Experimental study of methane explosion suppression by dopamine-coated powder

Natural gas is an important clean energy source, occupying an increasingly important position in the composition of energy consumption. However, its safety issues cannot be underestimated and are highly worth studying. This article conducted methane explosion experiments on the self-developed acrylic pipeline experimental platform, using Al(OH)₃ and NaHCO₃ powder, and dopamine powder. After a series of centrifugation, purification, catalysis, stillness, and high-temperature drying steps, the modified polydopamine-coated powder was obtained. To reduce the impact of methane explosion, the self-polymerization of dopamine to synthesize polydopamine was studied. Finding the optimal coating concentration through multiple sets of experiments. Conduct experiments on dopamine-coated aluminum hydroxide and powder to suppress explosions under different concentrations of methane conditions, and study the effect of polydopamine-coated aluminum hydroxide and sodium bicarbonate powder on methane explosions at different concentrations.