Biomass Thermal Oil Heater Using Palm Kernel Shell Fiber (PKS Fiber)

Comparison of Coal vs. Palm Kernel Shell Fiber (PKS Fiber) for Thermal Oil Heaters

Thermal oil heaters are widely used in industrial applications that require stable temperatures up to 350°C without the high operating pressure associated with steam boilers. Fuel selection plays a critical role in determining operating costs, thermal efficiency, emissions, maintenance requirements, and long-term equipment reliability.

Among solid biomass fuels, Palm Kernel Shell Fiber (PKS Fiber) has become one of the most attractive renewable alternatives to coal. Derived from the palm oil industry, PKS Fiber provides a sustainable heat source with lower carbon emissions while utilizing agricultural waste that would otherwise have limited economic value.

This article compares coal and palm kernel shell fiber as fuels for industrial thermal oil heaters to help manufacturers choose the most suitable energy source.

Coal as Thermal Oil Heater Fuel

Coal has traditionally been the preferred fuel for large industrial heating systems because of its high calorific value and relatively stable combustion characteristics.

Advantages

• High heating value
• Stable combustion
• Suitable for continuous industrial operation
• Available in many industrial regions
• Lower fuel consumption per unit of heat

Limitations

• High CO₂ emissions
• Significant SOx and NOx emissions
• Large quantity of ash
• Higher maintenance costs
• Increasing environmental regulations

Coal-fired thermal oil heaters generally require:

• Larger dust collection systems
• Cyclone separators
• Bag filters
• Efficient ash handling systems
• Larger chimney installations

Palm Kernel Shell Fiber as Thermal Oil Heater Fuel

Palm Kernel Shell Fiber (PKS Fiber) is a renewable biomass fuel obtained during palm oil processing. It consists primarily of palm fiber mixed with small shell particles and has become increasingly popular throughout Southeast Asia.

Unlike coal, PKS Fiber is considered a renewable biomass resource because it originates from agricultural residues.

Advantages

• Renewable energy source
• Lower greenhouse gas emissions
• Reduced sulfur emissions
• Lower carbon footprint
• Supports sustainable manufacturing
• Often lower operating cost in palm-producing regions

Limitations

• Lower calorific value than coal
• Higher moisture content
• Larger fuel storage area required
• Fuel quality may vary depending on supplier
• Requires proper combustion air control

Fuel Property Comparison

Combustion Performance

Coal generally produces a more concentrated flame with higher combustion temperatures.

PKS Fiber burns with:

• Softer flame
• Lower sulfur emissions
• Cleaner combustion
• Less clinker formation
• Reduced corrosion risk

Modern biomass thermal oil heaters utilize:

• Moving grate furnaces
• Reciprocating grates
• Automatic fuel feeding systems
• Primary and secondary combustion air
• Variable-speed induced draft fans

These technologies significantly improve combustion efficiency while maintaining stable thermal oil temperatures.

Environmental Impact

Environmental performance has become one of the primary reasons industries are transitioning from coal to biomass.

Coal

• High CO₂ emissions
• High SOx
• Higher particulate emissions
• Larger environmental compliance costs

PKS Fiber

• Carbon-neutral biomass (under many accounting frameworks)
• Lower sulfur emissions
• Lower particulate emissions with proper combustion
• Supports renewable energy initiatives

Many manufacturers adopt biomass systems to meet ESG objectives and reduce dependence on fossil fuels.

Maintenance Comparison

Coal combustion generally generates:

• More ash
• More slag
• Higher fouling
• Increased cleaning frequency

PKS Fiber typically produces:

• Less clinker
• Lower sulfur corrosion
• Reduced ash accumulation
• Easier furnace maintenance

Proper fuel preparation remains essential to maintain consistent combustion efficiency.

Operating Cost Considerations

The economic advantage depends largely on local fuel prices.

Coal offers:

• Higher energy density
• Lower storage volume
• Stable long-term combustion

PKS Fiber may provide:

• Lower fuel cost in palm-producing regions
• Renewable fuel incentives
• Reduced emission compliance costs
• Lower environmental taxes where applicable

A complete evaluation should include:

• Fuel purchase price
• Transportation cost
• Storage requirements
• Maintenance expenses
• Emission control costs
• Long-term fuel availability

Applications

Biomass Thermal Oil Heaters using Palm Kernel Shell Fiber are suitable for:

• Palm Oil Mills
• Edible Oil Processing
• Rubber Industry
• Chemical Plants
• Asphalt Plants
• Textile Industry
• Food Processing
• Wood Drying
• Plywood Industry
• Particle Board Manufacturing
• Animal Feed Production
• Biomass Dryers

Why Choose a Biomass Thermal Oil Heater?

