scholarly journals Technoeconomic Evaluation of Recent Process Improvements in Production of Sugar and High-Value Lignin Co-Products via Two-Stage Cu-Catalyzed Alkaline-Oxidative Pretreatment

2021 ◽  
Author(s):  
Zhaoyang Yuan ◽  
Bryan D. Bals ◽  
Eric L. Hegg ◽  
David B. Hodge
Keyword(s):  
Raw Material ◽  
Selling Price ◽  
Two Stage ◽  
Lignin Valorization ◽  
Process Improvements ◽  
Technoeconomic Analysis ◽  
High Sugar ◽  
Metal Catalyzed ◽  
High Yields ◽  
Pretreatment Technology

Abstract Background A lignocellulose-to-biofuel biorefinery process that enables multiple product streams is recognized as a promising strategy to improve the economics of this biorefinery and to accelerate technology commercialization. We recently identified an innovative pretreatment technology that enables of the production of sugars at high yields while simultaneously generating a high-quality lignin stream that has been demonstrated as both a promising renewable polyol replacement for polyurethane applications and is highly susceptible to depolymerization into monomers. This technology comprises a two-stage pretreatment approach that includes an alkaline pre-extraction followed by a metal-catalyzed alkaline-oxidative pretreatment. Our recent work demonstrated that H2O2 and O2 act synergistically as co-oxidants during the alkaline-oxidative pretreatment and could significantly reduce the pretreatment chemical input while maintaining high sugar yields, high lignin yields, and improvements in lignin usage. Results This study considers the economic impact of these advances and provides strategies that could lead to additional economic improvements for future commercialization. The results of the technoeconomic analysis (TEA) demonstrated that adding O2 as a co-oxidant at 50 psig for the alkaline-oxidative pretreatment and reducing the raw material input reduced the minimum fuel selling price from $1.08/L to $0.85/L, assuming recoverable lignin is used as a polyol replacement. If additional lignin can be recovered and sold as more valuable monomers, the minimum fuel selling price (MFSP) can be further reduced to $0.73/L. Conclusions The present work demonstrated that high sugar and lignin yields combined with low raw material inputs and increasing the value of lignin could greatly increase the economic viability of a poplar-based biorefinery. Continued research on integrating sugar production with lignin valorization is thus warranted to confirm this economic potential as the technology matures.

scholarly journals Transforming biorefinery designs with ‘Plug-In Processes of Lignin’ to enable economic waste valorization

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhi-Hua Liu ◽  
Naijia Hao ◽  
Yun-Yan Wang ◽  
Chang Dou ◽  
Furong Lin ◽  
...  
Keyword(s):  
Cellulosic Ethanol ◽  
Cost Effective ◽  
Substantial Improvement ◽  
Selling Price ◽  
Waste Valorization ◽  
Lignin Valorization ◽  
Capital Costs ◽  
Carbon Efficiency ◽  
Synergistic Enhancement ◽  
Total Capital

AbstractBiological lignin valorization has emerged as a major solution for sustainable and cost-effective biorefineries. However, current biorefineries yield lignin with inadequate fractionation for bioconversion, yet substantial changes of these biorefinery designs to focus on lignin could jeopardize carbohydrate efficiency and increase capital costs. We resolve the dilemma by designing ‘plug-in processes of lignin’ with the integration of leading pretreatment technologies. Substantial improvement of lignin bioconversion and synergistic enhancement of carbohydrate processing are achieved by solubilizing lignin via lowering molecular weight and increasing hydrophilic groups, addressing the dilemma of lignin- or carbohydrate-first scenarios. The plug-in processes of lignin could enable minimum polyhydroxyalkanoate selling price at as low as $6.18/kg. The results highlight the potential to achieve commercial production of polyhydroxyalkanoates as a co-product of cellulosic ethanol. Here, we show that the plug-in processes of lignin could transform biorefinery design toward sustainability by promoting carbon efficiency and optimizing the total capital cost.

scholarly journals Setting Up a Lab-Scale Pilot Plant to Study the New Growing System (NGS®) for Leafy Vegetable and Culinary Herb Growth

