It is attempt in pulverized coal injection (PCI) in blast furnace tuyeres to increase the injection rate without increasing the amount of unburned char inside the stack of the blast furnace. The unburned char can cause problems in the blast furnace operation, such as reduced permeability, undesirable gas/temperature distribution, excessive coke erosion and significant char carryover. In the nea...

Several mesoporous nickel-based catalysts with MgO-Al2O3 as the catalyst support were prepared using a co-precipitation method at a constant pH. The supports were prepared from the decomposition of an Mg-Al hydrotalcite-like structure which had already been prepared with Mg/Al=1. Prior to impregnating 10 wt.% nickel on the supports, the precursor was decomposed at several ...

In this report, we introduce a novel and commercially viable method to recover renewable hydrogen and carbon nanotubes from waste glycerol produced in the biodiesel process. Gas-phase catalytic reforming converts glycerol to clean hydrogen fuel and by replacing the problematical coke formed on the catalyst with high value carbon nanotubes, added value can be realised. Additional benefits of aro...

Abstract Biomass pyrolysis performance is improved through co-pyrolysis with hydrogen rich plastic producing more liquid fuel products of higher quality. Furthermore, beyond the synergetic effect, in catalytic presence may facilitate contact between catalyst and biomass. In this study, effect pretreatment plastic/biomass was investigated, order to further improve above aims. The first method pr...

The article presents the results of a theoretical study on determining suitability using electrical contact gaskets (ECG) in industrial conditions (Castner direct graphitization furnaces), made coke-pitch composite additive technologies based Fused Deposition Modeling (FDM) method.
 Numerical analysis physical state ECG under application was performed basis mathematical statement thermo-el...

A mechanistic model on catalyst deactivation by coke formation in a continuous stirred tank reactor (CSTR) has been developed the paper. Catalyst was treated as surface reaction. Four reaction mechanisms representing through different routes were proposed. The evolved system of ordinary differential equations (ODEs) solved numerically using MATLAB. This approach validated applying it to skeleta...

Catalyst deactivation involves a complex interplay of processes taking place at different length and time scales. Understanding this phenomenon is one the grand challenges in solid catalyst characterization. A process contributing to carbon deposition (i. e., coking), which reduces activity by limiting diffusion blocking active sites. However, characterizing coke formation its effects remains c...