LDPE packaging recyclability 10-02-2023

LDPE packaging recyclability

-Collaboration to increase low density polyethylene packaging recyclability sees success in Deinking trials

Siegwerk, one of the leading global providers of printing inks and coatings for packaging applications and labels, has partnered with German startup Wildplastic and the Hamburg University of Technology (TU-Hamburg) aiming to increase the recyclability of plastic waste. One way to achieve this is by successfully deinking the collected waste before entering the recycling extrusion process. The partners conducted initial trials at the end of 2022, with very successful results.

Of the billions of tons of plastic that have been produced worldwide, only about 9% has been recycled, and about 12% ends up in landfills. The rest can end up leaking into the environment, polluting oceans and rivers and breaking down into microplastics that are hazardous to human health. LDPE packaging recyclability

There is a clear and urgent need to improve recycling processes and to ensure that more packaging enters the recycling stream. Deinking packaging prior to regranulation helps to prevent the packaging inks from contaminating the materials to be recycled, and ensures that the packaging stays in the recycling stream.

The partners to the initiative recognize that it is only through cross-industry collaboration that progress can be made. Wildplastic is a German startup founded in 2019 aiming to clean the environment from plastic waste. In cooperation with communities of collectors, the start-up works globally to collect “wild” plastic from beaches, landfills, and illegal dumpsites. In spring 2019, Wildplastic started selling the first trash bag that is 100% made of recycled plastic. Currently, their focus is on sourcing Low Density Polyethylene (LDPE) such as bubble wrap or certain food packaging. LDPE packaging recyclability

LDPE cannot yet be widely recycled, so the market collection incentive for it is still limited. Wildplastic wants to change this by creating a demand for this material and showcasing the potential of post-consumer LDPE recycling. After collection, the plastic is transported to a recycling partner who washes, melts and processes it into granules. These recyclate granules are then sent to a production partner and used as a substitute for virgin LDPE material. This material is then used to create trash bags and mail bags. A broader scope of applications may be possible if the materials could be successfully deinked first.

In 2021, Wildplastic and the Institute of Circular Resource Engineering and Management (CREM) of TU-Hamburg started a cooperative research and development  project, financed by the Investment and Development Bank of Hamburg (IFB) to study the feasibility of improving the quality of LDPE-recyclates from post-consumer sources. Evonik is supporting this project as a cooperative partner. LDPE packaging recyclability

“We started to conduct research on deinking of post-consumer plastic waste with Wildplastic  about one year ago. As a technical university, it is important to carry out meaningful research relevant to the real-world problem. From our project, we have learned that a successful circular economy only works by motivating all the stakeholders involved. Siegwerk as the producer of printing ink, can play an important role in this context since it brings the producer’s perspective to solve the problem in the beginning,” said Jinyang Guo from the Institute of Circular Resource Engineering and Management (CREM) from TU- Hamburg during a kick-off meeting between the partners in November 2022.

Siegwerk is supporting Wildplastic in this initiative by providing the deinking chemistry and knowledge to enable the creation of clean recyclates. In order for successful deinking to occur, a precise combination of the right ink chemistry, the right deinking detergent and the right process needs to be applied.

Inks on packaging can often be a hinderance to recycling, as the inks degrade during the recycling process and can contaminate the recyclates, leading to unpleasant odors or unsightly colors. Even if the inks are not totally removed, the opportunities for recycling are increased exponentially. LDPE packaging recyclability

“It is a pleasure to work with our partners from Wildplastic and from the University of Hamburg on this topic. We have a strong can-do attitude in common. The scientific perspective and the conscientiousness contributed by Jinyang helps us to maintain a fact-based and objective view. Not only in the design of experiments but also in the interpretation of results. Wildplastic has the ambition to benefit from deinking in their recycling activities in just a few months and brings in an industrial perspective,” said Ingo Fehr, Senior Project Manager at Siegwerk. LDPE packaging recyclability

“We have started this collaboration with Jinyang and the University about one year ago following our deep interest to find a solution for specific washing needs for highly challenging post-consumer plastic film materials in a small-scale batch operation. From day one we have worked together in a very open and solution-orientated way and with shared passion. It´s all about getting the right people together, therefore we are extremely happy to share our results and to extend our collaboration with the team at Siegwerk,” said Wildplastic co-founder Dieter Gottschalk.