Horticulturae ◽  
2021 ◽  
Vol 7 (5) ◽  
pp. 90
Author(s):  
Silvana Nicola ◽  
Giuseppe Pignata ◽  
Manuela Casale ◽  
Saeid Hazrati ◽  
Andrea Ertani
Keyword(s):  
Pilot Plant ◽  
Raw Material ◽  
Leafy Vegetables ◽  
Plant Densities ◽  
Culinary Herbs ◽  
Soilless Cultivation ◽  
Set Up ◽  
High Yields ◽  
Leaf Vegetable ◽  
Nutrient Solutions

New cultural techniques have been developed to improve the yield and raw material quality at harvest, and enhance the postharvest shelf life, by standardizing the growing system. Among the different Soilless Cultivation Systems, the New Growing System (NGS®) is a closed-recirculating system that was designed for open fields and protected cultivations. The aim of this work was to investigate the structural setting of the system and its functioning to harness the full potentiality of NGS®. A lab-scale pilot plant (LSPP) was designed with NGS® technology and the technical aspects have been set up to have a standardized and reproducible growing system. The trials were conducted on growing mature-leaf vegetable species; that is, on both head and multi-leaf vegetables, and on culinary herbs at high plant densities. Positive yield results were found for culinary herbs and leafy vegetables. Mints showed high yields for the two re-growths carried out after the first harvest. The LSPP can also be used in a series of reliable experiments and enable researches to test several species, substrates, hydroponic nutrient solutions, and fertigation scheduling.

Pembuatan Gula Semut dari Gula Merah Kelapa di Kabupaten Bulukumba

DEDIKASI ◽  
2019 ◽  
Vol 21 (1) ◽  
Author(s):  
Diana Eka Pratiwi ◽  
Army Auliah ◽  
Maryono Maryono
Keyword(s):  
Shelf Life ◽  
Economic Value ◽  
Raw Material ◽  
Selling Price ◽  
Sugar Production ◽  
Brown Sugar ◽  
South Sulawesi ◽  
Palm Sugar

Herlang Subdistrict is the largest producer of coconut juice (along with Selayar Regency and JenepontoRegency) which is the raw material for coconut sugar production in South Sulawesi. Tugondeng Village is one ofthe villages in Herlang District. About 80% of Tugondeng villagers work in the coconut sugar manufacturingindustry. However, this potential has not well developed due to the low economic value of brown sugar. To increasethe selling price of coconut sugar produced by Tugondeng Village, efforts need to be made to process coconut sapand coconut sugar into products which have higher selling price, namely palm sugar. The steps taken to achieve theobjectives of this activity were : (a) presentation of material on how to process coconut sap and coconut sugar intopalm sugar; and (b) demonstration of preparing palm sugar from coconut sap and coconut sugar. The resultsobtained show that the process of making palm sugar from coconut sap and coconut sugar is quite simple and thepalm sugar produced has longer shelf-life than coconut sugar

scholarly journals Study of Carbohydrate Hydrolysis From Arracacha Roots (Arracacia Xanthorriza Bancroft) to Produce Fermentable Sugars

2021 ◽  
Vol 41 (2) ◽  
pp. e87365
Author(s):  
Darwin Carranza Saavedra ◽  
Jorge Andrés Alvarado Nuñez ◽  
José Fernando Solanilla Duque ◽  
Claudia Patricia Valenzuela Real
Keyword(s):  
Acetic Acid ◽  
Sulfuric Acid ◽  
Mechanical Damage ◽  
Maximum Level ◽  
Raw Material ◽  
Saturated Steam ◽  
Fermentation Inhibitors ◽  
Carbohydrate Hydrolysis ◽  
Fermentable Carbohydrates ◽  
High Yields

