Wednesday, 10 December 2014

INDONESIAN COAL SUPPLY

Energy demand has been growing at a remarkable rate into the 21st century, where most of the demand is being fulfilled by conventional fossil fuels. With high oil prices, Coal is the most important energy source for electricity generation and also forms an essential fuel for the production of steel and cement. Indonesia with 40 billion metric tons of coal reserves is still among the largest coal supplier in the world. Indonesia is among the top ten producers of coal having 237.4mt coal.
According to information presented by the Indonesian Ministry of Energy, Indonesian coal reserves are estimated to last around 83 years if the current rate of production is to be continued.  Indonesia comprises of 17500 island is the world’s 16th largest country. There are numerous smaller pockets of coal reserves on the islands of Sumatra, Java, and Kalimantan, Sulawesi and Papua but the three largest regions of Indonesian coal resources are:
South Sumatra South Kalimantan East Kalimantan.

Although Indonesia has long history of coal mining, the first commercial operation commenced in 1849 when NV Oost  Barneo Maatschappij began mining in Pangaron, East Kalimantan. The discovery of oil in East Java in 1884 reduced interest in coal mining. By start of World War 2 Indonesia was largest supplier of oil in far East, producing 180,000 barrels a day and by 1960 this had risen to 400,000 barrels a day. The coal mining remained at small scale at that time about 2 million tons in 1941 and mainly supplied to shipping industry. As ships moved to oil fired engines, the industry declined to almost nothing producing 200,000 tons of coal by 1972. By 1973 oil impediment resulting from Yom Kippur war tripled oil prices and reignited interest in coal as fuel. The relaxing foreign investment and interest in an alternative led to slow and steady growth in Indonesian coal mining industry, initially though Rio Tinti Zinc and secondary of the Shell Company.
In 1980 and by 1983 five companies had obtained rights to 20 million tons of coal deposits. By 1990 industry was enjoying 30% growth a year and by 1995 Indonesia was supplying 30 millions coal a year. By the end of decade it had risen to 55 million. Indonesia became the world’s largest supplier of steaming coal in 2005 with 117 million tones. By 2009 this had risen to 176 million tones leading to 330 million tons in 2012.This was the real boom in Indonesian coal industry. Only 24% of coal is used in Indonesia internally and the rest is exported.
The value of coal to Indonesia was Rp 5.8 trillion in 2007 that increased by Rp 20.8 trillion in 2012. Although coal extraction increased only 52% in five years but revenue went up by 358%.
The most important buyer of Indonesian steam coal in the Pacific area is Japan with approximately 35 million tons. Other buyers are in particular Taiwan, South Korea and India. China with approximately 20 million tons per year is also an important buyer. For technical and viable reasons Indonesia has become a major supplier of coal to nations with larger coal deposits like china and India. The main export destination countries for Indonesian coal are China, India, Japan and Korea. Coal has a clear importance for Indonesia's state revenue as the product accounts for around 85 percent of mining revenue.
Indonesia allowed its miners to sell at prices well below the standards. This was possible because it costs Indonesian large miners between $30 to$55 to extract ton of coal and transport it to port. This makes it the cheapest steaming coal in the world and it’s the basic reason that Indonesia is largest coal supplier in the world. It is about price so in short Indonesia at this time has a strong competitive advantage through low cost open cut coak mining operations close to low cost transport facilities.