Compared with conventional steam systems, thermal oil heaters provide:

• High temperatures up to 350°C
• Low operating pressure
• Excellent temperature stability
• High thermal efficiency
• Lower water treatment costs
• Reduced scaling and corrosion
• Lower maintenance requirements
• Longer equipment life

When combined with Palm Kernel Shell Fiber, these systems offer an environmentally friendly and cost-effective heating solution for modern industrial facilities.

Conclusion

There is no single fuel that is ideal for every industrial application.

Coal remains an excellent option where maximum energy density and continuous high-load operation are priorities.

However, Palm Kernel Shell Fiber has become an increasingly attractive alternative due to its renewable nature, lower emissions, reduced environmental impact, and competitive operating costs—especially in regions with abundant palm oil production.

Before selecting a fuel, manufacturers should evaluate fuel availability, total operating costs, combustion technology, maintenance requirements, emission regulations, and long-term sustainability goals to ensure the most reliable and economical thermal oil heating system.

Advantages

• High heating value (typically 5,000–7,000 kcal/kg)
• Suitable for medium and large-capacity steam boilers
• Stable combustion characteristics
• Widely available in many industrial regions
• Lower fuel consumption per ton of steam compared to biomass

Disadvantages

• Higher CO₂ emissions
• Produces sulfur oxides (SOx) and nitrogen oxides (NOx)
• Generates significant ash requiring disposal
• Requires emission control equipment
• Increasing environmental regulations and carbon taxes in many countries

Palm Kernel Shells (PKS) as Boiler Fuel

Palm kernel shells are a renewable biomass fuel generated as a by-product of the palm oil industry. They have become increasingly popular for biomass boilers because of their sustainability and lower environmental impact.

Advantages

• Renewable and carbon-neutral biomass fuel
• Lower sulfur content than coal
• Reduced greenhouse gas emissions
• Lower environmental impact
• Suitable for companies pursuing ESG and sustainability goals
• Can qualify for renewable energy incentives in some regions

Disadvantages

• Lower calorific value than coal
• Fuel quality varies depending on moisture content
• Larger storage volume required
• Supply may fluctuate with palm oil production
• Requires proper fuel handling to prevent moisture absorption

Coal vs. Palm Kernel Shell Comparison

Boiler Efficiency Considerations

The actual boiler efficiency depends not only on fuel type but also on:

• Boiler design
• Combustion control
• Excess air settings
• Fuel moisture
• Fuel particle size
• Heat recovery systems
• Operator practices

Modern biomass boilers can achieve efficiencies comparable to coal-fired systems when properly designed and operated.

Fuel Consumption Example

Assume a factory requires approximately 1,000,000 kcal/hour of heat.

Using Coal

• Heating value: 6,000 kcal/kg
• Required fuel:

1,000,000 ÷ 6,000 ≈ 167 kg/hour

Using Palm Kernel Shells

• Heating value: 4,200 kcal/kg
• Required fuel:

1,000,000 ÷ 4,200 ≈ 238 kg/hour

Although PKS consumption is higher, the fuel cost per kilogram and environmental benefits may offset the increased consumption depending on local market prices.

Environmental Comparison

Coal

• High CO₂ emissions
• Higher SOx emissions
• Higher NOx emissions
• More fly ash
• Greater environmental compliance costs

Palm Kernel Shells

• Renewable biomass
• Lower sulfur emissions
• Lower net carbon emissions
• Less ash production
• Supports sustainable manufacturing initiatives

Cost Considerations

The most economical fuel depends on:

• Local fuel prices
• Transportation costs
• Boiler efficiency
• Maintenance costs
• Environmental compliance costs
• Availability of fuel supply

While coal generally provides more energy per kilogram, palm kernel shells can offer lower overall operating costs in regions with abundant palm oil production.

Which Fuel Should You Choose?

The ideal boiler fuel depends on your production requirements, operating costs, environmental objectives, and fuel availability. Below are general recommendations to help guide your decision.

Choose Coal if:

• Maximum heat output and high combustion efficiency are your top priorities.
• Coal is readily available at a stable and competitive price.
• Your facility operates an existing coal-fired boiler system.
• Environmental regulations permit the use of fossil fuels.
• Lower fuel consumption per unit of heat is an important consideration.

Choose Palm Kernel Shells (PKS) if:

• Sustainability and renewable energy are part of your corporate strategy.
• Reducing greenhouse gas emissions and improving environmental performance are key objectives.
• Palm kernel shells are locally available at competitive prices.
• Your company aims to comply with long-term environmental regulations or ESG initiatives.
• You want to reduce dependence on fossil fuels while maintaining reliable steam generation.

