Sabtu, 29 Maret 2014

Indonesia Can Develop Biomass Energy

Lack of non-renewable energy sources and an increasing need for renewable energy sources has forced Indonesia to shift gears and refocus its attention, it was revealed during the UN Framework Conference on Climate Change.

“Indonesia has tremendous potential to produce biomass, the market is there, we just need a policy to move forward,” Yetti Rusli, the special staffer for climate change at the Forestry Ministry told the Jakarta Globe during the side event of the conference.

“It’s no longer enough to have our full attention to anticipating climate change or emission reduction, it’s time for us to think about added values” she said.

Yetti said Indonesia could be one of the biggest biomass producers worldwide with its massive potential.

“We are very fortunate to have sunshine 11 hours a day, not to mention we are only second to Brazil when it comes to richness of biodiversity,” she said.

Unlike Brazil, Yetti said, Indonesia has the upper hand with most land being owned by the state.

“The private sector only has the licence to manage the land, they didn’t own it, unlike in Brazil where most land is owned by corporations.”

With the system, she said, it would be easier for the government to introduce a new policy, including prioritizing the production of new energy sources aside from emission reduction.

Unfortunately, feasibility studies about the potential of biomass production in Indonesia are still scarce.

However, she said, Indonesia could use studies that have been done by developed countries and make adjustments to suit domestic needs.

“Studies are conducted to obtain details and to determine the direction of the policy, to create a policy we can simply use best practices from developed countries.

“Even though we have different climate conditions, the need for a new source of energy is the same” Yetti said.

“Energy security in Indonesia is very fragile because we still have to subsidize it, even though the government has gradually reduced subsidies we still need to catch up with the oil prices, which have been very unstable. To answer this insecurity we need to come up with a renewable source of energy,” the Forestry Ministry staffer said. “Earlier there used to be a focus on developing nuclear energy as the new source of energy.”

She added that since the Fukushima incident, everybody started to look for something else, something more environmentally friendly, such as wind, solar, or biomass.

Producing biomass energy, Yetti said, would not be a totally foreign concept in Indonesia as a country which has been using firewood for centuries.

The experience could easily be translated into a more modern technique after thorough research, she said.

“It’s no longer enough to talk about stopping forest fires or encroachment, we need more.”

Moving forward

The Forestry Ministry has started a pilot project to see the feasibility of producing wood pellets, the material used to produce bio-methanol — believed to be carbon neutral — by planting red calliandra ( Calliandra Calothyrsus ) in Bangkalan, Madura.

Calliandra is a nitrogen-fixing tree that helps in fixing the soil condition, and is very easy to prune,” Yeti said.

“The trees are quite large and are a good source of nutrition for livestock,” she added.

The government has allocated 170 hectares of land for the Calliandra plantation in Madura, but the community managed to add more and now has 200 hectares of land to cultivate. The construction of a wood pellet factory is now underway in Bangkalan and it is estimated the factory will be able to produce 4,000 metric tons of wood pellets every year.

“It’s not much, but this is a start and people will learn how to cultivate calliandra and produce wood pellets,” she said.


  
Local success

State plantation firm, Inhutani has managed to secure a business deal with a South Korean consortium consisting of several large companies who have pledged their commitment to build a wood pellet factory in Indonesia, which will be able to produce up to 100,000 tons of wood pellets every year.

“After South Korea, our next target is Sweden, the biggest user of wood pellets in Europe, and then the Netherlands and Italy,” she said.

According to Yetti, biomass production is the most feasible option for Indonesia in the near future because other green products, such as carbon credits are still being negotiated and will take a very long time.

“At the same time the developed countries have been asked to reduce emissions so the need for environmentally friendly energy is very high, which is why the transition product like biomass is in high demand,” she said.

The scheme to reduce emissions, Yetti said, can be combined with agro-forestry,

“As we know the agriculture sector has been accused as one of the main contributors of the emission,” she said.

Trees can retain water and regulate the water cycle, preventing damage to crops and help in the recovery of the agricultural area,” she added.

Head of Indonesian Agricultural Environment Research Insitute at the Ministry of Agriculture (IAERI), Prihasto Setyanto said climate change has a direct impact on the Indonesian agriculture sector.

“People think climate change will impact their lives in the future — in the next few decades — but it’s not true, it’s happening now, it’s affecting our daily lives,” he said.

Prihasto said the agriculture sector has a lot of potential and can be used as a very powerful tool to help reducing carbon emissions.

One of the programs is the sustainable food reserve garden where people are encouraged and educated to make the best use of their own back- or front yards to cultivate some basic commodity.

“In 2010, because of climate change, it rained practically all year long, the farmers could not plant chillies. As a result, in 2011, the price of chillies soared to Rp 120,000 ($10.35) per kilogram. We even had to hold a special cabinet meeting because people were demonstrating across the country, it was that serious,” he said.

