE LIGNOCELLULOSIC MATERIALS AND THE METHANE PRODUCTION YIELD THROUGH THE SSAD WAS INVESTIGATED. THE RESULTS SHOWED THAT THE TOTAL METHANE YIELD OF THE PRETREATED ELM, PINE, AND RICE STRAW WAS ENHANCED BY 90, 83, AND 36%, RESPECTIVELY. THE EFFECTS OF THE PRETREATMENT TEMPERATURE AND TIME ON METHANE YIELD WERE ALSO INVESTIGATED. STATISTICAL ANALYSES SHOWED THAT THE PRETREATMENT TEMPERATURE WAS THE MOST INFLUENCING FACTOR IN THE SSAD, WHILE THE EFFECT OF PRETREATMENT TIME ON METHANE PRODUCTION FROM ELM, PINE, AND RICE STRAW WAS NOT SIGNIFICANT. ALMOST ALL OF THE SUBSTRATES PRODUCED BIOGASES WITH METHANE CONTENTS BETWEEN 40% AND 50% BETWEEN DAY 14 AND DAY 55.

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APA: Copy

MIRMOHAMADSADEGHI, SAFOORA, KARIMI, KEIKHOSRO, ZAMANI, AKRAM, & AMIRI, HAMID. (2014). ENHANCED SOLID-STATE ANAEROBIC DIGESTION OF LIGNOCELLULOSIC BIOMASS BY ORGANOSOLV PRETREATMENT. CONFERENCE OF SPECIALIZED RENEWABLE ENERGY, CLEAN AND EFFICIENT. SID. https://sid.ir/paper/928969/en

Vancouver: Copy

MIRMOHAMADSADEGHI SAFOORA, KARIMI KEIKHOSRO, ZAMANI AKRAM, AMIRI HAMID. ENHANCED SOLID-STATE ANAEROBIC DIGESTION OF LIGNOCELLULOSIC BIOMASS BY ORGANOSOLV PRETREATMENT. 2014. Available from: https://sid.ir/paper/928969/en

IEEE: Copy

SAFOORA MIRMOHAMADSADEGHI, KEIKHOSRO KARIMI, AKRAM ZAMANI, and HAMID AMIRI, “ENHANCED SOLID-STATE ANAEROBIC DIGESTION OF LIGNOCELLULOSIC BIOMASS BY ORGANOSOLV PRETREATMENT,” presented at the CONFERENCE OF SPECIALIZED RENEWABLE ENERGY, CLEAN AND EFFICIENT. 2014, [Online]. Available: https://sid.ir/paper/928969/en

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