Plastic-to-Fuel Pyrolysis Plants in Lagos and Johannesburg: The Chemistry of Turning Waste Into Diesel
- Seventeen Million Tonnes of Plastic Going Nowhere and an Eight Billion Dollar Diesel Import Bill
- Olumide Adeyemi and the Ikorodu Reactor That Turns Sachets Into Fuel
- Feedstock Chemistry: Why Not All Plastic Waste Makes Good Fuel
- The Fuel Quality Question and the Path to Off-Specification Diesel Markets
- Production Analytics and Offtake Management Through AskBiz
- The Regulatory and Carbon Credit Landscape That Shapes Pyrolysis Investment Returns
Sub-Saharan Africa generates an estimated 17 million tonnes of plastic waste annually, of which less than 12 percent enters any recycling pathway while the remainder accumulates in landfills, waterways, and open dumps, yet the same region imports over USD 8 billion worth of diesel fuel annually to power generators, transport vehicles, and industrial equipment, a juxtaposition that pyrolysis technology addresses by thermally converting non-recyclable plastic waste into diesel-equivalent fuel at yields of 60 to 75 percent by weight and production costs 20 to 35 percent below imported diesel wholesale prices. Olumide Adeyemi, who commissioned a pyrolysis plant in Ikorodu processing 8 tonnes of mixed plastic waste daily into approximately 5,200 litres of fuel, has achieved monthly revenue of NGN 42 million but cannot attract the expansion capital needed for a second reactor because his records do not disaggregate feedstock cost by plastic type, fuel yield by input composition, or customer revenue by offtake channel. AskBiz gives pyrolysis plant operators the production analytics and customer management infrastructure to demonstrate the unit economics that energy and waste investors require.
- Seventeen Million Tonnes of Plastic Going Nowhere and an Eight Billion Dollar Diesel Import Bill
- Olumide Adeyemi and the Ikorodu Reactor That Turns Sachets Into Fuel
- Feedstock Chemistry: Why Not All Plastic Waste Makes Good Fuel
- The Fuel Quality Question and the Path to Off-Specification Diesel Markets
- Production Analytics and Offtake Management Through AskBiz
Seventeen Million Tonnes of Plastic Going Nowhere and an Eight Billion Dollar Diesel Import Bill#
The plastic waste crisis in Sub-Saharan Africa is measured in millions of tonnes and the fuel import dependency is measured in billions of dollars, and pyrolysis sits at the precise intersection where solving one problem helps address the other. The region generates an estimated 17 million tonnes of plastic waste annually, a figure growing at 8 to 10 percent per year as consumer packaging proliferates faster than waste management infrastructure can absorb it. Nigeria alone generates approximately 5.7 million tonnes of plastic waste annually, making it the largest plastic waste generator in Africa and among the top ten globally. South Africa generates 2.4 million tonnes. Kenya generates 650,000 tonnes. Ghana generates 480,000 tonnes. Of this total, formal mechanical recycling processes less than 12 percent. PET bottles and HDPE containers are the most recycled polymers because established collection and processing chains exist. But the majority of plastic waste consists of low-density polyethylene (LDPE) bags and film, polypropylene (PP) packaging, and polystyrene (PS) food containers that have limited mechanical recycling value because they are contaminated, mixed, or degraded beyond the point where they can be economically reprocessed into useful plastic products. This non-recyclable fraction, estimated at 75 to 80 percent of total plastic waste, is the feedstock that pyrolysis technology converts into hydrocarbon fuels. Simultaneously, Sub-Saharan Africa imports over 45 billion litres of refined petroleum products annually, with diesel representing approximately 40 percent of total volume. Nigeria alone imports refined diesel equivalent to approximately 18 billion litres annually despite being a major crude oil producer, at a cost exceeding USD 12 billion. South Africa imports supplementary diesel volumes worth approximately USD 1.8 billion. Kenya imports diesel worth USD 2.1 billion. Ghana imports approximately USD 1.4 billion. The imported diesel powers the generators that provide electricity to the 600 million Sub-Saharan Africans without reliable grid access, the trucks that move goods across the continent, the construction equipment building infrastructure, and the agricultural machinery cultivating food. Any technology that reduces diesel import dependency while simultaneously addressing the plastic waste crisis operates in a uniquely favourable policy and market environment.