With the sustainable food reserve garden, Prihasto said, people would be able to fulfill their domestic needs by a simple farming method.

“And please don’t think the threat of climate change is not real, every 1 degree Celsius rise in temperature raise will cause a 10 percent drop of our rice harvest. If the prediction was correct that Indonesia will suffer from 4 to 5 degree Celsius temperature increase, our crop will drop by half, we can’t let that happen,” he said.

Source : http://www.thejakartaglobe.com/news/indonesia-can-develop-biomass-energy/

Global pellet market to reach $9 billion by 2020

The global market for pellets is expected to double in the next seven years, growing from a $4 billion market to $9 billion, Michele Rebiere with Viridis Energy Inc. told attendees at the Pellet Supply Chain Summit, March 24. The summit preceded the International Biomass Conference being held March 24-27 in Orlando, Fla.

Speaking in the closing panel of the day, Rebiere said the largest market, by far, is the European, with 20 million metrics tons (mmt) used in 2013 for both industrial power and residential heat. That is forecast to grow to 28 mmt by 2015 and 42 mmt by 2020. The North American market, is now at 4 mmt and forecast to be 5 mmt in 2015, but she added, are understated going out further. “I think the forecast in North American will increase substantially,” she said added, as the interest in cofiring with coal is likely to increase which the forecasts won’t include until projects are announced. The Asian market is expect to grow as well, from 1 mmt in 2013, to 3 mmt in 2015 and potentially 7 mmt by 2020. While the power market is the largest market contributor, the heating market is growing rapidly. Italy, in particular, garnered attention with the doubling of its demand in one year.

Seth Ginther, executive director of the U.S. Industrial Pellet Association, was a bit more conservative on his growth projections, pointing out that 2020 estimates range between 25 mmt and 70 mmt. “I think that 2013 was the year we’re beginning to see where the market is going to shake out. It’s going to be more like the 25 mmt level, but that still is going to be significant.”

In his discussion on the changes in the United Kingdom’s incentives, Ginther said it is important to note that the incentives for biomass conversions are aimed at helping  develop infrastructure. And, as the carrot is phased out, the stick – the price of carbon – is being increased, making it very expensive to burn coal. As a result, UK power producers are expected to continue to move towards biomass.

As a large UK buyer of North American pellets, Richard Peberdy, vice president of sustainability for Drax Biomass International, outlined his company’s commitment to biomass power and its interest in sustainability. The UK power producer has experimented with a number of biomass sources to supplement coal since 2008, making a commitment to pellets to provide a large portion of its biomass needs. It has two pellet facilities under construction in Mississippi and Louisiana and is building a port facility in Baton Rouge, La.
The first of three boiler conversions has been completed at Drax, with the second to be brought into service later this year and the third planned for 2015. Peberdy reported that Drax was pleased with the performance of its first biomass boiler conversion at the end of the first year of operations. “It’s outperformed our expectations in the first year at 39 to 40 percent efficiency on 100 percent biomass.” That is significant, he added, because UK sustainability reports projected biomass power would only reach 25 percent efficiencies, much lower than coal power’s average 35 percent efficiency.

Peberdy described Drax’s commitment to sustainability, pointing out that the company established its own sustainability goals even prior to the development of UK standards. The pressure for sustainability brings benefits, he said, by increasing investments in forests, in outreach to forest owners and in safer and better systems for making, handling and moving pellets.


Ben Conte, renewable energy sales manager for Bridgewell Renewables, filled out the panel at the summit on market energies by describing the work his company has done in marketing pellets in the EU. Much of the Bridgewell’s focus has been on meeting the high quality heating market, working to help its customers with their branding efforts. While Bridgewell is developing a brand to be able to meet spot markets, much of the work it’s done has been in seasonal 3-6 month contracts as well as long term contracts for one or two years. “The market is evolving,” he said. “The industrial and residential markets are linked in Europe and Asia,” he added, and are getting more sophisticated.

Other panels during the day included industry speakers addressing forestry ownership implications, sustainable forest management, pellet mill design considerations and infrastructure.

By Sue Retka Schill | March 24, 2014
Source : http://biomassmagazine.com/articles/10194/global-pellet-market-to-reach-9-billion-by-2020 

Kamis, 20 Maret 2014

Berpacu Menurunkan Suhu Bumi

Walaupun skenario carbon neutral tidak mengurangi konsentrasi gas rumah kaca di atmosfer, tetapi dengan skenario ini tidak menambah lagi gas rumah kaca di atmosfer. Penggunaan bahan bakar carbon neutral dari biomasa adalah langkah konkritnya. Secara bertahap peran bahan bakar biomasa ini ditingkatkan penggunaannya dan dikuatkan dengan dukungan oleh regulasi negara. Sejumlah negara telah berani mengambil policy yang ambisius untuk pemanfaatan biomasa dalam skala yang massif. Faktor keyakinan sebagai solusi bagi masalah lingkungan berupa perubahan iklim dan pemanasan global, menipisnya cadangan bahan bakar fossil, citra sebagai negara yang ramah lingkungan, dan ekonomi adalah beberapa pendorong negara-negara tersebut menerapkan policy tersebut.


