Power generation from coal is an essential need to meet world"s energy demand. There are two major challenges in coal-based power generation: improving the efficiency and reducing the emissions level. In fact, these challenges have been under research for a long time. This article focuses on the recent developments of process technologies and coal treatment to improve the performance of coal-based power plant. Barriers to the adoptions of modern developments and additional needs in research are also addressed.

Liquefied petroleum gas (LPG) has already been proved as an efficient fuel and feedstock for many chemical and petrochemical industries. Hydrate formation can create serious problems in the production, transmission, storage, and end-use of LPG. Hence an adequate knowledge on hydrate formation (i.e., the effects of moisture content and pressure on the hydrate formation temperature) is crucial to maintain the process conditions out of the hydrate formation region. However the study particularly on such aspects is scarcely available in literature. Therefore the effects of moisture content and pressure on the LPG hydrate formation temperature are studied extensively. A correlation is also developed to predict hydrate formation temperature for various LPG compositions. Hydrate inhibition performances of various inhibitors are also evaluated. Aspen-HYSYS process simulator is used to perform the study. The present study provides useful information to reduce the hydrate formation of LPG.