A survey on current advanced IGCC power plant technologies, sensors and control systems

Modelling and optimization of a pilot-scale entrained-flow gasifier using artificial neural networks

“…Mean square errors obtained during training, validation, and testing, using the 18. Identification results for combination of load-following and co-firing Table 1. Advantages and disadvantages of different types of gasifiers 25 3. Key gasifier input and output parameters •…”

“…The performance of a gasifier can be described by the conversion of its reactants, the concentration of its desired products at the gasifier's outlet and the temperature distribution throughout the unit. 25 In addition, the viscosity and thickness of the deposited ash slag are two additional essential system parameters that can be used to characterize the dynamic performance of the gasification unit. At the reactor outlet, critical system parameters such as the carbon conversion and the molar fraction of key gasifier syngas products (i.e., CO and H2) provide important measurements that indicate the performance of the gasification unit and its ability to convert the solid input fuel into a more-desirable syngas.…”

“…Sahraei et al 13 The performance of a gasifier can be described by the conversion of its reactants, the concentration of its desired products at the outlet, and the temperature distribution throughout the unit. 25 In the ROM model, the carbon conversion is the main important output parameter for characterizing the gasifier performance, as it serves to measure the fraction of solid coal converted into the more useful syngas form. In addition, the gasifier products, i.e., CO and H2, provide a much lower heating value and require lower operating temperatures, and thus they are able to achieve much greater efficiency than their solid fuel alternatives.…”

“…Specifically, the peak temperature of the gasifier are monitored in order to keep it below the maximum temperature that the refractory brick layer within the gasifier can bear. 25 Furthermore, standard measurement devices such as thermocouples are often used in industrial reactors to monitor the temperature at key locations inside the unit. For the specific IGCC gasifier unit considered in the ROMs model work, there are four thermocouples located on the wall of the gasifier reactor, so that the operations can observe and monitor the temperature distribution at these discrete locations.…”

Performance Analysis of a New Electricity and Freshwater Production System Based on an Integrated Gasification Combined Cycle and Multi-Effect Desalination

“…The integrated gasification combined cycle (IGCC) combines a solid fuel gasification unit with an integrated gas turbine-steam power plant to enhance performance and achieve higher efficiency [6]. To enhance the power generation capacity, the off-gases of the gas turbine are used as an energy source to drive a steam cycle through a heat recovery steam generator (HRSG) [7]. For instance, Soltani et al [8] analyzed an integrated biomass gasification and gas turbine combined cycle from energy and exergy perspectives.…”