Energy conservative brown coal conversion to hydrogen and power based on enhanced process integration: Integrated drying, coal direct chemical looping, combined cycle and hydrogenation

Development and techno-economic analyses of a novel hydrogen production process via chemical looping

“…A number of studies have been done, modelling CLWS with gaseous [5] (syngas chemical looping process (SCL) integrated with gas turbines for power generation), [7,19] (iron oxide chemical looping with natural gas fuel), [21] (iron oxide chemical looping in three moving bed reactors with natural gas fuel together with a study of oxygen carrier selection), [22] (iron oxide chemical looping integrated with combined cycle power generation using natural gas or syngas), [23][24][25] (chemical looping with iron oxide oxygen carrier integrated with combined cycle using natural gas fuel). Additionally, solid fuels have been tested [9] (coal direct chemical looping (CDLC) for H2 and power production using an iron oxide oxygen carrier), [26] (iron oxide chemical looping using biomass (sawdust) and coal fuel coupled with combined cycle for power generation), [27] (comparison between the SCL and CDCL using iron oxide oxygen carrier), [28] (iron oxide chemical looping of biomass integrated with other chemical looping combustion process which uses Cu based oxygen carrier, also calcium oxide looping of biomass is proposed), [29] (iron oxide chemical looping with brown coal fuel integrated with the power cycle), [30] (SCL with black liquor fuel using iron oxide), [31] (CDCL with Fe and Cu bi-metallic oxygen carrier) and liquid fuels [32]. These studies have focused on process modelling and thermodynamic evaluation, including the overall thermal efficiency, and understanding the variables impacting the gas and solid conversions, together with the overall product efficiencies [2,7,19,23,25,27,31,32].…”

Insight into the adsorption of a liquid organic hydrogen carrier, perhydro-i-dibenzyltoluene (i = m, o, p), on Pt, Pd and PtPd planar surfaces

“…Hydrogen and its associated technologies is one such solution. 1,2 This is because hydrogen can be generated from both renewable energy sources and fossil fuels, 15,17,[26][27][28][29] it is a clean energy carrier, 14,23,30 and it can be used for both stationary and mobile power applications (e.g., H 2 fuel cell vehicles.) 9,23,[30][31][32] However, despite marked improvements in both hydrogen utilization and production, the application of hydrogen-based technologies in the current market landscape is hampered by its storage and delivery.…”

Study of Kalina cycle as waste energy utilization system in Wayang Windu geothermal power plant

“…Moreover, while current investigations show that coal can be further utilized into more extensive application, e.g. integrated hydrogen production [3,4], the investigations of the geothermal energy show that the utilization of geothermal power plant are limited to the direct use of the heat or electricity generation. Therefore, the utilization of the energy has to be performed adjacent to the energy source.…”