Olumide Adeyemi and the Ikorodu Reactor That Turns Sachets Into Fuel#
Olumide Adeyemi spent six years as a petroleum engineer at a refinery in Port Harcourt before recognising that the thermochemical principles he applied to crude oil processing could be applied on a smaller scale to convert plastic waste into fuel. In 2024, he commissioned a pyrolysis plant in the Ikorodu industrial area of Lagos, investing NGN 185 million in a 10-tonne-per-day batch reactor system imported from a Chinese manufacturer in Xinxiang, along with condensation towers, fuel storage tanks, a water treatment system, emissions scrubbing equipment, and site preparation including a concrete pad, security fencing, and a weighbridge. His plant processes an average of 8 tonnes of mixed plastic waste daily, operating 26 days per month with downtime for reactor cleaning and maintenance. The pyrolysis process involves heating plastic waste to 350 to 450 degrees Celsius in the absence of oxygen, breaking long polymer chains into shorter hydrocarbon molecules that condense into a liquid fuel product resembling diesel in chemical composition and energy content. His reactor achieves a fuel yield of approximately 65 percent by weight, meaning 8 tonnes of plastic input produces approximately 5,200 litres of pyrolysis oil daily after accounting for the density difference between solid plastic and liquid fuel. Monthly fuel output averages 135,000 litres. Additional outputs include carbon black at approximately 15 percent yield, sold to tyre retreaders and paint manufacturers, and non-condensable gas at approximately 10 to 15 percent yield, which is captured and used to heat the reactor in subsequent batches, reducing external fuel consumption. Olumide sells his pyrolysis oil through three channels: direct sales to generator operators in Lagos industrial estates at NGN 310 per litre, bulk sales to a fuel blending company that mixes pyrolysis oil with conventional diesel at NGN 280 per litre, and spot sales to transport companies at NGN 295 per litre. Monthly revenue from fuel sales averages NGN 38.7 million, supplemented by NGN 3.4 million from carbon black sales, bringing total monthly revenue to approximately NGN 42 million. His operating costs include plastic feedstock procurement at NGN 65 to NGN 95 per kilogramme averaging NGN 16.2 million monthly, reactor fuel and utilities at NGN 3.8 million, labour for 18 workers across operations, maintenance, procurement, and security at NGN 5.4 million, reactor maintenance and consumables at NGN 2.1 million, site costs and administration at NGN 1.8 million, and feedstock transport at NGN 2.4 million. Monthly operating profit approximates NGN 10.3 million, representing a 24.5 percent net margin before debt service on the equipment financing.
