Conversion of nitrogen compounds and tars obtained from pre-composted pig manure pyrolysis, over nickel loaded brown coal char

Decomposition of NOx Precursors during Gasification of Wet and Dried Pig Manures and Their Composts over Ni-based Catalysts

“…Compared with WPM gasification, data in Figure 3 reveal that Ni/LYBCC is active for converting N volatile from DPM pyrolysis to N 2 . The high activity of Ni/LYBCC is consistent with that reported by Li et al 10 In general, coal char gasification barely occurs below 800°C without a catalyst. 27 Tomita et al 28 reported that the welldispersed nickel particles showed high catalytic activity for brown coal steam gasification.…”

Fuel Gas Production and Plant Nutrient Recovery from Digested Poultry Manure

“…During these trials the second-stage temperature was set at 650℃ because this is the temperature at which nickel catalysts exhibit the highest activity for biomass tar decomposition (Li and Takarada, 2013). The resulting gas product yields are compared in Fig.…”

“…Pyrolysis with volatiles gasification and/or ashing are considered as promising alternative methods, because these disposal processes can significantly reduce the manure volume while also producing valuable gas products Xiao et al, 2010;Li and Takarada, 2013;Mǎrculescu et al, 2013;Torretta et al, 2013), killing disease-causing pathogens and all weed seeds in the poultry manure and balancing the plant nutrients. The tarry materials derived from poultry waste pyrolysis can be degraded under appropriate catalytic conditions at moderate temperatures.…”

“…Accordingly, the activities of Ni-based catalysts, calcined dolomites and magnesites, zeolites, olivine, and iron catalysts have all been extensively researched with regard to the catalytic decomposition of biomass tar (Devi et al, 2003;Li et al, 2007). Supported Ni catalysts were found to be very effective during tar decomposition (Li et al, 2006;Li et al, 2009) and Ni-based catalysts can also effectively transfer the N-containing species in the waste volatiles, such as NH 3 and HCN, into nontoxic N 2 gas simultaneous with the destruction of the tar (Simell et al, 1996;Li et al, 2006;Li et al, 2013). The resulting pyrolysis char and burnt ash may be used as fertilizers because they contain balanced proportions of the plant nutrients N, P, K, Mg, and Si (Zhang et al, 2009).…”

Catalytic reforming of toluene using a nickel ion-exchanged coal catalyst

“…The carbon deposition on the nickel ion can be lessened via the modification of the catalytic support [24]. The coal char support is reported to reduce the carbon deposition, where it claims that the kind of the surface carbons is influential on the coking behavior [5,25,26]. This work investigated the behavior of the coal-supported nickel catalyst during 10 h continuous operation at the lower temperature (400 C).…”