Design of clean energy systems is highly complex due to the existence of a variety of CO2 abatement and integration options. In this study, an effective decision-making methodology has been developed for facilitating the selection of lowest energy or lowest cost intensity systems, from a portfolio of flowsheet configurations with different decarbonisation strategies. The fundamental aspect of t...

Existing ore processing plant designs are often conservative and so the opportunity to achieve full value is lost. Even for well-designed plants, the usage and profitability of mineral processing circuits can change over time, due to a variety of factors from geological variation through processing characteristics to changing market forces. Consequently, existing plant designs often require opt...

The availability of high speed parallel computers and process simulators capable of rigorous flowsheet calculation has given way to new methodologies for the optimization of chemical processes. Evolutionary algorithms (EAs), derived from biological adaptation paradigms, have proven to be a powerful and robust optimizing technique even for structural optimization problems. We have adopted this m...

Data-mining of Reaxys and network analysis of the combined literature and in-house reactions set were used to generate multiple possible reaction routes to convert a bio-waste feedstock, limonene, into a pharmaceutical API, paracetamol. The network analysis of data provides a rich knowledge-base for generation of the initial reaction screening and development programme. Based on the literature ...

Methyl tertiary butyl ether (MTBE) is known as a promising substitute for tetra ethyl lead (TEL) in order to increase the octane number of gasoline. MTBE process, as many other processes, has two distinguished section, namely reaction section and separation section. In this paper we focus only on synthesis and optimization of separation section of this process. In order to achieve this obje...

Abstract In this paper, leaching characteristics are presented, and a cost-effective process for extracting uranium, copper, cadmium from Talet Seleim’s Gibbsite is developed. H 2 SO 4 was chosen as the preferable agent based on agitation experiment’s findings. The efficiencies of U, Cu, Cd attained 95%, 90%, 89%, respectively, under investigated ideal circumstances. Kinetic study proved diffus...

Structural multiplicity has a significant effect on the solution of an MINLP model for process synthesis problems. The optimization model may also have built-in redundancy that cannot always be directly derived from the multiplicity of the superstructure. A basic GDP representation (BGR) involving logical relations is defined, and can be constructed by applying a standard natural representation...

The essential problems, namely representativeness and uniqueness, in defining mixed integer non-linear programming (MINLP) representation (MR) is solved in Part I by first defining a basic MR (BMR) that: (1) can be automatically constructed from an easier formable standard GDP representation and (2) serves as a reference representation. Binary and continuous multiplicity of MR are also defined ...