In Colombia, approximately 855 840 tons of arracacha are produced each year. The unsalable postharvest arracacha root (Arracacia xanthorriza Bancroft) is not commercialized, mainly due to mechanical damage or small and misshapen roots. In this work, dry samples were characterized and subjected to two treatments: one using thermal hydrolysis, applying saturated steam at pressures of 0,1034 MPa, 0,2068 MPa, and 0,4137 MPa; and another one using hydrolysis with sulfuric acid in concentrations between 0,252,00 M. Then, the cake resulting from the hydrolysis and filtration process was enzymatically hydrolyzed (Liquozyme SC DS, Novozymes) at 1,5, 5 and 10 KNU/g (pH 6, 80 _C, 2 h). Fermentation inhibitors (acetic acid and furfural) were evaluated in the best pretreatment. The results showed that the treatment with sulfuric acid at 1,00 M (2 h) has high yields in reducing sugars added to enzymatic hydrolysis. The maximum level of fermentable carbohydrates per gram of dry sample (1,04 g/g) was also reached. Regarding the fermentation inhibitors of the reducing sugar, a higher concentration of acetic acid was found with a lower furfural content. Therefore, arracacha discards are a promising raw material to increase the supply of bioethanol.

scholarly journals Inovasi alat musik konvensional berbahan dasar bambu oleh Indonesian Bamboo Community

2018 ◽  
Vol 13 (1) ◽  
pp. 1-10
Author(s):  
Mirna Nurmala
Keyword(s):  
Qualitative Research ◽  
Research Methods ◽  
Creative Process ◽  
Musical Instrument ◽  
Qualitative Research Methods ◽  
Raw Material ◽  
Selling Price ◽  
Important Thing ◽  
Material Cost

Adanya asumsi bahwa bambu merupakan material dasar yang murah dan tidak memiliki harga jual,memicu kegelisahan beberapa kalangan untuk berinovasi menggunakan bambu sebagai bahan dasar. Salah satunya adalah Indonesian Bamboo Community yang dipimpin oleh Adang Muhidin yang mencoba berinovasi dengan membuat alat musik konvensional berbahan dasar bambu. Tulisan ini akan membahas proseskreatif yang dilakukan oleh sebuah komunitas bambu dengan metode penelitian kualitatif, yaitu penelitian yang menekankan pada kualitas atau hal terpenting dari sifat suatu benda, yang didalamnya tidak hanyameliputi pertunjukan musik saja tapi bagaimana membuat alat musik yang berbahan dasar bambu. ABSTRACTThe assumption that bamboo is a material cost basis and does not have a selling price, triggers anxiety in some quarters to innovate using bamboo as raw material. One of them is the Indonesian Bamboo Community led by Adang Muhidin who tried to innovate by creating a conventional musical instrument made from bamboo. This paper will discuss the creative process undertaken by a community of bamboo with qualitative research methods, the research emphasizes on the quality or the most important thing of the nature of an object, in which not only includes music performances alone but how to make a musical instrument made from bamboo.

scholarly journals Magnetic Field Application to Increase Yield of Microalgal Biomass in Biofuel Production

2020 ◽  
Author(s):  
Lucielen Oliveira Santos ◽  
Pedro Garcia Pereira Silva ◽  
Sharlene Silva Costa ◽  
Taiele Blumberg Machado
Keyword(s):  
Magnetic Field ◽  
Renewable Energy Sources ◽  
Biomass Concentration ◽  
Field Application ◽  
Raw Material ◽  
Biofuel Production ◽  
Microalgal Biomass ◽  
Microalgal Cultivation ◽  
High Yields ◽  
Magnetic Field Application

Use of fuels from non-renewable sources has currently been considered unsustainable due to the exhaustion of supplies and environmental impacts caused by them. Climate change has concerned and triggered environmental policies that favor research on clean and renewable energy sources. Thus, production of third generation biofuels is a promising path in the biofuel industry. To yield this type of biofuels, microalgae should be highlighted because this raw material contains important biomolecules, such as carbohydrates and lipids. Technological approaches have been developed to improve microalgal cultivation under ecological conditions, such as light intensity, temperature, pH and concentrations of micro and macronutrients. Thus, magnetic field application to microalgal cultivation has become a viable alternative to obtain high yields of biomass concentration and accumulation of carbohydrates and lipids.

