DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Plastic Waste Product Captures Carbon Dioxide in Nanometer Pores

Journal Article · · ACS Nano

We discuss, plastic waste (PW) and increasing atmospheric carbon dioxide (CO2) levels are among the top environmental concerns presently facing humankind. With an ambitious 2050 zero-CO2 emissions goal, there is a demand for economical CO2 capture routes. Here we show that the thermal treatment of PW in the presence of potassium acetate yields an effective carbon sorbent with pores width of 0.7–1.4 nm for CO2 capture. The PW to carbon sorbent process works with single or mixed streams of polyolefin plastics. The CO2 capacity of the sorbent at 25 °C is 17.0 ± 1.1 wt % (3.80 ± 0.25 mmol g–1) at 1 bar and 5.0 ± 0.6 wt % (1.13 ± 0.13 mmol g–1) at 0.15 bar, and it regenerates upon reaching 75 ± 5 °C. The CO2 capture cost from flue gas via this technology is estimated to be <$21 ton–1 CO2, much lower than competing CO2 capture technologies. Hence, this PW-derived carbon material should find utility in the capture of CO2 from point sources of high CO2 emissions while providing a use for otherwise deleterious PW.

Research Organization:
Rice Univ., Houston, TX (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FE0031794
OSTI ID:
1881502
Journal Information:
ACS Nano, Vol. 16, Issue 5; Related Information: https://pubs.acs.org/doi/suppl/10.1021/acsnano.2c00955/suppl_file/nn2c00955_si_001.pdf; ISSN 1936-0851
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (37)

Preparation of activated carbon fibers from polyvinyl chloride journal January 2004
Improving MOF stability: approaches and applications journal January 2019
Classification and comparison of municipal solid waste based on thermochemical characteristics journal March 2014
Thermodynamics of mixed-gas adsorption journal January 1965
Valorization of waste polyethylene terephthalate plastic into N-doped microporous carbon for CO2 capture through a one-pot synthesis journal November 2020
Pyrolysis of virgin and waste polypropylene and its mixtures with waste polyethylene and polystyrene journal January 2004
Preparation of activated carbon from waste plastics polyethylene terephthalate as adsorbent in natural gas storage journal February 2017
Microplastics Generation: Onset of Fragmentation of Polyethylene Films in Marine Environment Mesocosms journal March 2017
CO2 Capture in the Sustainable Wheat-Derived Activated Microporous Carbon Compartments journal October 2016
Carbon Capture and Storage: How Green Can Black Be? journal September 2009
A facile synthesis of activated porous carbon spheres from d-glucose using a non-corrosive activating agent for efficient carbon dioxide capture journal December 2019
Membrane‐Based Olefin/Paraffin Separations journal August 2020
Systems Design and Economic Analysis of Direct Air Capture of CO 2 through Temperature Vacuum Swing Adsorption Using MIL-101(Cr)-PEI-800 and mmen-Mg 2 (dobpdc) MOF Adsorbents journal January 2017
Thermo-catalytic degradation of different plastics to drop in liquid fuel using calcium bentonite catalyst journal June 2018
Transforming Plastic Waste into Porous Carbon for Capturing Carbon Dioxide: A Review journal December 2021
Recycling and recovery routes of plastic solid waste (PSW): A review journal October 2009
Biomass-derived activated carbon with simultaneously enhanced CO 2 uptake for both pre and post combustion capture applications journal January 2016
Single step synthesis of activated bio-carbons with a high surface area and their excellent CO2 adsorption capacity journal May 2017
Optimization of the Pore Structure of Biomass-Based Carbons in Relation to Their Use for CO 2 Capture under Low- and High-Pressure Regimes journal January 2018
Solving two environmental issues simultaneously: Waste polyethylene terephthalate plastic bottle-derived microporous carbons for capturing CO2 journal October 2020
Preparation of a dual Pore Structure Activated Carbon from Rice Husk Char as an Adsorbent for CO2 Capture journal April 2019
5 Ultramicropore-rich renewable porous carbon from biomass tar with excellent adsorption capacity and selectivity for CO2 capture journal October 2019
Efficient CO2 Adsorption on Nitrogen-Doped Porous Carbons Derived from d-Glucose journal May 2018
Human Consumption of Microplastics journal May 2019
Plastic leachates impair growth and oxygen production in Prochlorococcus, the ocean’s most abundant photosynthetic bacteria journal May 2019
Reducing the Cost of CO 2 Capture from Flue Gases Using Aqueous Chemical Absorption journal November 2013
Chemically activated nanoporous carbon adsorbents from waste plastic for CO2 capture: Breakthrough adsorption study journal July 2019
New synthetic routes towards MOF production at scale journal January 2017
Porous materials for carbon dioxide separations journal July 2021
Thermal decomposition products of polyethylene journal February 1968
Asphalt-Derived High Surface Area Activated Porous Carbons for Carbon Dioxide Capture journal January 2015
Stabilization Wedges: Solving the Climate Problem for the Next 50 Years with Current Technologies journal August 2004
Polyacrylonitrile Nanoparticle-Derived Hierarchical Structure for CO2Capture journal February 2018
Amine Scrubbing for CO2 Capture journal September 2009
Insight into the thermal decomposition of kaolinite intercalated with potassium acetate: an evolved gas analysis journal July 2014
Room-Temperature Ionic Liquid−Amine Solutions: Tunable Solvents for Efficient and Reversible Capture of CO 2 journal November 2008
Preparation and carbon dioxide uptake capacity of N-doped porous carbon materials derived from direct carbonization of zeolitic imidazolate framework journal November 2014

Figures / Tables (5)