By Jhuma Sadhukhan
As the variety of feedstocks, procedure applied sciences and items extend, biorefineries becomes more and more complicated production structures. Biorefineries and Chemical techniques: layout, Integration and Sustainability Analysis offers method modelling and integration, and entire method existence cycle research instruments for the synthesis, layout, operation and sustainable improvement of biorefinery and chemical processes.
Topics coated include:
Introduction: An advent to the idea that and improvement of biorefineries.
Tools: integrated listed below are the equipment for special monetary and environmental effect analyses; mixed financial price and environmental effect research; existence cycle evaluation (LCA); multi-criteria research; warmth integration and application method layout; mathematical programming established optimization and genetic algorithms.
Process synthesis and design: makes a speciality of sleek unit operations and leading edge method flowsheets. Discusses thermochemical and biochemical processing of biomass, creation of chemical compounds and polymers from biomass, and techniques for carbon dioxide capture.
Biorefinery systems: offers biorefinery approach synthesis utilizing complete procedure research. Discusses bio-oil and algae biorefineries, built-in gas cells and renewables, and heterogeneous catalytic reactors.
Companion website: 4 case stories, extra routines and examples can be found on-line, including 3 supplementary chapters which handle waste and emission minimization, strength garage and keep an eye on structures, and the optimization and reuse of water.
This textbook is designed to bridge a spot among engineering layout and sustainability evaluation, for complex scholars and practising method designers and engineers.
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Extra resources for Biorefineries and Chemical Processes: Design, Integration and Sustainability Analysis
Chemical composition plays a major role in defining the processes for pretreatment and further processing of biomass. Feedstocks rich in sugars can be readily fermented, whilst starch rich feedstocks need an enzymatic pretreatment to release the sugars for fermentation. High protein content can be a negative factor for bioethanol production from wheat, thus needing pre-extraction by mechanical processes such as pearling before the saccharification and fermentation to bioethanol production. The processes of arabinoxylan extraction from wheat bran before fermentation to bioethanol production are shown in detail in the literature4–6 .
The concept was developed by analogy to the complex crude oil refineries adopting the process engineering principles applied in their designs, such as feedstock fractionation, multiple value-added productions, process flexibility and integration. For sustainable biorefinery design, the nature and range of alternatives for feedstocks, process technologies, intermediate platforms and products are important to know. In this chapter, the fundamental features and principles of biorefinery configurations are introduced alongside some research problems, concepts and tools to assess the sustainability of biorefineries.
A network structure including all possible inter- and intraprocess connections is called a superstructure. A superstructure poses a great engineering and mathematical challenge to solve for optimal network configurations. 3 shows a network including some possible configurations mentioned and their combinations for biorefineries2 . It can be seen from this network that feedstocks can be converted to almost any platform in one or several steps. In addition, one particular product can be produced from different combinations of feedstocks and using different processing pathways.