scholarly journals Process simulation and techno-economic assessment for direct production of advanced bioethanol using a genetically modified Synechocystis sp.

2019 ◽  
Vol 6 ◽  
pp. 113-122 ◽  
Author(s):  
Tiago F. Lopes ◽  
Catarina Cabanas ◽  
André Silva ◽  
Diana Fonseca ◽  
Edgar Santos ◽  
...  
Keyword(s):  
Process Simulation ◽  
Genetically Modified ◽  
Economic Assessment ◽  
Direct Production ◽  
Synechocystis Sp

Process Simulation and Economic Analysis of Rhamnolipid Production by Pseudomonas aeruginosa Using Oil Palm Empty Fruit Bunch as Substrate

2021 ◽  
Vol 104 ◽  
pp. 103-112
Author(s):  
Andrea Gilang Fauzi ◽  
Cut Nanda Sari ◽  
Andre Fahriz Perdana Harahap ◽  
Muhammad Yusuf Arya Ramadhan ◽  
Misri Gozan
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Oil Palm ◽  
Process Simulation ◽  
Production Cost ◽  
Economic Assessment ◽  
Industrial Applications ◽  
Empty Fruit Bunch ◽  
Rhamnolipid Production ◽  
Surfactant Production ◽  
Purification Methods

Surfactants are amphiphilic molecules that have been used in widely used as emulsifier and cleaning agent in various industries. These broad industrial applications made the global surfactant production increased annually. In 2020, the amount of global surfactant production estimated would reach more than 24 million per year. However, the currently used surfactants are synthetically produced from chemical or petroleum-derived products, so it is often toxic and non-biodegradable. Rhamnolipids are “surfactant like” molecules produced by Pseudomonas aeruginosa, which could be alternatives for more environmentally friendly surfactants. The use of rhamnolipids is quite limited due to its expensive production cost. The production cost of rhamnolipid could be reduced using by agro-industrial by-product as a substrate. One of the abundant agro-industrial by-products in Indonesia that can be used as a substrate for rhamnolipid production is Oil Palm Empty Fruit Bunch (OPEFB). This study employed SuperPro Designer v9.5 to performed process simulation and economic assessment of rhamnolipid production using OPEFB as a substrate through two different purification methods, which are solvent extraction and chromatography adsorption. Based on the process simulation that has been done, the process that used adsorption chromatography purification methods more efficient in terms of the usage of the feedstock and energy. The economic assessment also showed that these methods were more profitable and economically attractive, with the value of NPV 11.400.000 USD, IRR 11,64%, and Payback Period 6,21 years.

scholarly journals Techno-Economic Analysis of Vinasse Treatment Alternatives Through Process Simulation: A Case Study of Cuban Distillery

2021 ◽  
Author(s):  
Arletis Cruz Llerena ◽  
Osney Perez Ones ◽  
Lourdes Zumalacárregui de Cárdenas ◽  
José Luis Pérez de los Ríos
Keyword(s):  
Process Simulation ◽  
Electricity Generation ◽  
Industrial Effluents ◽  
Economic Assessment ◽  
Actual Condition ◽  
Animal Food ◽  
Investment Projects ◽  
Aspen Hysys ◽  
Treatment Alternatives

Abstract Purpose Vinasse is one of the organic industrial effluents with major polluting effect. The objective of this work was to perform a techno-economic assessment of vinasses treatment alternatives for valorization of this waste through process simulation with Aspen Hysys v10.0. Methods Four alternatives were studied: (A_1) incineration and electricity generation, (A_2) desalinization, (A_3) anaerobic digestion and electricity generation and (A_4) drying. The selected packages for the evaluation and prediction of properties were: Lee-Kesler-Plöcker and NBS Steam, NRTL-Ideal, Peng-Robinson-Stryjer-Vera and NBS Steam and NRTL-Ideal respectively; the validation in these cases was carried out with data reported in the literature. The economic evaluation was carried according to the changes that each alternative determines in each one of the elements of effective cash flow comparing with the actual condition. Results With the alternative A_1, fertilizers ashes are obtained removing all the residual and the energy generation. By the alternative A_2, fertilizers salts and desalinate vinasses (for animal food) were obtained. By the alternative A_3, energy is generated from biogas. By the alternative A_4, dry vinasse is obtained which is used as fertilizer and animal food. Conclusion The polluting effect of the vinasse can be reduced with the proposed treatment alternatives. It was showed that the alternatives are feasible, being the alternative A_1 the best, with a NPV of $ 1.29 MMUSD, IRR 25.5% and DPBP 2.7 years. Process simulation are a valuable supporting tool when making decisions in investment projects for valorization of vinasse from the ethanol industry.