The merchandise boom of the 2000s generated significant profits for companies engaged in the export of coal. The rise in commodity prices was - to a large extent - triggered by accelerated economic growth in emerging and developing economies. But this profitable situation changed with the outbreak of the global financial crisis in 2008 when commodity prices went down fast. Indonesia was affected by these external factors as export of commodities particularly coal accounts for around 50 percent of total Indonesian exports, thus limiting the country's GDP growth in 2009 to 4.6 percent. From the latter half of 2009 until the beginning of 2011 a sharp rebounce in global coal prices occurred. However, reduced global economic activity has lessened demand for coal, thus resulting in a downward trend of coal prices starting from early 2011.
This means that - generally - profits in the coal industry will be limited in the near future. However, if we take it into longer term - when global economic activity is back on track - demand from China and India is forecast to make the coal business very profitable again.. These promising future perspectives are the main reason that in recent years many Indonesian companies have started planning to expanding into the nation's coal mining industry, considering the rising energy prices and growing shortage of energy sources, it will become more expensive to buy coal on the market in the future. For many Indonesian companies this is an incentive to start securing coal reserves now. A number of large companies such as Astra International, Semen Gresik (cement industry) and Perusahaan Listrik Negara (electricity) - last two of which are highly dependent on the supply of coal - are investing in coal mining in order to establish an entire value chain in mining and energy businesses while also securing future supplies, and thus guarding it against fluctuations in global coal prices. Currently, owning a coal mine has become a trend for the richer families and companies in Indonesia.
Despite global awareness to reduce dependency on fossil fuels, developments in renewable energy resources do not show an indication that dependency on fossil fuels (especially coal) will be reduced significantly in the expected future, thus coal remains a vital energy resource and Indonesia is expected being a major player in the coal mining sector.

Friday, 14 November 2014

Komoro Coal Indonesia: Activated Charcoal

Activated charcoal is carbon that has been treated with oxygen. The treatment results in a highly porous charcoal. These tiny holes give the charcoal a facade area of 300-2,000 m2/g, allowing liquids or gases to pass through the charcoal and act together with the exposed carbon. The carbon adsorbs a wide range of impurities and contaminants, including chlorine, odors, and pigments. Because adsorption works by chemically binding the impurities to the carbon, the active sites in the charcoal ultimately become filled. Activated charcoal
filters become less helpful with use and have to be recharged or replaced.


Over 3000 year’s activated charcoal is used for health and remedial purposes. Activated carbon is a form of charcoal that is extremely porous and able to attract and strongly bind many harmful substances in various aqueous based environments. Common charcoal is made from peat, coal, wood, coconut shell, or petroleum.  Activated carbon is made from wood, vegetables, and other materials and is known for its ability to filter toxins out of the water and human body. Activated charcoal has been shown to be helpful at binding to chlorine, viruses, bacteria, and their metabolic byproducts and toxic excretions. It is expected that daily use of activated charcoal lesser the amount of toxic freight in the human body almost 60%.

Factors That Affect Efficiency of Activated Charcoal:

Several factors control the efficiency of activated charcoal. The pore size and allocation varies depending on carbon and the mechanized process Contaminants are also removed more proficiently if they are in contact with the activated charcoal for a longer time and that’s why  flow rate through the charcoal affects filtration.

Manufacturing of Activated Charcoal:

Charcoal is mostly made from burning of coconut shell in very high heat without the occurrence of oxygen. This `activated` process wood creates millions of little pores within the charcoal material. These pores take in and hold large amounts of liquid and toxic remains.

Absorbent Qualities:

Activated charcoal has been shown to catch and hold more than 100 times its own weight in outside materials.  Activated charcoal is said to adsorb foreign materials rather than absorb them. Sponges absorb liquids but do not bind them, and therefore they can be squeezed right out. On the flip side, substances like charcoal that adsorb actually bind the toxins so they cannot escape. When toxins and other impurities interact with charcoal, they are bound tightly at a molecular level and cannot escape.


In 2008, a Chinese chemical company had an accidental explosion that released massive quantities of toxic benzene into the Songhua River, which provides the drinking water for over 10 million people in the city of Harbin. The Chinese government used activated charcoal to filter out the benzene from the river. The experiment was a success and saved the village from a near lethal exposure to toxic benzene.

Activated charcoal is very mild on the colon and does not impede with the natural mucus lining of the intestines. It is superb for cleansing the intestines. It is great at binding to toxic gases, Candida, parasites and other physical impurities and at depiction them harmless. Bloating, flatulence and constipation are relieved. Charcoal supplementation is best when vault with fibers such as psyllium powder or celery seed powder and good levels of hydration.