Search Results - environment

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Efficient Room Temperature, Ambient Pressure Liquid Ammonia Storage System

Executive Summary Liquid ammonia is current stored and transported in very large quantities in refrigerated units, railcars, tanker trucks and pressurized containers. While the majority of existing uses are as a nitrogen fertilizer for agricultural uses, increasing attention has been turned to ammonia as a green, carbon free energy storage medium for...
Published: 5/17/2023   |   Inventor(s): Mi Chenija, Reza Ghazfar, Milton Smith, Iii, Thomas Hamann
Keywords(s):   Category(s): Chemicals, Agriculture, Energy, Environment, Transportation

Sustainable Chain Extenders for Recycling Polyesters

Executive Summary Polyesters comprise a significant portion of plastics entering landfills. One issue that limits their recycling is natural degradation during melt processing which lowers their molecular weight and melt viscosity. Reactive chain extenders are often used in this case to build back the molecular weight of the polyester during reprocessing....
Published: 2/17/2023   |   Inventor(s): Muhammad Rabnawaz, Mohamed Abdelwahab, Ajmir Khan
Keywords(s):   Category(s): Materials, Environment, Packaging

A Robust Algal Assemblage to Enhance Carbon Dioxide Capture and Improve Biomass Production

­A Robust Algal Assemblage for Biomass Production and Carbon Dioxide Capture Executive Summary: Stable algal assemblage cultured for biomass production and carbon dioxide capture is robust under different bioreactor configurations, environmental conditions, and CO2 supplements. Background: Carbon dioxide accounts for 82% of greenhouse gas...
Published: 9/13/2023   |   Inventor(s): Wei Liao, Yan (susie) Liu
Keywords(s):   Category(s): Agricultural, Agriculture, Energy, Environment, Environmental

Tunable Degradation of Fibers

­ Executive Summary Degradation of polymeric materials is an important process in recycling, composting and rendering them innocuous to the environment. Controlling the rate by which the materials degrade remains challenging and impacted by the nature of the materials and their use in applications where combinations of materials exist to fulfil...
Published: 2/17/2023   |   Inventor(s): John Dorgan, Bin Tan
Keywords(s):   Category(s): Advanced Materials, Environment, Packaging

Process for Depolymerizing Recycled Polystyrenes

­Executive Summary Each year, billions of lbs of polystyrene and styrene copolymers are discarded as waste and very little is recycled. While some technologies have attempted pyrolysis in fluidized bed reactors or solvent processes to convert the polystyrene back to monomer, high costs, long process times and a myriad of reaction products have...
Published: 7/11/2023   |   Inventor(s): Muhammad Rabnawaz, Ajmir Khan, Vikash Kumar
Keywords(s):   Category(s): Chemicals, Environment, Materials

Rapid Process for Depolymerizing Recycled PET

­Executive Summary Each year, billions of lbs of polyethylene terephthalate (PET) and polyethylene terephthalate glycol (PETG) are discarded as waste. While some of the material is separated, recycled and incorporated into new materials, the degradation of the polymers back to their original monomers (a.k.a. chemical recycling) remains prohibitive...
Published: 2/17/2023   |   Inventor(s): Muhammad Rabnawaz, Ajmir Khan
Keywords(s):   Category(s): Chemicals, Environment, Materials

Recombinant Protein for Rare Earth Element Binding

Executive Summary Rare earth elements (REEs) are essential materials used in advanced technologies such as electronics, process catalysts, magnets, batteries and MRI contrast agents. Although used in small quantities for each application, they end up in surface water and soil during mining, processing and waste disposal. This presents growing environmental...
Published: 4/7/2023   |   Inventor(s): Harvey Lee, Connor Grady, Assaf Gilad
Keywords(s):   Category(s): Medical, Biotechnology, Environment, Test and Measurement

Novel Chain Extenders for Recycling Polyesters

­Executive Summary Polyesters comprise a significant portion of plastics entering landfills. One issue that limits their recycling is natural degradation during melt processing which lowers their molecular weight and melt viscosity. Reactive chain extenders are often used to build back the molecular weight of the polyester, however, their use can...
Published: 2/17/2023   |   Inventor(s): Muhammad Rabnawaz
Keywords(s):   Category(s): Advanced Materials, Environment, Packaging

Mesoporous MFI-Zeolite Catalysts for Aromatics Production

Executive SummaryThere is a need for a green, renewable, and sustainable route to produce chemicals currently made from petrochemical feedstocks. MSU researchers have developed a new catalyst system for converting biomass to aromatics. The aromatics can be further transformed into downstream chemicals such as terephthalic acid, which can be used in...
Published: 8/20/2022   |   Inventor(s): Shantanu Kelkar, Christopher Saffron, Thomas Pinnavaia, Robert Kriegel
Keywords(s):   Category(s): Chemicals, Environment, Agricultural

Chemical Recycling of Polylactic Acid

Executive SummaryA new environmentally friendly process developed at Michigan State University derives clean-use plastics from contaminated Polylactic Acid (PLA). This new method of recycling PLA yields clean-use plastics using inexpensive green solvents and lower temperatures.Description of TechnologyCurrent chemical recycling of PLA uses toxic solvents...
Published: 2/17/2023   |   Inventor(s): Rafael Auras, Fabiola Iniguez-Franco, Maria Rubino, Herlinda Soto-Valdez, Daniel Holmes, Susan Selke, Xiaoyi Fang
Keywords(s):   Category(s): Chemicals, Environment
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