This is the first in a series of papers in which we study an efficient approximation scheme for solving the Hamilton-Jacobi-Bellman equation for multi-dimensional problems in stochastic control theory. The method is a combination of a WKB style asymptotic expansion of the value function, which...

In the past decades, genetic algorithms (GA), particle swarm optimization (PSO) algorithms, and BOX algorithms have been used in natural gas liquefaction process optimization. Since all three methods can find a solution for a given objective function but adopt different strategies and...

The mixed refrigerant (MR) process is the preferred choice for most LNG plants. However, due to the complexity of refrigerant components and parameters, and their interaction, the MR process must be optimized to take full advantage of its efficiency. The optimization of processes has received...