Algal fuel production by industry: process simulation and economic assessment

2022 ◽  
pp. 635-652
Author(s):  
Sayeda M. Abdo ◽  
Entesar Ahmed ◽  
Sanaa Abo El-Enin ◽  
Guzine El Diwan ◽  
K.M. El-Khatib ◽  
...  
Keyword(s):  
Process Simulation ◽  
Economic Assessment ◽  
Fuel Production

scholarly journals Process simulation and techno-economic assessment of SER steam gasification for hydrogen production

2018 ◽  
Vol 43 (2) ◽  
pp. 569-579 ◽  
Author(s):  
Daniel Schweitzer ◽  
Friedemann Georg Albrecht ◽  
Max Schmid ◽  
Marcel Beirow ◽  
Reinhold Spörl ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Process Simulation ◽  
Economic Assessment ◽  
Steam Gasification

Process simulation and techno-economic assessment of vinasse-to-biogas in Cuba: Deterministic and uncertainty analysis

2021 ◽  
Author(s):  
Arael Alfonso-Cardero ◽  
Jhosané Pagés-Díaz ◽  
Francesco Contino ◽  
Karthik Rajendran ◽  
Junior Lorenzo-LLanes
Keyword(s):  
Uncertainty Analysis ◽  
Process Simulation ◽  
Economic Assessment

scholarly journals Process simulation of renewable electricity from sugarcane straw: Techno-economic assessment of retrofit scenarios in Brazil

2020 ◽  
Vol 254 ◽  
pp. 120081 ◽  
Author(s):  
Marcos D.B. Watanabe ◽  
Edvaldo R. Morais ◽  
Terezinha F. Cardoso ◽  
Mateus F. Chagas ◽  
Tassia L. Junqueira ◽  
...  
Keyword(s):  
Process Simulation ◽  
Economic Assessment ◽  
Renewable Electricity ◽  
Sugarcane Straw

Economic Assessment of Microwave and Radio-Frequency Materials Processing

1988 ◽  
Vol 124 ◽  
Author(s):  
Michael R. Sanio ◽  
Philip S. Schmidt
Keyword(s):  
Radio Frequency ◽  
Operating Cost ◽  
Economic Assessment ◽  
The United States ◽  
Production Costs ◽  
Materials Processing ◽  
Dielectric Heating ◽  
Heating Equipment ◽  
Cost Information ◽  
Direct Production

ABSTRACTDielectric heating has clearly demonstrated its production benefits in many materials processing applications. It is, however, a relatively expensive technology and its use vis a vis less expensive alternatives must be justified by a thorough economic analysis of all factors relevant to the given application. These include not only direct production costs, but also less easily quantified “implicit” factors such as product quality, reduced impact on the external environment, and improved workplace environment.An economic model which includes both production cost considerations and implicit factors in dielectric heating applications is under development. This paper will focus on the capital and operating costs of dielectric heating equipment and the factors which influence these costs. Capital and operating cost information was obtained from radio-frequency and microwave suppliers and consultants in the United States. Mail-out questionnaires were followed up by extensive telephone discussions to correlate and clarify data. The intent was to identify the major cost components of dielectric heating equipment and to summarize the qualitative and quantitative factors which affect them. Since microwave and radio-frequency equipment are distinctly different in design and application, they are treated separately.

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