Biochar for Energy Plantations

The low productivity of wood from energy plantations is one of the obstacles to the development of energy plantations. Although energy plantation plants such as calliandra can grow on marginal or critical lands, the quality of the soil affects the productivity of the wood produced. This makes it important to improve the quality of the soil of these energy plantations so that they can produce optimal plant productivity. Biochar can be an effective solution for this. Biomass waste that pollutes the environment can be used for biochar production or wood products from these energy plantations can be partly used for biochar production.

Biochar and energy plantations are two positive things for climate solutions. Energy plantations for the production of carbon neutral biomass fuels such as wood pellets, while biochar is to improve soil quality, save fertilizer use and so on and as carbon sequestration / carbon sinks that are carbon negative. The biochar solution for energy plantations will maximize CO2 reduction and sustainability efforts. The vastness of energy plantations is because they are pursuing the target of producing biomass fuel quantities which are comparable to land use and also comparable to the use of biochar. This is so that industrial-scale biochar production is needed to support this, read more details here. The more damaged the land or critical lands are, the greater the need for biochar. And the production of large-capacity biochar has the opportunity to get carbon credit or BCR (Biochar Carbon Removal) credit which can be a driving force for the growth of biochar industries. 

Critical and marginal lands should be prioritized as energy plantation lands. This will not only restore land quality but will also provide added value to land use and efforts to prevent disasters. Land legality is also an important concern. Land must be clear and clean, meaning free from disputes so that it does not cause problems in the future. Furthermore, industrial forest plantation land (HTI) which is indeed in accordance with its designation as a production forest can also be used for energy plantation land. How damaged or degraded the land is will determine how much biochar is used. Meanwhile, the creation of energy plantations from land conversion from protected forests / conservation forests to production forests should be prohibited, because instead of saving the environment, it will actually have a greater negative impact on the environment. So opening forest land (deforestation) for energy plantations is not recommended at all.

Optimizing Pyrolysis and Biochar in the Palm Oil Industry

Indonesia's CPO production currently reaches around 50 million tons per year with a land area of ​​around 17.3 million hectares. This means that the average CPO production per hectare is only 2.9 tons or per million hectares produces 2.9 million tons. If biochar is used and there is a 20% increase, it means there is an increase of 10 million tons of CPO per year and this is equivalent to saving around 3.5 million hectares of land, or the use of biochar will slow down forest clearing (deforestation) for palm oil plantations.

The average speed of Indonesian palm oil plantation area is 6.5% per year or equivalent to about 1 million hectares per year for the last 5 years, while the increase in palm oil fruit production or FFB (fresh fruit bunches) is only 11% on average. Even the largest expansion of palm oil land occurred in 2017, which increased by 2.8 million hectares. By opening 1 million hectares of forest, national CPO production only increased by 11%, while without the need to open forests, namely with the application of biochar, there could be a 20% increase in productivity. And the 20% increase in FFB yield (fresh fruit bunches) using biochar is a low estimate.

With the number of palm oil mills in Indonesia reaching more than 1000 units and tens of millions of tons of biomass waste, especially empty palm fruit bunches (EFB), the volume of biochar production produced is certainly very large. In addition, pyrolysis technology can replace combustion technology which is generally used in palm oil mills to produce steam for electricity production and sterilization of fresh fruit bunches (FFB) in CPO production. With pyrolysis raw materials using palm oil tankos and being able to replace palm kernel shells, 100% of palm kernel shells (PKS) can be sold or exported. The sale of palm kernel shells or PKS (palm kernel shells) will certainly provide additional attractive benefits for the palm oil company. Palm kernel shells or PKS are the main competitors of wood pellets in the global biomass market.

In addition, the use of biochar also saves fertilizer use and the highest operational cost on oil palm plantations is fertilizer so this is very relevant. Tens of billions of costs spent on fertilizer can be reduced by using biochar, especially since the biochar comes from its own waste so that it will automatically become a solution for biomass waste management. Including biopesticides and liquid organic fertilizers can also be produced from the pyrolysis process. Carbon credit is the next business potential. This is because the application of biochar to the soil for agriculture or plantations is an effort for carbon sequestration / carbon sink.

The benefits that can be obtained from this biochar carbon credit are also large, even globally biochar carbon credit ranks first or more than 90% in Carbon Dioxide Removal (CDR) recorded in cdr.fyi. However, there are indeed many large biochar producers who do not sell their carbon credits because of the methodological requirements of standard carbon companies such as Puro Earth and Verra, and these biochar producers are comfortable with their biochar sales business, especially since these producers have existed (established) since before carbon credits were available for biochar.    

