For seven decades, the chemical industry has relied on a brute-force approach to making plastics: superheat hydrocarbons to somewhere between 800 and 900 degrees Celsius, crack them apart, and reassemble the fragments into polymers. The process devours energy. It belches carbon. And it's the backbone of a trillion-dollar global enterprise.
Now, a handful of companies and research labs are demonstrating that you might not need all that heat—or, in some cases, the cracker at all. Electromagnetic heating, delivered through induction coils or microwave chambers, is producing comparable results at lower temperatures. Some processes are converting plastic waste directly into virgin-quality monomers, bypassing the infamous furnace entirely. The implications, if these technologies scale, reach beyond incremental efficiency. They threaten to upend the industrial logic that has governed petrochemical production since the 1950s.
The Old Way: Expensive, Hot, and Carbon-Heavy
Conventional steam cracking is an exercise in controlled violence. Heat breaks carbon-carbon bonds; speed and temperature determine which molecules form. In the United States, producing a ton of ethylene this way generates roughly 869 kilograms of CO₂ equivalent, according to recent lifecycle analyses. Thermal duty—the sheer energy required to reach cracking temperatures—accounts for much of that footprint. Historically, natural gas or oil supplied the heat. Even when you electrify the furnace, as BASF, SABIC, and Linde did in a 6-megawatt demonstration unit in Ludwigshafen last year, the fundamental chemistry doesn't change. You're still cracking molecules at punishing temperatures. You've just swapped the fuel source.
The problem compounds when you try to feed recycled material into these systems. Pyrolysis oils derived from mixed plastic waste arrive contaminated—heteroatoms, metals, olefins that gum up reactor coils. Most producers plan to hydrotreat or extensively filter these oils before introducing them to existing crackers. That preprocessing step adds cost and complexity, which helps explain why advanced recycling still supplies less than a single-digit percentage of global polymer output. McKinsey estimated the sector could reach 4 to 8 percent of total polymer demand by 2030, but that assumes more than $40 billion in capital spending and a degree of feedstock consistency that hasn't yet materialized.
The Physics of Selective Heating
Electromagnetic methods—induction and microwave heating—work differently. Instead of bathing an entire reactor vessel in heat, they target catalyst beds or absorbing materials directly. The result is rapid, localized heating and, according to researchers at Louisiana State University and groups publishing in journals like RSC Energy & Environmental Science, improved selectivity in plastic upcycling compared with conventional thermal processes.
In one microwave-assisted catalytic pyrolysis study, polyolefins achieved 100 percent conversion over zeolite catalysts under microwave conditions. The same feedstock managed only 90 percent conversion thermally. Product distribution could be tuned—light olefins versus aromatics—depending on catalyst choice and the presence of microwave absorbers like silicon carbide or metal particles.
A 2024 conference paper described direct microwave upcycling of polypropylene to propylene, achieving yields up to 55 weight percent at 400 degrees Celsius with ruthenium-iron oxide catalysts. Thermal conditions at the same temperature produced negligible conversion. Magnetic induction-assisted pyrolysis on carbon catalysts has shown similar promise, stabilizing bed temperatures and yielding hydrocarbons at lower apparent temperatures than indirect Joule heating.
These aren't marginal gains. The technical literature suggests fundamentally different reaction pathways enabled by how energy is delivered. Whether that translates to commercial economics is another question.
Pilot Plants and First Movers
Anellotech, working with Technip Energies, operates a half-ton-per-day pilot plant converting mixed plastics directly to benzene, toluene, xylene, and light olefins. The company's Plas-TCat process uses a fluidized bed and claims up to 50 percent CO₂ reduction versus fossil-derived monomers. Crucially, it doesn't require steam cracker furnaces, though downstream purification is still necessary. Anellotech is advancing toward licensing deals and commercialization, but the technology has yet to prove itself at the 100,000- to 200,000-ton-per-year scale that would make it a true cracker substitute.
Aduro Clean Technologies took a different approach. Its Hydrochemolytic process uses water-based catalytic chemistry to produce oils from plastic waste. In 2025, the company reported pilot-scale steam cracking trials where its oil was processed "as produced"—no hydrotreatment, no dilution—yielding ethylene and propylene comparable to fossil feeds. Ofer Vicus, Aduro's CEO, described the results as pointing to "strong potential… a pathway with significantly reduced or simplified upgrading steps." The company is selecting a demonstration plant site in the Netherlands and targeting early 2027 for readiness. Engineering work is underway with partners including KraussMaffei.
If those results hold at commercial scale across variable feedstocks—a substantial if—Aduro's approach could reduce both capital and operating expenses relative to traditional pyrolysis-plus-hydrotreatment routes.
For certain polymers, the case for bypassing crackers has already crossed from theory to reality. Carbios celebrated the groundbreaking of a 50,000-ton-per-year PET enzymatic recycling plant in Longlaville, France, with first deliveries planned for 2026. Emmanuel Ladent, the company's CEO, called it "the beginning of a new era" for PET biorecycling. The process returns monomers—terephthalic acid and ethylene glycol—suitable for virgin-grade PET. No cracking required.