Untuk Asia, Korea Selatan telah memulai menggunakan biomasa secara massif dengan resmi dikeluarkannya RenewablePortofolio Standard (RPS) di Korea pada 2012.  RPS itu menyatakan bahwa 2% listrik harus berasal dari energi terbarukan. Prosentase dari energi terbarukan yang dibutuhkan akan meningkat secara incremental mencapai 10% pada 2022. Pendorong lainnya adalah skema perdagangan emisi yang akan dikeluarkan pada Januari 2015. Sedangkan di Jepang strategi energinya menjadi terlantar sejak meledaknya reaktor nuklir beberapa waktu lalu. Strategi aktual termasuk pembuatan pembangkit listrik dengan komposisi dari nuklir dan energi terbarukan dari 30% ke 70% sampai 2030. Jepang dengan jumlah penduduk sekitar setengah penduduk Indonesia tetapi konsumsi energinya 5 kali Indonesia. Jepang juga mentargetkan pembuatan pembangkit listrik dari energi biomasa dengan kapasitas 1100 MW sampai 2020. Sedangkan untuk pemakaian energi terbarukan Jepang memiliki target untuk mengurangi emisi CO2 dengan level seperti tahun 1990 pada tahun 2030.   Sedangkan China memiliki goal untuk menggunakan 11,4% dari non-fossil fuels dari konsumsi energi primernya pada 2015. Emisi CO2-nya akan dikurangi sebanyak 17%. Target pengurangan emisi CO2 sebanyak 40-45% pada tahun 2020 untuk mencapai level seperti tahun 2005. Di Eropa dengan target 20-20-20 telah mendorong permintaan bahan bakar biomasa terutama pellet. Target 20-20-20 adalah pengurangan gas rumah kaca 20%, penggunaan energi terbarukan 20% dan efisiensi energi 20%. Alat efektif di Eropa untuk mencapai target tersebut adalah skema perdagangan emisi (emission trading scheme / EU ETS).

Indonesia juga telah mencanangkan untuk mengurangi energi fossil, yakni pada tahun 2025 dengan porsi bahan bakar fossil 83% & renewable energy sekitar 17% secara khusus biomasa mendapat porsi kurang dari 5%. Potensi energi biomasa di Indonesia sangat besar yakni setara 49.810 MW listrik tetapi yang termanfaatkan masih kurang dari 4% atau kurang lebih setara 1.680,4 MW. Lahan kritis dan lahan tidur yang luasnya mencapai jutaan hektar, juga potensi luar biasa untuk dijadikan kebun energi sebagai sumber energi biomasa tersebut. Optimalisasi potensi tersebut akan mendukung tercapainya target yang dicanangkan pemakaian energi biomasa sebagai energi terbarukan dalam bauran energi total. Akhirnya terciptanya ekonomi yang rendah karbon bisa sebagai solusi bagi kesejahteraan masyarakat dan meningkatkan kualitas lingkungan, dengan komoditas yang paling populer yakni wood pellet. Global pasar pellet ini diprediksi akan meningkat dari 16 juta tons (2010) menjadi 46 juta ton pada 2020.  

Kamis, 13 Maret 2014

Rute Tercepat Untuk Produksi Wood Pellet

Ukuran partikel bahan baku biomasa berkayu dan kadar air tertentu asalkan memenuhi syarat teknisnya serta jumlahnya memadai bisa langsung diproses dalam pelletiser untuk menjadi wood pellet. Tahapan misalnya seperti debarking,  size reduction, dan drying menjadi tidak perlu dilakukan dengan kondisi bahan baku tersebut. Semakin pendek rute proses yang dilalui maka akan semakin ekonomis proses produksi yang dilakukan. Inilah pilihan ideal yang dicari oleh semua produsen wood pellet. Kondisi ideal ini tidak banyak ditemui tetapi ada pada beberapa industri.


Limbah planer siap untuk dipellet

Limbah kayu serutan (planer) karena ukuran partikelnya sudah kecil dan kering (MC<10%) umumnya bisa langsung diproses dalam pelletiser untuk produksi wood pellet. Hanya sebuah alat tambahan berupa hopper sebagai penampung sementara biasanya dibutuhkan sebelum pelletiser untuk menjaga kestabilan pasokan bahan baku ke pelletiser secara kontinyu. Ketersediaan dan keberlanjutan bahan baku tersebut selanjutnya akan menjadi salah satu faktor kunci kesuksesan produksi wood pellet tersebut. Bahan baku kering tetapi kalau ukuran bahan bakunya masih cukup besar seperti wood chip tidak bisa langsung diumpankan ke pelletiser untuk jadi wood pellet.

