After extraction, dust coal is classified in the list of bad coal due to low heat quantity and difficult consumption. Dust coal was mainly exported to the Chinese market to serve for a number of thermoelectricity plants.

To take advantage of bad coal, the Vietnam National Coal-Mineral Industries Holding Corporation Limited (Vinacomin) actively found out measures. As a result, CFB is considered a useful solution to thoroughly resolve bad coal. CFB is a combustion technology, contributing to taking advantage of bad coal for furnace. In particular, CFB does not need to use machinery and equipment to reduce gas emissions. In addition, post-production products can be used to produce other products.

For example, the Cam Pha Thermoelectric Power Plant used CFB in production activity. CFB has proven to be a clean and appropriate technology for handling bad coal. The plant has completely used 6b dust coal for power generation. In addition, the plant has also used coal and limestone combustion technology to get rid of sulfur and the electrostatic dust filter system to control gas emissions. Moreover, ashes in the production process have been limited at a low level. In particular, the remaining waste can be utilized to produce adobe bricks.

Another example is the Mao Khe Thermoelectricity Plant. The plant has currently used two CFBs for power generation. CFBs in the plant are able to get rid of sulfur by using coal and limestone combustion technology, contributing to reduce gas emissions into the environment. In addition, the usage of the self-contained sewage system has also helped minimize the amount of wastewater into the environment. The successful usage of CFB confirmed that cleaner production had brought benefits in terms of energy efficiency, material usage and emission reduction as well as helped thermoelectricity plants develop production.

According to the electricity planning, by 2020, the country needs to invest in 52 thermoelectricity plant projects, contributing to reaching a capacity of 36,000MW. By 2030, a capacity of thermoelectricity plants is expected to reach 75,748MW, accounting for 51.6 percent of a total capacity of the entire system. The usage of CFBs for thermoelectricity plants has not only opened a new direction for the development of thermoelectricity plants but also contributed to taking advantage raw materials towards cleaner production. In addition, the usage of CFBs has helped the government reduce a pressure on imported coal./.