Reviving the Integrated Coconut Industry Part 3

When continuous pyrolysis is used for processing coconut shells and producing charcoal and is not processed further into activated carbon, excess syngas and biooil can be used as energy sources for processing fruit flesh and coconut water. Fruit flesh and coconut water can be processed into a variety of products needed by the market. The production costs of various processed coconut products have become very competitive because energy costs are very minimal or even zero. In addition, energy needs can also be added from coconut fiber which is used as fuel as well. The energy source can be used for electricity or heat or both depending on industry needs.

If gliricidae is planted as a crop between coconut plantations, wood products will also be obtained. The wood can be used as raw material for wood pellets as an export commodity which is predicted to continue to increase demand in line with awareness of environmental problems and climate change. Gliricidae leaf waste can also be used as animal feed such as goats, sheep and cattle. Maintenance of gliricidae is very easy and planting patterns as intercropping with coconut plantations are also common in Sri Lanka. Land optimization can also be done by using land between coconut plantation and gliricidae as pasture fields such as goats, sheep and cattle and for beekeeping.

To make the business profitable and sustainable, professional management certainly needs to be applied in the business. Management of the upstream sector namely plantations and livestock should be separated from the downstream sector namely factory or plant as a processing unit. This is similar to the organization in the palm oil company which separates the plantation division from the factory or mill division. In addition to facilitating business operations, the business will become efficient and competitive.

Food Energy Water for the World Community

"There will be no doomsday, until wealth has been piled up and abundant, until a man goes everywhere carrying his zakat but he does not get anyone who is willing to accept his zakat. And so that the Arab lands become fertile again prosperous with meadows and rivers "(HR.Muslim).
The earth will once again prosper before doomsday. In general gardens and forests like that also cause springs to appear (QS 36: 34) which in time will flow into the rivers (QS 19: 24-25) and also be your pleasure and your animals ( QS 79: 31). Basically, the earth is very sufficient to meet human needs, especially in 3 main things namely food, energy and water. In the era of bioeconomy that is believed to be in sight and we will soon experience it, a number of technologies will be developed to support these three main sectors in a sustainable manner. The emphasis on something that is sustainable  is increasingly emphasized to increasingly abandon or not at all use fossil sources (fossil free), especially in the energy sector. It is this aspect of sustainability that clearly distinguishes the fossil economy era from bioeconomy.

The Concept of Energy Plantation and Verticulture 

The tropics will be excellent for developing bioeconomy because of the availability of sunshine throughout the year. This tropical region will compete for entrepreneurs engaged in this sector, such as the African continent and Indonesia. The availability of vast land in the area is a key factor in the development of energy plantations. Energy is a vital need for human kind today, especially to drive economic sectors. With energy plantations, massive energy needs can be met. Fast rotation and coppice plants such as calliandra and gliricidae are the mainstay of energy plantations. In addition to the energy plantation will be able to conserve water, livestock business can also be developed by utilizing leaves waste from the energy plantations. Sheep, goat or cattle farms are ideal for utilizing leaves waste from the energy plantations. Honey bee keeping can also be developed by utilizing flowers from the energy plantation.

verticulture with skyscrapers

Calliandra Energy Plantation

Tall buildings were built not even for human habitation, but as agricultural land for food crops (verticulture). Verticulture farming is to meet food needs and facilitate its management. Modern farming techniques are used to maximize the quality and productivity of the farm. To support the success of agriculture, IOT (internet of things) with a number of sensors that can be read online is an integral part of agricultural management. The effectiveness and efficiency of farming can be increased rapidly so that high productivity and quality can be achieved, while large lands mainly for energy plantations. Biochar which can be used to improve the effectiveness and efficiency of fertilization can be applied to verticulture farming.  Apart from being made compost agricultural wastes can also be partially converted into biochar. For large capacity biochar production, the continuous pyrolysis units are the best choice. Compost and biochar production also makes the farming practices zero waste. Even with continuous pyrolysis technology, in addition to biochar, heat and electricity can also be produced. Liquid fuel namely biooil, is also produced from the continuous pyrolysis technology.

With the majority of land used for energy plantations, the energy needs, InshaAllah, can be fulfilled even the meat needs of the livestock business, as well as food production with verticulture. The ideal concept, if it can be implemented, should be a solution to the problems of life today. The concept can be implemented if humanity realizes the importance of the program and supports it. Technically, this can be done, and some have done it even on a smaller scale and it has not been fully integrated.

The coming era of bioeconomy should also be in line with the improvement of the economic system that gives a sense of justice to the world's population. With the current economic model it takes 800 years for the bottom billion people to reach 10% of global income. As a result of the current liberalism and capitalism, the richest 10% control 85% of global wealth. The three richest people in the world have assets of more than 47 GDP, the lowest gross GDP. 1% of the richest people own more than 50% of the world's wealth. This huge inequality should be overcome immediately with a equitable and prosperous economy. The transition from fossil economy to bioeconomy can be both an medium and a momentum for improving the economic system. The tropics, which were previously of a minor economic role, should have been increased and taken into account or even become a major player in the bioeconomy era.

