A million-microchannel multifuel steam reformer for hydrogen production

Design of Optimization-based Controllers Applied to an Ethanol Steam Reformer for Hydrogen Production

This paper focuses on the control of a low-temperature ethanol steam reformer for in-situ hydrogen production. For this purpose, three optimization-based control configurations are proposed, namely, a linear model-based predictive controller, a linear quadratic regulator with output error integral action and a cascade control combining the two previous configurations. In all cases, control obje...

2D Heat and Mass Transfer Modeling of Methane Steam Reforming for Hydrogen Production in a Compact Reformer

Compact reformers (CRs) are promising devices for efficient fuel processing. In CRs, a thin solid plate is sandwiched between two catalyst layers to enable efficient heat transfer from combustion duct to the reforming duct for fuel processing. In this study, a 2D heat and mass transfer model is developed to investigate the fundamental transport phenomenon and chemical reaction kinetics in a CR ...

Particle Development in a Fluidized Bed Black Liquor Steam Reformer

Low-temperature gasification of black liquor is a new alternative to the conventional Tomlinson recovery boiler for recovering pulping chemicals and energy from black liquor in pulp and paper mills. This process can be carried out in a fluidized bed based on steam reforming at 600 C using indirect heat supplied via heat exchangers built into the fluid bed. As black liquor is injected into the b...

Spiral Methanol to Hydrogen Micro-Reformer for Fuel Cell Applications

Smart Manufacturing: Application to an Industrial Scale Steam-methane Reformer

Manufacturing industry has witnessed a gradual transition from being a heuristic-driven labor-intensive set of processes to a sophisticated set of automation and model-driven processes where each operation unit in the production chain is automatically controlled and operated at a preset optimum regime. While incremental improvements in overall manufacturing efficiency have been steered by advan...