Three-reactor chemical looping (TRCL) is a hydrogen and electricity production technology with inherent separation of carbon dioxide by use of the iron-based oxygen carrier particles. In this study, an integrated continuous operation test unit (300Wth) using 20wt% Fe2O3/ZrO2as an oxygen carrier...

The reaction kinetics of drying, pyrolysis and combustion of paper sludge have been determined in a thermogravimetric analyzer (TGA). The effects of heating rate (5–30 K min−1) and sample weight (10–50 mg) on drying and pyrolysis of paper sludge have been determined. The kinetic parameters...

Coal pyrolysis and gasification reactions were carried out in a fluidized-bed reactor (0.1m i.d. by 1.6m height) over a temperature range from 1023 to 1173K at atmospheric pressure. The overall gasification kinetics for the steam–char and oxygen–char reactions were determined in a...

The effects of gasification temperature (850–1000°C) and partial pressure of CO2 (0.3–1.0 atm) on gasification rate of tire-char/CO2 have been determined in a thermobalance reactor. The gasification rate was found to be independent of char size for sizes less than 0.65 mm and initial sample...

The effects of feed rate of waste tires (0.21*0.52 kg/h), oxygen concentration (0–11%), pyrolysis temperature (700–800°C), and fluidizing gas velocity (1.5−3.0 μmf) on product (gas, oil, char) yield, composition, energy recovery, and heating value of the product gas have been determined...

Heat-transfer characteristics during melting of magnesium chloride hexahydrate (MgCl2·6H2O  MCHH) have been determined for circular finned- and unfinned-tube systems. The effects of inlet temperature and flow rate of the heat transfer fluid (HTF) on the heat-transfer characteristics have...

The effects of bed temperature (700–900 °C), freeboard temperature (600–800 °C) and excess-air ratio (0–100%) on CO, NOx and SO2 emissions, axial temperature profiles, and combustion efficiency of shredded waste tires have been determined in a 76.2 mm i.d. × 1.2m high fluidized-bed...

Heat-transfer characteristics have been determined for the circular finned and unfinned-tube units during the freezing of magnesium chloride hexahydrate (MgCl2 · 6H2O) used as a phase-change material (PCM) with a melting temperature of 116.7 °C. The effects on the heat-transfer characteristics...

The heat-transfer characteristics of cool-thermal storage units during the charging period were studied with 2 wt% of sodium sulfate decahydrate in aqueous solution as the phase-change material. Vertical and horizontal tube systems were compared with respect to heat-transfer rate, coefficient of...

A super-absorbent polymer made from an acrylic acid copolymer is proposed as an effective thickener to prevent undesirable phase separation of disodium sulfate decahydrate (Glauber's salt). The supercooling of the thickened Glauber's salt is reduced to 3–4 °C by using a borax as a nucleating...