Catalytic Studies of Sodium Hydroxide and Carbon Monoxide Reaction

Abstract

Abstract:We have studied the effect of ball milling on alumina mixed nickel, magnetite and Raney nickel on the reaction: 2NaOH(s) + CO (g) = Na 2 CO 3 (s) + H 2 (g) and determined the optimum particle size for the catalysts. The best performance was shown by a 2 h ball milled Raney nickel with average crystallite size of 209 Å. This reaction serves the dual purpose of carbon sequestration and yielding hydrogen gas.

Mechanistic insights into the CO2 capture and reduction on K-promoted Cu/Al2O3 by spatiotemporal operando methodologies

“…Alkali hydroxides such as NaOH and KOH are known to efficiently react with CO to form K 2 CO 3 with release of H 2 (reaction (13)). 44,45 2KOH + CO = K 2 CO 3 + H 2 Similarities to the CO 2 -based CCR experiment are evidenced also in the reduction phase. When H 2 is sent to the reactor (595 s), a fast intense release of CO is detected at the outlet, associated with a drastic decrease in intensity of the surface carbonates bands.…”

“…Alkali hydroxides such as NaOH and KOH are known to efficiently react with CO to form K 2 CO 3 with release of H 2 (Reaction 13). 44,45 (13…”

Biomass conversion to H2 with substantially suppressed CO2 formation in the presence of Group I & Group II hydroxides and a Ni/ZrO2 catalyst

“…This observation is supported by literature which shows that CO can react mildly with NaOH to produce H 2 . 42 Overall, the results in Fig. 1 show that Group I hydroxides show advantages in converting cellulose to H 2 , which include higher conversion to H 2 , lower H 2 formation temperatures and suppressed CO x .…”

A new low carbon cementitious binder for stabilising weak ground conditions through deep soil mixing

“…Although the 546 use of NaOH in this paper promoted pozzolanic conditions and high strength gains within stabilised samples, its 547 production involves the electrolysis of brine, which is energy intensive and produces considerable CO 2 emissions. 548 source could be the by-product from existing chlor-alkali plants (Kumar et al, 2012). The GGBS CO 2 reductions far outweigh the carbon footprint produced by the NaOH's manufacture.…”