4.5 Article

A Developed Plasmatron Design to Enhance Production of Hydrogen in Synthesis Gas Produced by a Fuel Reformer System

Journal

ENERGIES
Volume 15, Issue 3, Pages -

Publisher

MDPI
DOI: 10.3390/en15031071

Keywords

plasma; fuel reforming; syngas production; plasma torch

Categories

Funding

  1. Water and Energy Research Institute, King Abdulaziz City of Science and Technology [33-906]

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Feeding internal combustion engines with hydrogen-rich syngas as an admixture to hydrocarbon fuels can reduce pollutant emissions, especially NOx. This study investigates the effect of plasma torch assembly design on gasoline reforming and explores the erosion resistance of cathode-emitting materials.
Feeding IC engines with hydrogen-rich syngas as an admixture to hydrocarbon fuels can decrease pollutant emissions, particularly NOx. It offers a potential technique for low-environmental impact hydrocarbon fuel use in automotive applications. However, hydrogen-rich reformate gas (syngas) production via fuel reforming still needs more research and optimization. In this paper, we describe the effect of a plasma torch assembly design on syngas yield and composition during plasma-assisted reforming of gasoline. Additionally, erosion resistance of the cathode-emitting material under the conditions of gasoline reforming was studied, using hafnium metal and lanthanated tungsten alloy. The gasoline reforming was performed with a noncatalytic, nonthermal, low-current plasma system in the conditions of partial oxidation in an air and steam mixture. To find the most efficient plasma torch assembly configuration in terms of hydrogen production yield, four types of anode design were tested, i.e., two types of the swirl ring, and two cathode materials while varying the inlet air and fuel flow rates. The experimental results showed that hydrogen was the highest proportion of the produced syngas. The smooth funnel shape anode design in Ring 1 at air/fuel flow rates of 24/4, 27/4.5, and 30/5 g/min, respectively, was more effective than the edged funnel shape. Lanthanated tungsten alloy displayed higher erosion resistance than hafnium metal.

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