Download or read book Bio Butanol Production from Raw Sugar Cost Analysis Butanol E41B written by Intratec and published by Intratec. This book was released on 2019-09-17 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents a cost analysis of bio-based Butanol production from raw sugar. The process examined is a typical Acetone-Butanol-Ethanol (ABE) fermentation process. In this process, acetone and ethanol are generated as by-products. This report was developed based essentially on the following reference(s): Keywords: Butyl Alcohol, Biomass, Biofuel

Download or read book Bio Isobutanol Production from Raw Sugar Cost Analysis Isobutanol E21B written by Intratec and published by Intratec. This book was released on 2019-09-17 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents a cost analysis of bio-based Isobutanol production from raw sugar using a typical fermentation process. In this process, raw sugar (sucrose) is diluted and sucrose is hydrolyzed into glucose and fructose (invert sugars). The invert sugars are then fermented to produce Isobutanol. Ethanol is generated as by-product. This report was developed based essentially on the following reference(s): US Patent 8975049, issued to The Regents Of The University Of California in 2015 Keywords: Butyl Alcohol, Biomass, Biofuel

Download or read book Bio Butanol Production from Corn Cost Analysis Butanol E11A written by Intratec and published by Intratec. This book was released on 2017-06-01 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents a cost analysis of bio-based Butanol production from corn The process examined is a typical Acetone-Butanol-Ethanol (ABE) fermentation process. In this process, acetone and ethanol are generated as by-products. This report was developed based essentially on the following reference(s): Tao, L., et al., "Comparative techno-economic analysis and reviews of n-butanol production from corn grain and corn stover", Biofuels, Bioprod. Bioref. 8:342–361, 2014 Keywords: Butyl Alcohol, Biomass, Biofuel, Milling

Download or read book Techno economic Analysis of Butanol Production Through Acetone butanol ethanol Fermentation written by Nawa Raj Baral and published by . This book was released on 2016 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: Butanol is a next generation liquid biofuel, which can be produced through acetone-butanol-ethanol (ABE) fermentation using lignocelluloses including agricultural residues, forest residues, and energy crops. While butanol is superior to ethanol in terms of fuel properties, its commercial production is still encumbering due to low product yield, energy intensive recovery method and butanol toxicity to microbes. However, recent developments of simultaneous saccharification, fermentation and recovery techniques have potential to reduce these problems and improve butanol yield. Before commercial deployment, these recent developments on ABE fermentation technology require a thorough assessment of techno-economic feasibilities and bottlenecks. Thus, the main objective of this research was to assess the techno-economic feasibility of a biorefinery producing 113.5 million liters per year (30 million gallons per year) butanol through ABE fermentation. This study compared different components of butanol production system including feedstock supply logistics, pretreatment, fermentation and recovery, and stillage utilization methods. All the techno-economic models were developed in modeling software-SuperPro Designer. Different process and operating parameters for different components were gathered from existing literature and used as the main input to the models. Corn stover feedstock supply logistics cost ($/metric ton, dry) was estimated to be 112.1 when corn stover feedstock was assumed to be directly transported from field edge to biorefinery. This mode of feedstock transportation was found to be feasible for the biorefinery capacity considered in this study. Sulfuric acid pretreatment was found to be the most economic process with sugar production cost ($/kg) of 0.42 when compared to other most common pretreatment processes considered in this study such as steam explosion, ammonia fiber explosion, ionic liquid and biological. Based on current state of these different recovery methods, such as conventional distillation, vacuum recovery, gas stripping and liquid-liquid extraction, the lower butanol production cost ($/L) of 1.27 ($1.54/L-gasoline equivalent) was found under gas stripping recovery method. Other recovery methods require further research and development efforts to be competitive with gas stripping. Moreover, estimated stillage processing cost ($/L-butanol produced) of direct combustion system and fast pyrolysis system were found to be 0.15 and 0.17, respectively. Based on current state of technology, stillage utilization with direct combustion was found to be an economic stillage utilization method due to the lower stillage utilization cost. Integrating the most economic options discussed so far, the butanol production cost ($/L) at 95 % confidence interval was found to be 0.69-1.57 and 1.34-2.53 with and without considering byproducts’ credit, respectively. Energy conversion efficiency for the overall butanol production process was about 53.83 %. With further improvement in butanol yield of 30 g/100 g fermentable sugars, 98 wt% butanol recovery, glucose and xylose yield of 90 g/100 g initial glucan and xylan, feedstock supply cost of $64/metric ton (dry) and commercial selling value for acetone of $0.79/L, butanol production cost through ABE fermentation could be reduced to $0.47/L-butanol ($0.57/L-gasoline equivalent). This cost is very optimistic at present state of technology, which requires further research and development efforts to be economically competitive with last two years average corn ethanol cost of $0.37/L ($0.55/L-gasoline equivalent) and last 15 years average gasoline price of $0.65/L.

