Correction of depreciation in TEA model. In the techno-economic model spreadsheet of the original article, there is a sign error in the depreciation column, leading to a small error in the calculation of the net-present value. An updated version of the spreadsheet corrects this error, and corrected versions of the affected Figures 4, 6, and 7 are shown below. We note that this error leads to a similar

Fischer–Tropsch synthesis (FTS) has been studied for decades, however, it is very difficult to simultaneously obtain high one-pass CO conversion and high selectivity of long-chain (C5+) hydrocarbons. A layered CoMn/TiO2 catalyst is fabricated and used as an efficient catalyst in FTS. The unique layered structure of the CoMn/TiO2 catalyst effectively inhibits the agglomeration of Co nanoparticles, and

Ultrasound standing waves can be used to separate emulsions. So far, they have been applied to oil-in-water emulsions with low continuous phase viscosity. There is a potential to use this technique for novel applications such as separating lipids from algal biomass, however this requires the methodology to be optimised to process viscous emulsions. We have addressed this issue by studying the effects

Polyelectrolyte with abundant ionizable groups always possesses excellent adsorption capacity for metal ions. However, these polymer chains are limited for direct application, resulting from lacking fixed shape. In this paper, polypropylene (PP) fiber decorated with a high density polyacrylic acid (PAA) brushes was prepared using modified ultraviolet-induced graft technology, which was used as efficient

Metastable zone widths (MSZWs) are one of the crucial parameters in solution crystallization process optimization whose accuracy would determine crystalline product quality and process robustness. In this paper, the MSZWs of Lithium carbonate reactive crystallization were measured by turbidity technology during the reactive crystallization process of Li2CO3. Three semiempirical models were used to

Nitrogen-containing activated carbons are a new type of porous carbon materials with excellent performance in electricity storage, catalysis and the selective adsorption, but the low-cost preparation remains a technical obstacle for practical application. In this work, ammonia activation is developed to prepare nitrogen-containing activated carbons from abundant and sustainable biomass-based chars

The rapid growth of industry and economy and the increase in incomes have led the influx of people to big cities and thus a sharp increase in waste production. Inappropriate waste management damages city infrastructure and affects the community health and environment. Governments need to plan and implement integrated management from the waste production to final disposal for achieving sustainable solution

The diffusion behavior of a typical disperse dye, disperse red 9 (DR 9), in the polyethylene terephthalate (PET) film at different temperatures was investigated by ATR-FTIR and 2D correlation spectroscopy (2Dcos) analyses. According to the Fickian Diffusion Model, the calculated diffusion coefficients of DR 9 in the PET film at different temperatures were observed to increase with temperature, which

CO2 capture and storage (CCS) is an effective way to reduce greenhouse gas emissions, density-driven background flow in some deep saline aquifer is of interest in the geo-engineering flield, which can enhance dissolution rates compared with diffusion process. This study aimed to investigate the instability of dissolution-driven convection using high-resolution magnetic resonance imaging (MRI) technology

Figuring out the wetting behavior and interfacial structure of ionic liquids (ILs) droplets on solid surfaces are imperative for the new IL-based application in the field of chemical engineering. In this work, the quantitative relations between the wetting properties and solid surface property are explored through molecular dynamics simulations. Interestingly, two different equilibrium configurations

Fluids confined in nanoporous materials exhibit thermodynamic properties that differ from the same fluid in bulk. Recent experiments and molecular simulations suggested that isothermal compressibility is among these properties. The compressibility determines the elastic response of a fluid to mechanical impact, and in particular, the speed of acoustic wave propagation through it. Knowledge of the compressibility

Lignin represents the largest renewable source of aromatic compounds in nature, and the production of value-added aromatic compounds from lignin can reduce the dependence on fossil feedstocks. Here, a number of unsupported nickel-based catalysts were prepared from the decomposition of nickel formate, and were employed for the depolymerization of enzymatic hydrolysis lignin (EHL) in a batch reactor

In a traditional fault detection and diagnosis (FDD) scheme, all of variables in a multivariate system are examined together as a single group. This FDD scheme may suffer from the amplification and masking effects that are caused by introducing fault-free variables in the fault detection index, especially for a multivariate system with a large number of variables. To overcome this problem, a new FDD

A major difficulty in operating biorefinery processes is the large feedstock variability. A systematic multivariate analysis (sMVA) strategy for improved process understanding of industrial biorefinery processes is proposed to support identification of effects of feedstock and process variability on product quality. This sMVA strategy comprises nine steps categorized in dataset organization, exploratory

Bioremediation of polluted soils via bioslurry reactors is an interesting option among those available nowadays, especially when recalcitrant pollutants are present. Vortexing unbaffled stirred tanks may be a valuable choice to this purpose as they were recently found more efficient than baffled vessels for solid suspension processes where mixing time is not a controlling factor. When operated at agitation

A novel rotating microchannel (RM) is made in our lab, which is used for demulsification study in this paper. D2EHPA-water emulsion without surfactant and the kerosene-water emulsion with emulsifier (SDS) were considered. The influence of emulsion type, inner cylinder speed, declination angle, volumetric flow rate of emulsion and cycle time on demulsification were investigated. The results showed that