Selecting the right boiler fuel requires balancing thermal performance, operating costs, fuel availability, environmental compliance, and long-term business objectives. There is no single fuel that is ideal for every industrial application.

Coal remains a reliable choice for manufacturers that require high heat output, stable combustion, and lower fuel consumption due to its high calorific value. It is particularly suitable for facilities with existing coal-fired boiler systems and access to an economical, consistent coal supply.

Palm Kernel Shells (PKS), by contrast, offer a sustainable and renewable biomass alternative. Although PKS has a lower heating value and typically requires higher fuel consumption than coal, it provides significant environmental benefits, including lower sulfur emissions, reduced greenhouse gas emissions, and improved sustainability performance. In regions with abundant palm oil production, PKS can also be a highly cost-effective fuel option.

For factories located in Southeast Asia and other palm oil-producing regions, PKS is increasingly becoming the preferred biomass fuel due to its wide availability, competitive pricing, and contribution to corporate Environmental, Social, and Governance (ESG) initiatives.

Before making a final decision, industries should evaluate the following factors:

• Total fuel cost and long-term price stability
• Local fuel availability and supply reliability
• Boiler design and combustion compatibility
• Required steam capacity and thermal efficiency
• Maintenance and ash handling requirements
• Environmental regulations and emission limits
• Sustainability goals and carbon reduction targets
• Return on investment (ROI) and lifecycle operating costs

Ultimately, both coal and Palm Kernel Shells (PKS) are proven fuels for industrial steam boilers. The most suitable choice depends on each facility’s operational priorities, energy strategy, and environmental commitments. A comprehensive technical and economic evaluation will ensure the selected fuel delivers reliable steam generation, maximum efficiency, and the lowest overall cost of ownership throughout the boiler’s service life.

Parameter

Definition of Biomass Energy

The definition of biomass energy is used as a substitute for fuel, so the role of land renewal as a source of biomass energy needs to be done to produce biomass energy itself. Although the source of biomass energy for several types is naturally available, to produce this biomass energy, it is certainly required in large quantities to produce large fuel energy.

The use of biomass energy from natural materials really needs to be done to get rid of dependence on non-renewable energy. Developments continue to be developed to produce biomass energy that can be renewed quickly and remains friendly to the environment. Basically, the notion of biomass energy as an energy-producing material from biological elements such as dead organisms or living plants will certainly be increasingly considered for energy sustainability in the future.

The use of biomass energy can be used as a way out of limited non-renewable energy. For this reason, biomass energy has been widely studied in previous years to replace the scarcity of non-renewable fuel energy. Indonesia, with its abundant natural potential, actually has the potential to produce diverse biomass energy for human needs. The management of these biomass energy-producing materials will actually save the state more expenditure with good management. For this reason, the understanding of biomass energy needs to be known by all levels of society to develop renewable energy.

Palm shells as charcoal briquettes

Contemporary transformation, where the variety of Palm Oil is not only used as a source of oil. But also take advantage of the pile of shell production waste which has been a complaint. Something that is neglected can in fact be processed into raw materials with high rupiah value, environmentally friendly as well as without pollution. Call it one of them is to make the shell or coconut shell as Charcoal Briquettes. Hard characteristics of the shell containing a combination of elements in it. Among them are moist water content, low ash intensity, high evaporation, and moderate active carbon content, making it an efficient raw material. For more clarity, it would be nice to know the advantages of palm shells as charcoal briquettes in a complex manner. As an antidote to this curiosity, you should read the reviews below to the end.

Benefits of Palm Shells as Charcoal Briquettes

Basically, charcoal briquettes are an alternative fuel that uses wood and shells as the main media. This briquette is projected to be able to replace ancient natural resources which are very popular with the needs of the community. The briquette material itself is processed by first being mashed which is then mixed with starch and formed in special molds as needed. The ongoing process will certainly have an impact on the quality of the use of charcoal briquettes made from palm shells. As for some of the advantages of palm shells as charcoal briquettes, they will be presented in a straightforward manner as follows:

Efficient and Economical

The first advantage of charcoal briquettes made from palm shells is that they are efficient in use. This alternative raw material is perfect for those of you who want to save on the budget for daily kitchen needs. Saving on the use of raw materials greatly affects the shopping budget and lasts a long time. the price is economical but the quality is reliable, no doubt.

Safer

Choosing Palm Shell Charcoal Briquettes as the main fuel in meeting your needs, it means that you have avoided unwanted risks. Mainly combustion accidents or the risk of exploding tubes. Because by using this charcoal briquette your safety will be more guaranteed.

