Acid leaching is an essential unit in hydrometallurgy, yet it time consuming and requires concentrated acids. Process intensification examined for the of valuable rare earth elements (REEs), such as Ni, Co, La, Nd, Ce, from spent nickel metal hydride (NiMH) batteries using subcritical water extraction (SWE) microwave-assisted (MAE). Results SWE revealed that HCl performed better than H2SO4 HNO3...

Underground coal gasification is an alternative method for mining from thin and ultra-thin seams, which enables conversion of solid fossil fuels into combustible gases at the site occurrence. At same time, in case when seam thickness critically small effective course thermochemical reactions, it necessary to intensify process. This paper studies one possible methods process underground due infl...

A new approach for energy-saving process intensification was demonstrated by a heat integration method taking for instance the C-5 splitter distillation plant existing for extracting pure c-pentane from a petroleum hydrocarbon mixture obtained by naphtha cracking. A process simulation analysis was made without loosening the specifications of separation of the existing plant. A new process-inten...

In order to achieve process intensification for adsorption chillers and heat pumps, a new composite material was developed based on sintered aluminum fibers from a melt-extraction process and a dense layer of silico-aluminophosphate (SAPO-34) on the fiber surfaces. The SAPO-34 layer was obtained through a partial support transformation (PST) process. Preparation of a composite sample is describ...

Previous studies have established that work intensification was an important feature of European labor markets during much of the 1990s [Green and McIntosh, 2001; Green, 2001; Burchell, Lapido, and Wilkinson, 2002]. In the UK, this process was the continuation of one of the processes of change at workplaces that had begun at least several years earlier during the 1980s. Following from these fin...

As a general goal of process development and design, process intensification aims at substantially improving process performance with a wide spectrum of chemical engineering skills.1 One important area, where process intensification can play a crucial role, is to handle uncertainty. An intensified process system design that considers varying input parameters can result in a more reliable set of...

Process operability was originally proposed as an approach for the design and control of complex chemical processes. This approach has been applied to processes that are described by high-dimensional linear models. For nonlinear systems, an operability-based method for design and intensification of low-dimensional membrane reactor systems has also been reported. However, operability algorithms ...

Rotating packed bed (RPB), a novel apparatus involving process intensification (PI), has been successfully used in the chemical industry in recent decades. In this paper, we establish a connection between process integration and process intensification for which we propose a superstructure involving a RPB and a packed bed (PB) in order to determine the optimal integrated design. We describe mod...