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By  Lynn L. Bergeson and Ligia Duarte Botelho, M.A.

On March 25, 2021, researchers from the University of Maryland Department (UMD) of Materials Science and Engineering (MSE) published, in Nature Sustainability, a study titled “A strong, biodegradable and recyclable lignocellulosic bioplastic.”  The study outlines UMD MSE’s new in situ lignin regeneration strategy that synthesizes a high-performance bioplastic from lignocellulosic resources such as wood.  According to the published article, renewable and biodegradable materials derived from biomass often exhibit mechanical performance and wet stability that are insufficient for practical applications.  Given these circumstances, the newly developed method for bioplastic production improves efficiency and reduces environmental impacts because it involves only green and recyclable chemicals.  The study can be accessed here, detailing the process in which porous matrices of natural wood are deconstructed to form the lignocellulosic bioplastic.


 

 

On December 28, 2016, the American Fuel & Petrochemical Manufacturers (AFPM) submitted a petition requesting that EPA waive the cellulosic biofuel volumetric requirements for the 2016 compliance year citing an inadequate domestic supply of the fuel.  Based on the amount of cellulosic fuel produced through November, AFPM estimated that between 173.8 and 190 million gallons will be produced in 2016, which is approximately 40 to 60 million gallons below the 230 million gallon target set by EPA in December 2015.  With a cellulosic waiver credit price of $1.33 for 2016, obligated parties would be required pay approximately $50 to $75 million to meet the cellulosic biofuel mandate.  The petition requests that a partial supplemental cellulosic biofuel waiver equal to the shortfall be granted to prevent am unjust penalty on obligated parties.  Since RFS compliance must be confirmed by March 30, 2017, the petition also urges EPA to defer the 2016 cellulosic biofuel waiver credit requirement until EPA can formally act on the petition.


 

On March 25, 2015, EPA announced the direct final rule, Regulation of Fuels and Fuel Additives: Cellulosic Waiver Credit Price and Minor Amendments to Renewable Fuel Standard Regulations, that would result in cellulosic waiver credit prices being posted on the EPA website rather than as a result of the rulemaking process. This would allow the credit prices to be announced as soon as the needed data for the wholesale price of gasoline is available, which would provide more certainty to the market. The credit prices are supposed to be updated annually according to the Clean Air Act (CAA) but delays in RFS have also delayed updating the credit prices. EPA announced that the price of the waivers will be $0.49 per credit for the 2014 compliance period and $0.64 per credit for the 2015 compliance period. This direct final rule also corrects an error created by an earlier rule where EPA moved standards for process heat produced from biogas and accidentally overwrote standards for giant reed and napier grass. This final rule will take effect 30 days after it is published in the Federal Register unless it receives any adverse comments.

 

 

EPA is accepting public comments through May 26, 2015, on two proposed information collection requests (ICR) published in the Federal Register on Tuesday, March 24, 2015. The proposed ICRs concern projected cellulosic biofuels volumes and gasoline containing greater than 10 volume percent ethanol up to 15 volume percent ethanol (E15). Comments received will assist EPA as the agency prepares to submit the final ICRs to the Office of Management and Budget (OMB) for its official approval and dissemination.

In the first proposed ICR on "Cellulosic Production Volume Projections and Efficient Producer Reporting," EPA is seeking to collect information from potential cellulosic biofuel producers to aid in determining the annual volume standards. In the second proposed ICR on "Recordkeeping and Reporting Related to E15 (Renewal)," EPA is seeking comment on recordkeeping and reporting items related to the legal use of E15 in commerce.

 

 

The Bioenergy Technologies Office within the U.S. Department of Energy (DOE) has issued a Funding Opportunity Announcement (FOA), "Landscape Design for Sustainable Bioenergy Systems."


DOE is looking for interdisciplinary projects that integrate landscape design approaches with cellulosic feedstock production within existing agricultural and forestry systems. Projects must maintain, or preferably enhance, environmental and socio-economic sustainability. The FOA includes funding up to $14 million.


This funding will help take the next steps for previous DOE-funded projects that demonstrated potential for increased sustainability through strategic placement of bioenergy feedstock production within a landscape. The FOA will engage landowners and multi-disciplinary stakeholders in the design of the landscape, field research on sustainability metrics, and assessing logistic systems needed to provide high quality cellulosic feedstocks to conversion facilities for bioenergy.
More information on the FOA is available on DOE's website.
 


 

On October 17, 2014, Abengoa opened -- and DOE Secretary Ernest Moniz dedicated -- the world's largest cellulosic biorefinery in Hugoton, Kansas. This second generation cellulosic ethanol plant will process 1,000 tons of biomass per day and utilize mainly corn stover, as well as wheat straw, milo stubble, and switch grass. This biorefinery will produce up to 25 million gallons of cellulosic ethanol every year. It benefited from a $132.4 million loan guarantee and a $97 million grant, both from DOE. More information about the plant and comments from the opening ceremony are available in a DOE press release, "Secretary Moniz Dedicates Innovative Commercial-Scale Cellulosic Biofuel Plant" and on the Biofuels Digest website.


 

On October 6, 2014, DuPont and Proctor & Gamble announced their joint plan to replace currently used corn-based ethanol with cellulosic ethanol in North American Tide® laundry detergent. According to DuPont's press release on the announcement, the cellulosic ethanol used in the detergent will come from DuPont's new biorefinery being constructed in Nevada, Iowa. A copy of the press release, with more information on the announcement, is available online.


 

On September 3, 2014, POET-DSM's Project LIBERTY in Emmetsburg, Iowa, celebrated its grand opening. This will be the first commercial-scale cellulosic ethanol plant to use corn waste as a feedstock, using biochemical conversion technologies (yeast and enzymes) to convert cellulosic biomass into transportation fuels. Project LIBERTY is the second of two DOE-funded cellulosic ethanol biorefineries to come on line within the past year. More information is available on the DOE Bioenergy Technologies Office (BETO) website. A documentary on the production of cellulosic ethanol at POET-DSM can be viewed online.


 

In an August 11, 2014, filing with the U.S. Securities and Exchange Commission, cellulosic biofuel company KiOR, Inc. (KiOR) reported that without any new financial commitments, the Company only has enough funding to operate through September 2014. This announcement is significant for the biofuels industry, as EPA had relied on KiOR's projected volumes of available cellulosic biofuels to make up a significant part of the 2013 cellulosic renewable volume obligations (RVO) under the federal RFS. In addition, biofuels and RFS supporters have cited KiOR as a success story for continued support for the advanced and cellulosic RVOs under the RFS.


 
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