Download or read book Butanol Production from Lignocellulosic Feedstocks by Acetone butanol ethanol Fermentation with Integrated Product Recovery written by Congcong Lu and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: n-Butanol has been attracting research attention as a liquid biofuel recently, in addition to its current application as an industrial chemical and solvent. With the concerns of diminishing fossil reserves, environmental issues caused by greenhouse gas emission, and unstable supply and price spike of crude oil, renewed interest has returned to pursue biobutanol production through acetone-butanol-ethanol (ABE) fermentation as opposed to petrochemically-derived butanol. However, the conventional ABE fermentation suffers from many limitations, including low butanol titer, high cost of traditional food-based raw materials, end-product inhibition and high butanol recovery cost by distillation, which negatively impacts the process efficiency and economics. Fortunately, these hurdles are being overcome by technological advances on ABE fermentation in the past few decades. Research on genetic modifications and chemical mutation of solventogenic Clostridia has focused on obtaining mutant strains with enhanced butanol producing ability. Adequate research success in utilizing renewable and sustainable lignocellulosic biomass has identified a novel group of cost-effective feedstocks for ABE fermentation in replacement of the traditional costly starch and sugar-based substrates. Novel fed-batch and continuous fermentation processes with cell immobilization and cell recycle have been developed for more efficient substrate conversion and butanol production. When further integrated with alternative energy-efficient butanol recovery techniques, such as gas stripping and pervaporation, the integrated ABE fermentation process can achieve high overall butanol production, reactor productivity, sugar conversion, and simplified downstream separation. Therefore, the overall goal of this project was to develop a process to produce butanol through ABE fermentation by hyper-butanol-producing mutants using lignocellulosic biomass, and integrate online product recovery to achieve enhanced overall butanol production and process efficiency. Corn fiber, cassava bagasse, wood pulp and sugarcane bagasse were investigated as potential feedstocks for butanol production from ABE fermentation, and gas stripping as the online butanol recovery technique was evaluated and integrated with ABE fermentation. In batch fermentations, immobilized mutant strain C. beijerinckii JB 200 produced 12.7 g/L and 15.4 g/L ABE from corn fiber hydrolysate and cassava bagasse hydrolysate in a fibrous bed bioreactor, respectively. C. beijerinckii CC101 produced 11.35 g/L ABE from wood pulp hydrolysate, and its recombinant mutant CC101-SV6 produced 9.44 g/L ABE from sugarcane bagasse hydrolysate in free-cell batch fermentations. ABE production from wood pulp hydrolysate was further enhanced to 17.73 g/L in a gas stripping integrated ABE batch fermentation process, with a higher ABE yield of 0.44 g/g compared with 0.39 g/g from non-integrated batch process. Concentrated cassava bagasse hydrolysate containing 584.4 g/L glucose was utilized by C. beijerinckii JB 200 in an integrated fed-batch ABE fermentation process, and 90.3 g/L ABE were produced with a productivity of 0.53 g/L. h, which was further improved to 108.5 g/L with nutrient supplementation. This project demonstrated that butanol can be produced from various lignocellulosic feedstocks, from agricultural biowastes to woody biomass residues. By employing mutant strains of solventogenic Clostridia bacteria, different fermentation modes, and online product recovery, an integrated process was developed for the production of n-butanol that can potentially replace petroleum-based butanol.