Transitioning from petroleum-derived feedstocks for plastic production to bio-based alternatives is a top priority, aiming to enhance the environmental sustainability of the polymer industry, as outlined by IDTechEx, a prominent market research entity. Despite this emphasis, achieving economically viable commercial production of industrial chemicals through biotechnology often encounters obstacles. Overcoming biological and process-related challenges remains a significant hurdle to establishing competitive industrial production within the broader chemicals market.

The urgency for more ecologically sustainable polymer choices is increasingly apparent, with four key influencers steering progress toward sustainability: governments, retailers or brands, NGOs or activist groups, and the public, according to the market research institute.

IDTechEx anticipates fluctuations in the development of bio-based polymers as companies strive to scale production to profitability, with varying degrees of success. Depending on factors such as the end product, biomanufacturing processes, technical parameters, and the status of the targeted end market, chemicals produced through white biotechnology could achieve long-term success, notes the research institute.

Highlighting bio-based feedstocks, IDTechEx identifies CO2 as a particularly intriguing option, suggesting that advancements in carbon capture and utilization technologies could transform captured CO2 into a carbon source for chemical and polymer production. Other bio-based feedstocks gaining traction include corn sugar, vegetable oil, and lignocellulosic biomass used in bioplastic production.

White biotechnology, also known as industrial biomanufacturing, emerges as a promising avenue to convert bio-based feedstocks into commodity chemicals and materials. This approach utilizes living cell factories such as bacteria, yeast, and fungi. Beyond its use of bio-based feedstock, the value proposition of white biotechnology lies in its potential to use less energy, generate less waste, and produce biodegradable products.

Advancements in synthetic biology tools and techniques contribute to the feasibility of industrial commodity chemical production, with companies like BASF and Covestro expressing interest in leveraging white biotechnology for ecological polymers.

Examining the application of sustainable polymers in end markets, IDTechEx underscores the challenges faced by bio-based competitors in sectors like packaging. The packaging industry, subject to increasing regulations on single-use plastics, witnesses a shift toward recycled and bio-based plastics to enhance environmental sustainability.

While certain application areas show progress, achieving 100% bio-based packaging still faces technical barriers. IDTechEx predicts more collaborations across the polymer value chain to develop sustainable polymers for key markets like packaging.

Emphasizing the role of recycling in a circular plastics economy, IDTechEx asserts that it will continue to be crucial. Although mechanical recycling remains dominant in the short to medium term, significant industrial activity surrounds chemical recycling and the dissolution of plastics. Advanced recycling addresses the limitations of mechanical recycling, producing recycled plastic nearing the quality of virgin plastic.

However, chemical recycling remains controversial, with NGOs accusing petrochemical giants of "greenwashing" the environmental impact. IDTechEx advocates for a case-by-case assessment of the sustainability and economic viability of new bio-based polymer developments, citing the massive market potential for sustainable polymers. As single-use plastic bans and carbon zero commitments rise alongside plastic consumption, IDTechEx anticipates growing pressure on materials producers.

In conclusion, while the plastic circular economy gains momentum, it faces challenges in surpassing the petrochemical market, according to IDTechEx.