Rabu, 12 Maret 2014

Pellet Fuel dari Tongkol dan Batang Jagung


 
Tongkol dan batang jagung adalah limbah dari usaha budidaya jagung. Umumnya kedua limbah tersebut hanya dibuang dan tidak dimanfaatkan. Mahalnya harga energi, solusi masalah limbah dan peningkatan nilai tambah pemanfaatan limbah tersebut adalah pendorong pemanfaatan limbah ini. Data tahun 2006 dengan produksi jagung secara nasional 11,7 juta ton, limbah pertanian dihasilkan yakni 12,1 juta ton. Dengan potensi energi batang dan daun kering diperkirakan 66,35 GJ dan tongkol jagung sebesar 55,75 GJ tentu sangat potensial untuk sumber energi.  Batang dan daun kering jagung memiliki nilai kalori 4370 kkal/kg sedangkan tongkol jagung pada 4451 kkal/kg (MC=7,53%).


Pellet tongkol jagung dan pellet batang jagung
Pemelletan untuk menjadi pellet bahan bakar (pellet fuel) adalah pilihan terbaik untuk sumber energi tersebut. Pellet dari limbah pertanian jagung ini bisa dimanfaatkan untuk bahan bakar kompor pada daerah pertanian tersebut atau untuk industri atau pemabngkit listrik dan potensial untuk dieksport ke luar negeri. Ditinjau dari asalnya karena pellet fuel dari limbah pertanian jagung ini termasuk biomass pellet atau agri-pellet, yang spesifikasinya sedikit berbeda dengan pellet kayu (wood pellet). Teknologi produksi pellet dari limbah jagung ini juga hampir sama dengan produksi wood pellet.



Sejumlah sentra-sentra produksi jagung di seluruh Indonesia potensial untuk mengembangkan komoditas ini karena ketersediaan bahan baku, mengatasi masalah limbah pertanian, kebutuhan energi yang terus meningkat dan faktor ekonomi. Sebagai bahan bakar yang ramah lingkungan, mudah disimpan dan digunakan, sebagai bahan bakar carbon neutral akan mengurangi dampak perubahan iklim akibat gas rumah kaca serta mendorong ekonomi rendah karbon.

Jumat, 07 Maret 2014

Produksi Energi dari Pellet Fuel

Pellet fuel atau pellet bahan bakar adalah bentuk modern biomasa yang dipadatkan sebagai salah satu sumber energi terbarukan yang potensial dikembangkan di Indonesia, yang terdiri dari wood pellet dan biomass pellet. Wood pellet berasal dari kayu dan biomass pellet berasal dari biomasa lainnya seperti limbah-limbah pertanian dan perkebunan semisal tandan kosong kelapa sawit. Pellet fuel yang diproduksi bisa memiliki variasi kualitas yang besar karena faktor bahan baku dan teknologi produksinya. Teknologi pemnfaatan pellet fuel secara thermal untuk produksi energi yakni pembakaran dan gasifikasi telah banyak diaplikasikan

Produksi energi dari pellet fuel ini berupa panas dan listrik. Pembakaran pellet fuel secara normal adalah mudah dan kebutuhan untuk inspeksi serta menjaga nyala api dari burner atau boiler umumnya kecil karena pengumpanan pellet yang umumnya dilakukan secara otomatis. Tetapi problem pembakaran dapat muncul misalnya jumlah abu bertambah banyak yang menyebabkan sistem pembakaran terjadi slag dan efisiensinya menurun. Problem tersebut sering disebabkan oleh rendahnya kualitas pellet atau pilihan teknologi pembakaran yang salah atau setting sistemnya yang tidak pas.
Nilai kalor, kadar abu, kimia abu, kadar air, dimensi pellet dan kepadatan adalah beberapa parameter penting dari pellet fuel. Pilihan pellet fuel akan menentukan teknologi pembakarannya. Saat ini telah tersedia alat untuk membakar pellet fuel dari skala rumah tangga yakni kompor pellet (pellet stove), skala medium hingga untuk produksi panas dan listrik skala besar hingga mencapai puluhan megawatt (MW). Alat-alat atau sistem tersebut umumnya dilengkapi katup-katup pengaturan udara baik primer atau sekunder bahkan tersier untuk optimalisasi proses pembakaran yang dilakukan. Setting operasi yang benar membuat sistem bisa bekerja optimal sesuai spesifikasinya.  

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