Biochar, Urban Farming and Drip Irrigation

Urban Farming in Chicago, US

Efforts for food self-sufficiency must be done in various ways including overcoming the limitations of agricultural land that occur due to use for settlement / housing. In line with this FAO also launched a zero hunger or free hunger for the world population in 2030. The package was formulated in Sustainable Development Goals (SDGs) consisting of 17 targets including the zero hunger. The narrowness of urban land is not an obstacle to participate in the fulfillment of these food needs. Agriculture in cities has also begun to flare up today, both in developed economic countries such as the United States and Europe as well as in a number of major cities in Indonesia. Urban farming attracts a lot of urban residents because in addition to adequate food, as well as relaxation and tourism. Currently approximately 50% of urban residents who work to get food sufficient so it will also be greatly helped by doing urban agricultural activity. High levels of congestion, air pollution, and various other common social factors in urban areas become stressful and make urban farming activities a place to relieve stress or relaxation. Especially in the next few years the population of Indonesia in particular, predicted the percentage of people who live in the city far more than those living in the village.

Efficiency becomes the keyword for agriculture on such limited land, both media efficiency, water efficiency, maintenance efficiency, fertilizer efficiency and so on which is now termed into precision farming. The world needs food additions of up to 70% to 2050 while the land continues to decrease, as does the quality of the water and the air. So precision farming and IoT (Internet of Things) can be a great solution for that. For example the idea of ​​precision agriculture and IoT on palm oil plantations can be read here. Various efforts are used to achieve the best level of precision one of them with the use of internet or IoT. Biochar or charcoal from biomass can be used for efficiency of planting medium, fertilizer and water. The biochar pores will retain water and fertilizer and become the site of the decomposing bacteria so that it is more available to the plant and ultimately increases the yield productivity. The next water efficiency is by drip irrigation. The water requirement on the plant is basically needed continuously although the amount is small. Drip irrigation is able to do so in the roots of the plant. The mechanism is similar to fertilization, ie slow release fertilizer and with biochar the release mechanism can be achieved, so as with the use of drip irrigation in irrigation, effective and high efficiency can be achieved as well. Mulch can also help improve the efficiency of water use by reducing evaporation and cooling the soil surface temperature.

Then how rural people if urban already able to meet the needs of food, especially vegetables? Keep in mind that vegetables that are in urban areas today come from a place far away even hundreds of kilometers away. Of course in addition to expensive transportation costs are also vegetables are not really fresh, because from harvesting, transportation, until the market up to the buyer usually takes more than 2 days. When the vegetables can be produced in urban areas that are very close to the buyer then the expensive costs can be avoided and vegetables are also fresh because it has just been picked. The rural community will be the producer of seeds from the vegetables. Seeds of vegetables in the form of grains will be easy and cheap transportation. Seeds for the seedlings are expensive to provide an attractive income for the producers of these

The vast lands in the countryside can also be planted with various kinds of fruit trees and various farms such as sheep grazing. Fruits will be a source of vitamins, sheep and livestock as a source of protein, and vegetables as a source of fiber and minerals, so that everything is complementary. Besides the vast lands in the countryside even in hilly or mountainous areas can also be used for energy plantations. Biomass fuel, especially wood pellet can be for substitution of various fossil fuels, especially petroleum and coal. Plants such as calliandra and gliricidae are great for the energy plantations, and even be integrated with sheep farms like the 5F project scenario for the world! The current condition of Indonesia that has become a petroleum importer should also encourage the use of energy from biomass especially wood pellets by promoting energy plantations. Energy development using energy plantations or trees are also in accordance with the Qur'an, for more details can be read here. Then man is commanded to prosper the earth (QS 11:61), to be told how to live the dead earth (QS 36:33), to be told how to fertilize it (QS 22: 5), how to maximize its crop yield (QS 16:10 -11), and even modeled on the success of good earth management (QS 34:15).

Do energy plantations need to be added with biochar? The answer is not necessary because the energy plantations uses leguminoceae (QS 36: 33) which can even turn the dead soil with its root ability by binding nitrogen from the atmosphere. Over time the land will become fertile, and can be used for various other farms. Biochar is suitable for increasing the productivity of various agricultural crops, especially outside the leguminoceae crop. More specifically for a variety of urban and palm oil agriculture, high soil fertility is needed.

Which one is better, pelletization of torrefied biomass or torrefaction of pelletized wood?

