Abstract
The special volume on green and sustainable chemistry and engineering has fourteen papers that were considered relevant to the present day issues and discussion, such as adequate use of raw materials and efficient energy, besides considering renewable sources for materials and energy; and changing economical canons towards circular economy. Businesses, governments and Society are facing a number of challenges to tread the sustainability path and provide wellbeing for future generations. This special volume relevance provides discussions and contributions to foster that desirable future. Chemicals are ubiquitous in everyday activities. Their widespread presence provides benefits to societies’ wellbeing, but can have some deleterious effects. To counteract such effect, green engineering and sustainable assessment in industrial processes have been gathering momentum in the last thirty years. Green chemistry, green engineering, eco-efficiency, and sustainability are becoming a necessity for assessing and managing products and processes in the chemical industry. This special volume presents fourteen articles related to sustainable resource and energy use (five articles), circular economy (one article), cleaner production and sustainable process assessment (five article), and innovation in chemical products (three articles). Green and sustainable chemistry, as well as sustainable chemical engineering and renewable energy sources are required to foster and consolidate a transition towards more sustainable societies. This special volume present current trends in chemistry and chemical engineering, such as sustainable resource and energy use, circular economy, cleaner production and sustainable process assessment, and innovation in chemical products. This special volume provides insights in this direction and complementing other efforts towards such transition.
Highlights
Green engineering, eco-efficiency, and sustainability are becoming a necessity for assessing and managing products and processes in the chemical industry. This special volume presents fourteen articles related to sustainable resource and energy use, circular economy, cleaner production and sustainable process assessment, and innovation in chemical products
Innovation in the chemical industry has been foundation for its evolution highlighted in the centennial anniversary of the American Institute of Chemical Engineers a list of 100 market innovations related to chemicals (Chemical Engineering Progress 2008)
From process design assessment perspective, a tool for bioethanol production from a gasification process; or as new chemical compounds we have the use of ionic liquids, in several applications, from tribology, to CO2 capture or used as solvent to produce a chemical, with its advantages and possible environmental concerns
Summary
Some examples include: 1) the assessment of dual fluidised bed systems (Corella et al 2007; Maniatis 2008; Molino et al 2016), where heat for the gasification fluidised bed is provided by biomass combustion in a second fluidised bed, balancing the process energy requirements; gasification products can be used in power systems and thermal processes; 2) an air-steam gasification process simulation, using Aspen Plus and Fortran programming, for a bubbling fluidised bed reactor, using gasification temperature, steam to biomass ratio, and particle size (Beheshti et al 2015); 3) a simulation of a circulating fluidised bed for biomass gasification using a set of homogeneous and heterogeneous reactions, as well as hydrodynamic bed behaviour (Miao et al 2013); 4) gasification with steam in an experimental fluidised bed gasifier to produce hydrogen with integrated catalytic adsorption and taking into account the influence on performance of several process variables, concluding that catalyst and adsorbent interaction improves gas heating values increasing hydrogen composition (Khan et al 2014); and 5) the use of perovskite-type catalysts for steam gasification of a slurry mixture of bio-oil and bio char to maximise hydrogen yield (Yao et al 2016) In this sense recycling precious and scarce metals contained in waste electrical and electronic equipment will foster this strategy (Chancerel et al 2009). This special volume presents fourteen articles related to sustainable resource and energy use (five articles), circular economy (one article), cleaner production and sustainable process assessment (five article), and innovation in chemical products (three articles)
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