Meanwhile, Indaver's Plastics2Chemicals facility in Antwerp delivered the first commercial batches of recycled styrene monomer to INEOS Styrolution and Trinseo in 2025, enabling food-grade styrenics via mass-balance certification. For PET and polystyrene, at least, the cracker bypass is operational.
gr3n is advancing a microwave-assisted alkaline hydrolysis process for PET at a demonstration plant in Italy, with a 40,000-ton-per-year commercial plant planned for Spain in 2027. Eastman's methanolysis facility in Kingsport, Tennessee, reached on-spec production and revenue generation in 2024. The U.S. Department of Energy has pledged up to $375 million for a second Eastman plant in Longview, Texas.
Where the Math Breaks
Not every advanced recycling venture has flourished. Brightmark's Indiana pyrolysis plant defaulted on bonds in 2025 and is running at roughly 5 percent capacity while the company pursues a sale. Ioniqa, a PET glycolysis player, filed for bankruptcy protection in 2024, citing unfavorable economics and delayed policy support. Shell quietly walked back its 2019 pledge to use 1 million tons per year of plastic waste by 2025, pointing to feedstock and market constraints.
These failures underscore the chasm between pilot-scale promise and commercial viability. They also highlight execution risk, feedstock variability, and the unforgiving economics of competing against virgin fossil-based polymers when oil prices are low.
ExxonMobil, by contrast, has processed more than 100 million pounds of plastic waste through its Baytown advanced recycling units as of mid-2025. The company is expanding capacity toward a global target of 1 billion pounds per year by 2027 and positioning advanced recycling as a scalable solution tied to customer demand for certified-circular plastics. BASF, SABIC, Dow, and LyondellBasell are similarly integrating pyrolysis-derived oils into their crackers, often marketing the resulting polymers under mass-balance schemes.
The incumbents are moving, but largely within the existing cracker infrastructure. That's the safe bet—upgrading rather than replacing.
Wood Mackenzie estimates that 24 percent of global ethylene capacity is at risk of closure in the current downcycle due to overbuilding and high energy costs. EU plastics and recycling sectors face pressure from cheap imports and facility closures. Against that backdrop, technologies that reduce energy intensity or eliminate preprocessing steps could offer a cost advantage—assuming they can scale and handle feedstock variability. That's a lot of assumptions.
Policy as Tailwind, or Headwind
The European Union's Packaging and Packaging Waste Regulation entered into force in February 2025 and applies from August 2026. It sets recycled-content targets, restricts PFAS in food-contact packaging, and aims to cut packaging waste. The Commission is developing calculation methods for chemically recycled content in beverage bottles, explicitly excluding fuel uses from recycled-content claims.
California's AB 793 mandates 25 percent post-consumer recycled content in PET beverage bottles as of January 2025, rising to 50 percent in 2030. These policies create demand pull, but they also introduce compliance complexity around mass-balance accounting and traceability.
ISCC PLUS certification, which underpins many mass-balance claims, is undergoing a public consultation on guardrails and traceability through March 2026. Environmental groups continue to question the rigor of chemical recycling's green claims and mass-balance methodologies. The UN plastics treaty negotiations adjourned in 2025 without consensus, with an administrative session set for February 2026 that won't include substantive negotiation.
Global policy direction remains uncertain, even as regional mandates tighten. Whether that's a tailwind or a headwind depends on where you sit and what technology you're betting on.
What Comes Next
Electromagnetic heating—whether induction or microwave—is advancing from lab curiosities to pilot demonstrations. Multiple academic groups and early-stage companies are exploring these methods, and more pilot and demonstration assets are expected between 2026 and 2028. Durability, catalyst deactivation, and energy intensity at industrial scale remain open questions. The jump from half a ton per day to 50,000 tons per year is where most technologies stumble and die.
For polyolefins—the workhorse plastics in packaging and consumer goods—the dominant commercial pathway still routes through steam crackers after some form of upgrading. The exceptions, like Aduro's "as-produced" oil and Anellotech's direct catalytic route, are compelling at pilot scale but require commercial proof. PET and polystyrene depolymerization have crossed that threshold, with multiple first-of-a-kind commercial plants delivering product or under construction.
The next two years will clarify whether electromagnetic processes and simplified upgrading routes can achieve similar commercial traction for mixed polyolefins. Dr. Martin Brudermüller of BASF called electrified steam crackers a "key technology" to cut emissions in one of the industry's most energy-intensive processes. That's true enough, but electrification still preserves the cracker itself.
The companies working to eliminate or radically simplify that step are chasing a bigger prize. If they succeed, the 70-year-old paradigm of high-temperature steam cracking may finally face a credible alternative. If they fail, the industry will keep doing what it's always done—just with a cleaner power source. Either way, the next chapter is being written now, in pilot plants and demonstration units scattered across three continents. The incumbents are watching closely. So are the venture capitalists.