Torrefaction, a process different from carbonization, is a mild pyrolysis process carried out in a temperature range of 230 to 300 °C in the absence of oxygen.  This thermal pretreatment of biomass improves its energy density, reduces its  oxygen-to-carbon (O/C) ratio, and reduces its hygroscopic nature. During this process the biomass dries and partially devolatilizes, decreasing its mass while largely preserving its energy content. The torrefaction process removes H2O and CO2 from the biomass. As a result, both the O/C and the H/C ratios of the biomass decrease. But Torrefaction will increases the relative carbon content of the biomass. The properties of a torrefied wood depends on torrefaction temperature, time, and on the type of wood feed. Torrefaction also modifies the structure of the biomass, making it more friable or brittle. This is caused by the depolymerization of hemicellulose. This makes it easier to co-fire biomass in a pulverized-coal fired boiler or gasify it in an entrained-flow reactor. There is a 29 to 33% increase in energy density (energy per unit mass) of the biomass through torrefaction. This increases its higher heating value (HHV) to about 20 MJ/kg.  To know more advantages of the torrefaction, please click here.

In biomass, hemicellulose is like the cement in reinforced concrete, and cellulose is like the steel rods. The strands of microfibrils (cellulose) are supported by the hemicellulose. Decomposition of hemicellulose during torrefaction is like the melting away of the cement from the reinforced concrete. Thus, the size reduction of biomass consumes less energy after torrefaction.

During torrefaction the weight loss of biomass comes primarily from the decomposition of its hemicellulose constituents. Hemicellulose decomposes mostly within the temperature range 150 to 280 °C, which is the temperature window of torrefaction. As we can see from  Figure below, the hemicellulose component undergoes the greatest amount of degradation within the 200 to 300 °C temperature window. Lignin, the binder component of biomass, starts softening above its glass-softening temperature (~130 °C), which helps densification (pelletization) of torrefied biomass. Unlike hemicellulose, cellulose shows limited devolatilzation and carbonization and that too does not start below 250 °C.

Weight loss in wood cellulose, hemicellulose, and lignin during torrefaction

Thus, hemicellulose decomposition is the primary mechanism of torrefaction. At lower temperatures (< 160 °C), as biomass dries it releases H2O and CO2. Water and carbon dioxide, which make no contribution to the energy in the product gas, constitute a dominant portion of the weight loss during  torrefaction. Above 180 °C, the reaction becomes exothermic, releasing gas  with small heating values. The initial stage (< 250 °C) involves hemicellulose depolymerization, leading to an altered and rearranged polysugar structures (Bergman et al., 2005a). At higher temperatures (250–300 °C) these form chars, CO, CO2, and H2O. The hygroscopic property of biomass is partly lost in torrefaction because of the destruction of OH groups through dehydration, which prevents the formation of hydrogen bonds.

A typical reaction time is about 30 minutes. The properties of torrefied wood depend on (1) the type of wood, (2) the reaction temperature, and (3) the reaction time. Pelletization may not increase the energy density on a mass basis, but it can increase the energy content of the fuel on a volume basis. Pelletization of torrefied biomass is better than torrefaction  of pelletized wood from the standpoint of process energy consumption and  product stability.This is because :

a. Torrefied biomass (torrefied wood), for example using sawdust as feedstock, so the torrefaction process will consume less energy due to the smaller particle size than the pelletized wood (wood pellets).  Surface material can be in contact with the process of torrefaction is also larger in general when the particle size is smaller, so that better product quality (product stability). Normally before entering the torrefaction process feedstock will be diminished to the size of a certain size and drying up to a certain moisture content.
b. Physical form of pelletized wood (wood pellets) will be damaged due to torrefaction so irregular and will tend to shrink. While torrefied biomass has no problem with it because the physical form of the final product after pelletization.

Biobased Economy through Biomass Torrefaction

Lately a number of places in Indonesia has begun the production of wood pellets and wood chips as a renewable fuel. Biomass waste treatment has reduced the waste pollution and provide economic benefits. Since its application to energy the higher the energy content, the better it will be in addition to other properties. Through torrefaction of biomass will experience a thermal process that makes the content of volatiles is reduced, leaving the higher energy content / energy density (or energy content / unit mass is usually presented in kcal / kg) in the biomass solids.

Torrefaction of biomass which is then followed by compaction of pellets or briquettes will make the energy content per volume (one of which is expressed in units GJ/M3) the greater. And it will save on transportation costs. Torrefaction becomes an important concern lately because of the benefits torrefaction properties of these products, compared to wood pellets or wood chips. Appropriate technology that can be relied greatly needed for the commercialization process. JF BioCarbon have an effective technology for torrefaction, the more details please click here.

Many people noticed that the biomass torrefaction will soon find its golden ages at some future time. Indonesia and Malaysia in particular as a country rich in the amount of biomass it will be great potential for applying this technology. The palm oil industry is one of the potential with huge potential for implementation. A large number of oil mills and the high solid waste generated indicating the potential magnitude of the abundant raw materials. In terms of market is a matter that can not be denied that the energy needs will continue to increase directly proportional to the increase in human population. Biomass torrefaction is one way the most efficient utilization of biomass for energy. For further details, please click here.