SECV State Electricity Commission

As stated before, volatile carbon % is considered to be one of the most important parameters of hydroliquefaction. Also a fairly good linear relationship between the volatile carbon % in coal and low temperature tar yield from coal is found in Morwell brown coals, based on the data from the State Electricity Commission of Victoria (SECV) in Australia, as shown in Fig.9 Therefore, the low temperature tar yield is also estimated to be an important parameter. In addition, the color tone of brown coal (lithotypes) is shown in this figure. From this figure, it is observed that both volatile carbon % and low temperature tar yield are in a fairly good relation to the color tone of brown coal. Thus, as proposed by the Australian researchers, the color tone of brown coal is considered to be an important parameter. 

Since 1920 Latrobe Valley brown coal has been developed for power generation. The State Electricity Commission of Victoria (SECV) wins coal from two major open cuts at Yallourn and Morwell and operates coal fired power stations which presently consume approximately 35 million metric tons per annum. In addition to power generation, small quantities of brown coal are used for briquette manufacture and char production. 

The authors wish to acknowledge the support of the State Electricity Commission of Victoria (SECV), the Victorian Brown Coal Council (VBCC), and the companies in the VBCC Industrial Participants Group. The associated drilling, logging and sampling activities were managed by the SECV s Geological and Exploration Division, and the analytical work was performed by the staff at the Herman Research Laboratory. 

It should be pointed out that the lithotype classification for brown coal does not conform to that for black coal. To date, the International Committee for Coal Petrology (ICCP) has not finalized a brown coal lithotype classification however, it is generally agreed that a lithotype classification should be based on macroscopic characteristics that can be determined in open cut faces. This principle has been followed in classifying the Latrobe Valley coals according to a system developed and used by the State Electricity Commission of Victoria (SECV) (25). 

Recently, a steam-fluidized bed drying process being implemented at a plant operated by the State Electricity Commission of Victoria (SECV), Australia, uses a heat exchanger supplied by an external high-pressure steam source to dry finely ground brown coal. A tube network immersed... 

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