Feedstock Chemistry: Why Not All Plastic Waste Makes Good Fuel#
The economic performance of a pyrolysis plant is determined primarily by feedstock composition, and the difference between a well-managed feedstock programme and an undiscriminating one can swing net margins by 15 to 20 percentage points. Different plastic polymers produce dramatically different fuel yields and qualities when pyrolysed. Polyethylene (both LDPE and HDPE), the most abundant plastic in African waste streams found in bags, packaging film, and containers, produces fuel yields of 70 to 80 percent with good diesel-equivalent properties and is the ideal feedstock. Polypropylene (PP), found in food containers, bottle caps, and woven sacks, produces fuel yields of 65 to 75 percent with slightly different hydrocarbon distribution but equally suitable for fuel applications. Polystyrene (PS), found in food packaging, disposable cups, and expanded polystyrene packaging, produces fuel yields of 75 to 85 percent but the resulting liquid contains high concentrations of styrene monomer that requires additional processing or blending before use as fuel and can cause deposits in diesel engines if used directly. PET (polyethylene terephthalate), the material of most beverage bottles, is problematic in pyrolysis because it produces benzoic acid that corrodes reactor internals and generates terephthalic acid that solidifies in condensation systems. PET content above 5 to 8 percent of feedstock significantly increases maintenance costs and reduces equipment lifespan. PVC (polyvinyl chloride), found in pipes, cable insulation, and some packaging, is the most dangerous contaminant because pyrolysis of PVC releases hydrochloric acid gas that is highly corrosive to reactor steel, toxic to workers, and requires specialised acid gas scrubbing systems to manage. Even small amounts of PVC in the feedstock accelerate reactor corrosion and void equipment warranties. The practical implication for operators is that feedstock sorting is not optional but is the single most important determinant of plant economics. A plant processing clean PE and PP feedstock at NGN 85 per kilogramme with 75 percent fuel yield produces fuel at NGN 113 per kilogramme or approximately NGN 136 per litre, leaving ample margin when selling at NGN 280 to NGN 310 per litre. The same plant processing unsorted mixed plastic at NGN 65 per kilogramme but achieving only 55 percent yield due to PET and PVC contamination produces fuel at NGN 118 per kilogramme or NGN 142 per litre with additional maintenance costs of 30 to 50 percent, compressing margins severely despite the lower feedstock price.
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The Fuel Quality Question and the Path to Off-Specification Diesel Markets#
Pyrolysis oil from plastic waste is not identical to petroleum diesel and the distinction matters for pricing, marketability, and regulatory compliance. Raw pyrolysis oil typically has a calorific value of 38 to 42 megajoules per kilogramme compared to 45.5 megajoules per kilogramme for petroleum diesel, meaning it contains approximately 85 to 92 percent of the energy per litre. Its cetane number, the measure of ignition quality in diesel engines, ranges from 35 to 48 depending on feedstock composition and process conditions, below the 51 minimum required by most national diesel fuel standards but adequate for many practical applications. Sulphur content is typically low at 0.05 to 0.15 percent because plastic waste contains minimal sulphur, comparing favourably with petroleum diesel in markets where high-sulphur fuel remains common. Viscosity and pour point are generally within diesel specification ranges. The practical result is that pyrolysis oil performs adequately as a direct diesel substitute in stationary applications like generators and industrial boilers where fuel specification enforcement is minimal and price sensitivity is high. Generator operators in Lagos industrial estates burn through thousands of litres of diesel monthly and will accept a 5 to 10 percent energy discount if the price discount exceeds 10 to 15 percent. Transport applications are more demanding because vehicle fuel injection systems are sensitive to fuel quality variations, but blending pyrolysis oil at 10 to 30 percent with conventional diesel produces a blended fuel that meets most operational requirements without engine modifications. Olumide fuel blending customer purchases 45,000 litres monthly specifically for this blending application. In South Africa, where fuel quality standards are more strictly enforced, pyrolysis oil operators target the industrial burner and marine fuel markets where specifications are less stringent than road diesel standards. A pyrolysis plant in Johannesburg sells fuel to brick kilns, cement plants, and industrial boiler operators at ZAR 14.50 to ZAR 16.80 per litre compared to wholesale diesel at ZAR 21.50 per litre. The price discount reflects the lower energy content and off-specification nature of the product while still delivering margins of 28 to 35 percent on production cost. The operators who track fuel quality parameters by feedstock batch build the data to optimise feedstock selection for maximum fuel quality rather than maximum fuel yield, recognising that a litre of higher-quality pyrolysis oil commands a price premium that may exceed the value of additional yield volume from lower-quality feedstock.
