Novomer demonstrates large-scale production of polypropylene using waste CO2
22 May 2013
In a project funded in part by the US Department of Energy (DOE), Novomer Inc. has completed the first successful large-scale production of a polypropylene carbonate (PPC) polymer using waste CO2 as a key raw material. By using CO2 that would otherwise be emitted to the atmosphere, the process has the potential to cut greenhouse gas emissions while simultaneously reducing petroleum consumption and producing consumer products.
The PPC polymer production run, conducted by Novomer in collaboration with specialty chemical manufacturer Albemarle Corporation, tested scale-up of Novomer’s novel catalyst technology. Requiring only minor modifications to existing Albemarle facilities, the run produced 7 tons of finished polymer, which will be used to accelerate product qualification.
The Novomer process uses a catalyst to create PPC polymers through the co-polymerization of CO2 and chemicals called epoxides. The process results in polymers containing more than 40% CO2 by weight. The CO2-containing polymers can be tailored for applications with a broad range of material characteristics from solid plastics to soft, flexible forms, depending on the size of the polymer chain.
Novomer is positioning its new polymer technology to compete with conventional petroleum-based raw materials across a diverse range of applications, including flexible, rigid, and microcellular packaging foams, thermoplastics, polyurethane adhesives and sealants, and coating resins for food and beverage cans.
Conventional production of plastics such as polyethylene and polypropylene is heavily dependent on fossil fuels. The Novomer process reduces the use of these fuels by replacing up to half of the mass of the petroleum-based product with CO2. Capital requirements and operational costs to produce the new polymers closely mirror conventional production costs, and the products demonstrate increased strength and environmental resistance relative to existing polymers.
Incorporation into existing formulations results in packaging foams with higher tensile strength and load-bearing capacity, and adhesives and coatings with improved adhesion, cohesive strength, and “weatherability” properties, such as UV- and water-resistance.
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