Organosolv pretreatment with various catalysts for enhancing enzymatic hydrolysis of pitch pine (Pinus rigida)

Park, Nahyun; Kim, Hye-Yun; Koo, Bonwook; Yeo, Hwanmyeong; Choi, In-Gyu

doi:10.1016/j.biortech.2010.04.020

Cited by 160 publications

(91 citation statements)

References 21 publications

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“…Though sulphuric acid has been used extensively as a catalyst due to its strong reactivity, it is toxic and corrosive and possesses inhibitory characteristics [144]. Park et al [144] evaluated the effectiveness of acidic (H 2 SO 4 ), basic (NaOH), and neutral (MgCl 2 ) catalysts on pine and found the acid as the most efficient in terms of the ethanol yield; however, an increase in the concentration of the base from 1 to 2% had a positive effect on digestibility.…”

Section: Process Descriptionmentioning

confidence: 99%

Chemical Pretreatment Methods for the Production of Cellulosic Ethanol: Technologies and Innovations

Bensah

Mensah

2013

International Journal of Chemical Engineering

277

105

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Pretreatment of lignocellulose has received considerable research globally due to its influence on the technical, economic and environmental sustainability of cellulosic ethanol production. Some of the most promising pretreatment methods require the application of chemicals such as acids, alkali, salts, oxidants, and solvents. Thus, advances in research have enabled the development and integration of chemical-based pretreatment into proprietary ethanol production technologies in several pilot and demonstration plants globally, with potential to scale-up to commercial levels. This paper reviews known and emerging chemical pretreatment methods, highlighting recent findings and process innovations developed to offset inherent challenges via a range of interventions, notably, the combination of chemical pretreatment with other methods to improve carbohydrate preservation, reduce formation of degradation products, achieve high sugar yields at mild reaction conditions, reduce solvent loads and enzyme dose, reduce waste generation, and improve recovery of biomass components in pure forms. The use of chemicals such as ionic liquids, NMMO, and sulphite are promising once challenges in solvent recovery are overcome. For developing countries, alkalibased methods are relatively easy to deploy in decentralized, low-tech systems owing to advantages such as the requirement of simple reactors and the ease of operation.

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Section: Process Descriptionmentioning

confidence: 99%

Chemical Pretreatment Methods for the Production of Cellulosic Ethanol: Technologies and Innovations

Bensah

Mensah

2013

International Journal of Chemical Engineering

277

105

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“…Finally, cd refers to any credits or additional costs imposed. This is shown in Table 2 (35) In order for the plant production to be optimum, the amount of main products produced should be within the minimum and maximum capacity of the plant. There is a minimum capacity to ensure that the minimum quantity is met before the conversion technology can be used for efficiency purposes.…”

Section: Environmental Modelmentioning

confidence: 99%

“…The process takes place at temperature between 150-200°C, with 0.39% sulphuric acid acting as a catalyst, the maximum ethanol concentration of 50% w/w in the aqueous solution and a liquid-to-solid ratio of 4:1 [30]. Among all the available experimental results the study of Chum et al [30] is used in this study which considers the Organosolvation pre-treatment of wood chips [30][31][32][33][34][35]. The capital cost for this process is more expensive than the Dilute-Acid pre-treatment, because of the additional cost of utilizing another distillation column for the solvent recovery.…”

Section: Organosolv Pre-treatment (P2)mentioning

confidence: 99%

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Technology selection for bioethanol production: supply chain perspective

Yu¹,

Hosseini²,

Korokas³

2014

Bioethanol

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There is a large body of literatures regarding the choice and optimization of different processes for bioethanol and bio-commodities production. However, most of these works are focusing either on single unit of operation or single conversion facility. As these operations are heavily related, it is essential to consider all of them at the supply chain level. In this work, an optimization model for biomass to ethanol supply chain is developed, which takes into account economics and environments as primary objectives. The developed model is used to compare the efficiency of several pre-treatment methods: Dilute-Sulphuric acid, Organosolv and Soaking in Ethanol and Aqueous Ammonia pre-treatment methods, together with Thermochemical conversion in Minnesota, USA. It can be concluded that currently, Dilute-Sulphuric acid pretreatment is still the most profitable method for ethanol production. However, Organosolv pre-treatment process is the most promising technology accessed since it captures most of the lignin present in the feedstock, which is a significant source of CO 2 emission if sent for combustion. We believe that the future of technology selection for biomass conversion should be focusing on the holistic view of the entire supply chain, and our approach represents a dependable way to obtain the required results.

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“…Organosolv pretreatment can achieve a high glucose yield from a lignocellulosic biomass (Pan et al, 2007;Park et al, 2010;. In addition, organosolv lignin extracted from the organosolv pretreatment process has a relatively high purity and diverse application (El Hage et al, 2010).…”

mentioning

confidence: 99%

Organosolv Pretreatment of Slurry Composting and Biofiltration of Liquid Fertilizer-Treated Yellow Poplar for Sugar Production

Kim¹,

Gwak²,

Jang

et al. 2015

Journal of the Korean Wood Science and Technology

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Organosolv pretreatment with various catalysts for enhancing enzymatic hydrolysis of pitch pine (Pinus rigida)

Cited by 160 publications

References 21 publications

Chemical Pretreatment Methods for the Production of Cellulosic Ethanol: Technologies and Innovations

Chemical Pretreatment Methods for the Production of Cellulosic Ethanol: Technologies and Innovations

Technology selection for bioethanol production: supply chain perspective

Organosolv Pretreatment of Slurry Composting and Biofiltration of Liquid Fertilizer-Treated Yellow Poplar for Sugar Production

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