Environmentally friendly

The utilization of this palm shell production waste also has the advantage of being friendly to the environment. This is because the palm shell contains elements that are rich in benefits. Among them, starting from having minimal ash content, which is approximately 2-3%. So that the former combustion leaves less ash. Contains the intensity of the moisture content (moisture in Analysis), which is 7-8%. In addition, it also has around pure activated carbon (fixed carbon) with a lot of intensity of 20-22%. As well as the quantity of volatile matter (volatile evaporation) which can be categorized as quite high, is around 69-70%. All of these elements make palm shells the main fuel medium whose status is friendly to the environment.

Durable (Durable)

Palm shell charcoal briquettes also have advantages in the combustion process. In the sense of having a long duration when used. In short, durable alias durable in use. It is not surprising that briquettes made from palm shells are an excellent alternative and a recommendation to be used as daily fuel. Moreover, this durable quality is matched by an economical price entity.

Smokeless

Another advantage possessed by Palm Shell Charcoal Briquettes is that they contain a high level of evaporation intensity (volatile matter), which is in the range of 69-70%. Thus, this means that it will be much friendlier to the surrounding environment. Because the palm kernel shell contains this substance, carbon sulfur is relatively lower than the others, so it can reduce air pollution.

Odorless

Using this briquette, will not emit an unpleasant and strange smell. Because Palm Shell Charcoal Briquettes do not smell at all. So it is suitable for the main fuel of your kitchen.

Maximum Combustion

In addition, the use of charcoal briquettes also has advantages in terms of maximum combustion. Because the heat generated is continuous and stable. Very suitable for cooking and so on.

Renewable Resource Benefit

Palm shells which are abundant industrial production waste (wasted) can be used as an easily renewable resource. In the sense of being the main media for the presence of Palm Shell Charcoal Briquettes as an alternative fuel.

Palm shells as pavers

When discussing the product of road pavers, in general, it will be directed to the term asphalt. One of the raw materials that rely on natural resources. Products that are often intensively used as the main raw material soften the condition of the road shoulders. But do you think that there are no other alternatives to pavers? Well, not curious what the product is. Call it the product palm shells. One of the industrial production wastes from the manufacture of palm oil. This is a new breakthrough in utilizing the waste that is wasted. So why the palm shell? Or, in particular, there are advantages of palm shells as road pavers. To treat this curiosity, it would be nice if you finish reading the reviews below.

The Advantages of Palm Oil Shells As Road Pavement

There are several things to consider why you should make palm shells as pavers. There are several things related to the advantages of paving the way using palm shells, which will be explained in a straightforward manner below:

Elemental Content Proportionality

Among them, starting with the elements contained in the palm shell. The elements are minimal ash content, approximately 2-3%. The moist water intensity of 7-8%. The content of activated carbon is moderate, which is 20-22%, up to a high-value evaporation quantity, which is 69-70%. This proportionality content provides rich benefits for human life.

Abundant Raw Material

Palm oil industry factories are basically sure to carry out oil production on a large scale. So that spontaneously and automatically, production waste in the form of palm shells will pile up (huddle). On the other hand, here, this production waste is the main ingredient for producing alternative energy that is easily obtained, especially around factories. Where palm shells are used as a road paving material to replace asphalt. The availability of palm shells or shells in large quantities (abundance) is very possible to be reprocessed into more useful raw materials. At least this is a place to maximize the use of abundant resources.

Mutual Symbiosis

By making palm shells as the main raw material for paving roads, at least it can reduce the intensity of industrial factory production waste. A production waste recycling system is the right solution that must be taken. Where recycling management is relatively more likely to be a mutualist symbiosis. In fact, this new breakthrough is actually a form of complexity in the creative and innovation process that deserves to be developed as well as reference material.

Long Term Benefits

Another advantage that Palm Oil has as pavers is that there will be useful infrastructure in the long term. Having smooth and smooth road access is of course the dream of everyone, especially those who have private vehicles. Utilizing waste as the main hardening material for roads actually makes a big contribution to perpetuating road construction. Because the strength possessed by palm shells is not much different from the results promised by asphalt.

Far Economical Price

Meanwhile, the last advantage of palm oil shells as pavers lies in the budget that must be spent. Where the selling price of palm shells is more pocket-friendly, this is a clear differentiator from other raw materials. With a relatively cheap price benchmark, at least it will really help you in minimizing the budget for doing road construction. So that the remaining budget can be used for other needs related to the human resources needed when doing asphalting.

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PT Indira Mitra Boiler
Ratman Bejo
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