Serpong – BRIN Public Relations. Indonesia has measured coal reserves which are predominantly located in Kalimantan and Sumatra. Thus far, the types of coal in Indonesia have met the criteria for use. The coal mining method has also adopted technology to minimize impact to the environment. For the nation’s energy security and independence, the national coal reserves can still meet the needs for the next 65 years.

“Coal may no longer be used in the next few decades. By 2060 we all will have to use New Renewable Energy (EBT), meaning we need to gradually reduce the use of coal as an energy source. But on the other hand, we need to do studies and research on the use of coal for other possible applications, I am sure my fellow researchers already have a lot of research savings related to this,” said BRIN Acting Deputy for Research and Innovation Facilitation, Agus Haryono, at the Book Review titled “Petrology of Sumatran and Kalimantan Coal: Type, Rank and Application”, Thursday (27/1).

With its widespread use, in-depth discussions about coal, especially related to petrology, are rarely held. Coal petrology is a part of geology that studies the organic and inorganic components of coal, its origin, geological history, and its properties related to composition. This coal petrology focuses on determining the type and rank of coal.

Binarko Santoso, Author of the book “Petrology of Sumatran and Kalimantan Coal: Type, Rating and Application”, said that by studying the coal petrology, we can apply it to mining operations, identification of coal seams, geological issues, indicators of sedimentation environment, coal liquefaction. underground coal gasification (UCG), and environmental impact analysis.

In his book, Binarko mentions that Sumatran and Kalimantan coals have almost the same characteristics. The indication can be seen from the similarity in formation age, climate and sedimentation environment. Coal in Indonesia consists of two types, Paleogene and Neogene.

“Neogene coal ranks lower than the Paleogene coal of Sumatra and Kalimantan. Coal seams affected by andesite intrusion show high grade, for example bituminous and anthracite,” Binarko explained.

Asep Bahtiar Purnama, a Researcher from the Research and Development Center for Mineral and Coal Technology of the Ministry of Energy and Mineral Resources explained that this book shows utilization and research of coal as well as opportunities for application of coal technology in the future.

“The condition, challenges and opportunities for research and development on coal downstreaming are still wide open even though in the future by 2060 we must be carbon neutral. The existing coal must be taken care of because it is still the backbone of energy in Indonesia. Utilization/downstreaming of coal later will also be subject to a fairly high carbon tax. So there are challenges for researchers, especially downstream, to be able to find solutions (zero carbon coal),” said Asep.

Furthermore, Asep said that this book is very simple, interesting and applicable for researchers or students who want to explore coal. Consisting of 7 chapters, this book covers an introduction to coal petrology, terminology related to coal, analytical methods carried out for testing coal characteristics, peatification and coalification processes, geological settings related to coal formation and coal petrology related to the characteristics of coal in Sumatra and Kalimantan regions and finally about the petrological application of coal. (aps)