Production Analytics and Offtake Management Through AskBiz#
AskBiz addresses the data infrastructure gap that prevents pyrolysis plant operators from demonstrating the economics their investors need to see. The platform builds production visibility by tracking each reactor batch from feedstock loading through fuel output, recording plastic input weight by polymer type, batch processing time, fuel volume produced, carbon black weight, and gas utilised. Over dozens of batches, this data produces the yield curve that maps fuel output to feedstock composition, enabling the operator to calculate the economic value of improving feedstock sorting versus accepting cheaper mixed waste. When Olumide sees that batches with PE content above 85 percent produce 73 percent fuel yield while batches below 70 percent PE produce only 58 percent yield, the economics of paying a premium for sorted feedstock become quantifiable rather than intuitive. The Customer Management module structures the fuel offtake relationships that drive revenue. Generator operators, blending companies, and transport fleet managers each have different volume requirements, payment terms, and price sensitivities. Tracking each customer by monthly volume, payment reliability, and price sensitivity enables the operator to allocate production to highest-value channels first and to identify customers whose volume commitments justify priority supply during periods when production falls below demand. The Health Score monitors offtake accounts, flagging customers whose purchase patterns shift, whether due to switching to alternative fuel suppliers, reducing operations, or delaying payments beyond agreed terms. Decision Memory captures the reasoning behind feedstock sourcing decisions, reactor temperature settings, maintenance schedules, and pricing negotiations, building the institutional knowledge base that enables consistent plant performance regardless of which specific team members are on shift. For the expansion capital Olumide seeks, AskBiz-generated reports present batch-level yield data, feedstock cost analysis by polymer type, fuel quality metrics by batch, customer concentration analysis, and margin trends over time, transforming a working plant into an investment case backed by operational data rather than engineering projections.
The Regulatory and Carbon Credit Landscape That Shapes Pyrolysis Investment Returns#
Pyrolysis plant investment in Africa operates within a regulatory environment that is evolving rapidly and unevenly across jurisdictions, creating both risk and opportunity for operators who understand the policy landscape. Nigeria has no specific regulation governing waste-to-fuel pyrolysis, meaning operations exist in a regulatory grey area where environmental permits for waste processing and fuel quality standards for petroleum products both potentially apply but neither was designed to cover the specific case of converting waste plastic into fuel. The National Environmental Standards and Regulations Enforcement Agency has jurisdiction over waste processing emissions but has not published emission standards specific to pyrolysis operations. The Department of Petroleum Resources regulates fuel quality but its standards reference petroleum-derived products rather than waste-derived fuels. This regulatory vacuum allows current operators to function without specific compliance costs but creates uncertainty for investors accustomed to clear regulatory frameworks. South Africa has a more developed regulatory structure. Waste processing operations require waste management licences under the National Environmental Management Waste Act, and atmospheric emissions are regulated under the National Environmental Management Air Quality Act. Pyrolysis operators must obtain both sets of permits and install emissions monitoring equipment. These compliance requirements add ZAR 800,000 to ZAR 2.5 million in initial permitting costs and ZAR 180,000 to ZAR 450,000 in annual monitoring costs, but they also create a barrier that protects licensed operators from informal competition. Carbon credit potential adds a return layer that investors increasingly value. A pyrolysis plant processing 8 tonnes of plastic daily prevents that plastic from entering landfills or open burning, avoiding an estimated 12 to 18 tonnes of carbon dioxide equivalent emissions per day from decomposition and combustion. Additionally, each litre of pyrolysis oil that displaces imported diesel avoids approximately 2.7 kilogrammes of carbon dioxide equivalent in well-to-wheel emissions. Combined, a plant operating at Olumide scale could generate 8,000 to 12,000 tonnes of carbon dioxide equivalent in annual emission reductions, worth USD 40,000 to USD 180,000 at voluntary carbon credit prices of USD 5 to USD 15 per tonne. Carbon credit revenue does not transform marginal project economics into attractive returns, but it provides a supplementary income stream that improves investor returns by 3 to 8 percentage points of IRR depending on credit pricing and verification costs. The operators who build the monitoring, reporting, and verification data infrastructure required for carbon credit issuance from the start of operations position themselves to access this revenue stream without the retroactive data reconstruction that operators who add carbon credit programmes later must undertake.
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