Hydrogen production by steam-gasification of carbonaceous materials using concentrated solar energy—IV. Reactor experimentation with vacuum residue

Thermochemical energy storage by consecutive reactions for higher efficient concentrated solar power plants (CSP): Proof of concept

“…Proposed mechanisms to store thermal energy are based on different physical or chemical principles: sensible heat (molten salts, solid particle materials, etc. ), latent heat by means of phase change materials (PCM), and thermochemical heat storage (TCS) using thermochemical materials (TCM) [7][8][9][10][11][12][13]. Nowadays, the use of molten salts is the most viable alternative for TES coming from solar heat to supply intermittent power demand.…”

Steam gasification of coal cokes by internally circulating fluidized-bed reactor by concentrated Xe-light radiation for solar syngas production

“…The concepts of solar receiver-reactors, used for driving the solar gasification process, have been demonstrated for solar gasification reactors including direct-absorbing particle bed [4,5], molten salt pool [6], vortex-flow [7,8], particle-flow [9], and packed-bed [10] designs. Indirect-absorbing particle reactors have been scaled-up to pilot plant stage and experimentally tested for solar gasification of carbonaceous materials [9,10].…”

Application of solar energy in the oil industry—Current status and future prospects

“…An initial, thorough, thermodynamic and kinetic analysis of the gasification of petroleum coke to produce hydrogen showed a nearly 50% reduction in CO 2 emission [73]. Further experimental work by Z'Graggen et al [74][75][76][77] resulted in the design of a solar reactor for the gasification of various carbonaceous materials, including petroleum coke, waste material, and vacuum residue. The solar reactor is a 5-kW prototype tested in a high-flux solar furnace at temperatures in the range of 1025 to 1525 1C for steam gasification of coke.…”