LDPE packaging recyclability

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LyondellBasell PE technology 10-02-2023

LyondellBasell PE technology

-PetroChina again selects differentiated LyondellBasell Polyethylene (PE) technology

LyondellBasell  announced today that PetroChina Jilin Petrochemical Company will again license LyondellBasell’s polyethylene technology at their facility located in Jilin City, Jilin Province, P.R. of China. The newly licensed technology will comprise of LyondellBasell’s leading high-pressure Lupotech process technology which will be used for both a 100 kiloton per year (KTA) Autoclave and a 300 KTA Tubular line. Both production trains will produce mainly low-density polyethylene (LDPE) with ethylene vinyl acetate copolymers (EVA). LyondellBasell PE technology

Furthermore, an additional 400 KTA Hostalen “Advanced Cascade Process” (ACP) line for the production of high density polyethylene (HDPE) will be built at the same time.

“We are pleased to be able to license additional LyondellBasell polyethylene technology in this project as PetroChina Jilin Petrochemical Company is an important existing licensee with whom we have had a long and successful history,” said Neil Nadalin, Director Global Licensing and Services at LyondellBasell. Nadalin added: “The newly added lines will include our state-of-the-art high-pressure Lupotech technology as well as our multi-modal HDPE technology enabling PetroChina to produce differentiated polyethylene resins”.

“We are very satisfied with the first Hostalen unit running on our site in China and we are excited to add a new multi-modal HDPE line using the Hostalen ACP technology,  stated Mr. Han Zhiqun, Chief Engineer of PetroChina Jilin. LyondellBasell PE technology

“Furthermore, we are eager to expand our future product portfolio into differentiated low-density polyethylene resins by applying the LyondellBasell Lupotech Autoclave and Tubular processes. This newly added capacity will help us to foster our ambitions in supporting the global energy transition in being able to best serve the solar panel lamination and encapsulant market.”

Decades of experience in high-pressure application design makes the LyondellBasell Lupotech process the preferred technology for EVA/LDPE plant operators. High reliability, unmatched conversion rates and effective process heat integration are key attributes of the Lupotech process, designed to ensure this technology’s on-going energy efficiency. More than 15,000 KTA of LyondellBasell high pressure LDPE technology has been licensed by LyondellBasell in over 80 lines around the world. LyondellBasell PE technology

The Hostalen ACP process technology manufactures high performance, multi-modal HDPE resins with an industry-leading stiffness/toughness balance, impact resistance, high stress cracking resistance and process advantages are used in pressure pipe, film and blow molding applications. The PetroChina HDPE plants will commence operations using Avant Z 501 and Avant Z509-1 catalysts to produce a full range of multi-modal HDPE products.

New licensees take advantage of LyondellBasell’s in-house expertise of continuous production improvement, product development according to the latest environmental regulations, and our know-how in high pressure design, by optionally joining our Technical Service program.LyondellBasell PE technology

In addition to the Hostalen ACP, Lupotech T and Lupotech A process technology, the LyondellBasell licensing portfolio of polyolefin processes and catalysts includes:

Spherizone – The breakthrough multi-zone circulating reactor provides a unique and innovative platform to manufacture polypropylene products with novel architecture and enhanced properties.

Spheripol – The leading polypropylene (PP) process technology with more than 33 million tons of licensed capacity. With globally recognized quality grades featuring leading monomer yield and investment costs to make it the technology of choice.

Avant – Advanced Ziegler-Natta, including non-phthalate, chromium and metallocene catalysts for entire range of polyolefin production. LyondellBasell PE technology

About LyondellBasell:

As a leader in the global chemical industry, LyondellBasell strives every day to be the safest, best operated and most valued company in our industry. The company’s products, materials and technologies are advancing sustainable solutions for food safety, access to clean water, healthcare and fuel efficiency in more than 100 international markets. LyondellBasell places high priority on diversity, equity and inclusion and is Advancing Good with an emphasis on our planet, the communities where we operate and our future workforce. LyondellBasell PE technology

The company takes great pride in its world-class technology and customer

focus. LyondellBasell has stepped up its circularity and climate ambitions and actions to address the global challenges of plastic waste and decarbonization. For more information, please visit www.lyondellbasell.com or follow @LyondellBasell on LinkedIn.


LyondellBasell PE technology

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