scholarly journals PRICE DETERMINATION OF CHICKEN PORRIDGE MSMEs IN FACING RAW MATERIAL COST FLUCTUATION

2019 ◽  
Vol 3 (1) ◽  
pp. 273
Author(s):  
Faizal Haris Eko Prabowo
Keyword(s):  
Raw Material ◽  
Survey Method ◽  
Selling Price ◽  
Price Determination ◽  
Material Costs ◽  
Economic Census ◽  
Revenue Streams ◽  
The Impact ◽  
The City

The culinary industry is currently one of the best industries that are developing, this has become one of the economic supports in several regions. Based on the results of the economic census report of the Tasikmalaya City in 2016 the culinary industry in percentage and number of positions was in the third position followed by the large trade industry which occupied the first position and the processing industry in the second position. This study aims to determine the impact of changes in raw material costs lucratively on the selling price determination of chicken porridge in MSMEs at the City of Tasikmalaya. The population in this study were all MSMEs chicken porridge entrepreneurs totaling 261 units, while the method used in this study was a survey method with a quantitative approach presented descriptively. The result of this study is that changes in raw material costs have an impact of 89.2% on the determination of the selling price of chicken porridge. In fact, this is clearly illustrated by the chicken porridge activists who prefer to set the selling price using a mixed method based on market costs and demand. This is because there is a concern from chicken porridge activists for the risks that they will get such as decreasing sales and automatically reducing their revenue streams.

Preparation and Application Performance Study of High Purity Montmorillonite

2011 ◽  
Vol 284-286 ◽  
pp. 2420-2426
Author(s):  
Jun Qiu ◽  
Xiao Dong Liu ◽  
Xian Jun Lu ◽  
Gui Fang Wang
Keyword(s):  
Shear Rate ◽  
High Purity ◽  
Raw Material ◽  
Layer Charge ◽  
Shearing Stress ◽  
Plastic Body ◽  
Performance Study ◽  
Two Stage ◽  
Application Performance ◽  
Dynamic Shearing

In order to research the colloidal and thixotropic performance of the inorganic gel prepared by high purity montmorillonite, this study uses the moderate grade bentonite ores from Weifang (China) as raw material. Two-stage hydrocyclone classification was applied to obtain the high purity montmorillonite with its content of 94.8 per cent. In contrast to other methods of montmorillonite purification, two-stage purification by hydroclone has the advantages of larger throughput and easily achieving auto-control in industry, and products with different montmorillonite content can be obtained by this method. And then the inorganic gel was prepared by the prepared high purity montmorillonite , its colloidal and thixotropic performances were further studies. Research results show that the inorganic gel belongs to plastic body liquidity, the viscosity decreases with the increase of the shear rate, the static and dynamic shearing stress values are 33.98 Pa and 91.89 Pa respectively, and the thixotropic value is 95.2 dyne·s/cm2, which indicates that it has preferable colloidal and thixotropic performance. Montmorillonite inorganic gel prepared by bentonite with high montmorillonite content and low- layer charge has better gel performance. The application result of inorganic gel in dentifrice and medicine shows that it has excellent effect.

Study on Compound Cross-Flow Liquid-Liquid Extraction for Separating Methylal-Methanol Azeotropic System

2011 ◽  
Vol 130-134 ◽  
pp. 450-453 ◽  
Author(s):  
Jun Lin ◽  
Qun Qun Huang ◽  
Jing Jing Zhu ◽  
Zheng Gui Gu
Keyword(s):  
Energy Consumption ◽  
Lower Energy ◽  
New Technology ◽  
Cross Flow ◽  
Liquid Extraction ◽  
Azeotropic Mixture ◽  
Raw Material ◽  
Recovery Ratio ◽  
Two Stage ◽  
Liquid Liquid Extraction

Aiming at the raw material of a methylal-methanol azeotropic mixture (including 91.8% of methylal, 8.2% of methanol), With a certain proportion of the composite solvent as extracting agent, over 99.5% purity of methylal can be obtained with two-stage cross-flow liquid-liquid extraction combining distillation operation, while the compound extracting agent can be recycled. Compared with the traditional methods, the new technology has more obvious methanol removing effect, higher product purity, higher recovery ratio (>95%), and lower energy consumption. It’s a new feasible scheme to Separate methylal-methanol azeotropic system.

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