Houston researchers develop strong biomaterial that could replace plastic

plastic problem

A team led by M.A.S.R. Saadi and Muhammad Maksud Rahman has developed a biomaterial that they hope could be used for the “next disposable water bottle." Photo courtesy Rice University.

Collaborators from two Houston universities are leading the way in engineering a biomaterial into a scalable, multifunctional material that could potentially replace plastic.

The research was led by Muhammad Maksud Rahman, an assistant professor of mechanical and aerospace engineering at the University of Houston and an adjunct assistant professor of materials science and nanoengineering at Rice University. The team shared its findings in a study in the journal Nature Communications earlier this month. M.A.S.R. Saadi, a doctoral student in material science and nanoengineering at Rice, served as the first author.

The study introduced a biosynthesis technique that aligns bacterial cellulose fibers in real-time, which resulted in robust biopolymer sheets with “exceptional mechanical properties,” according to the researchers.

Biomaterials typically have weaker mechanical properties than their synthetic counterparts. However, the team was able to develop sheets of material with similar strengths to some metals and glasses. And still, the material was foldable and fully biodegradable.

To achieve this, the team developed a rotational bioreactor and utilized fluid motion to guide the bacteria fibers into a consistent alignment, rather than allowing them to align randomly, as they would in nature.

The process also allowed the team to easily integrate nanoscale additives—like graphene, carbon nanotubes and boron nitride—making the sheets stronger and improving the thermal properties.

“This dynamic biosynthesis approach enables the creation of stronger materials with greater functionality,” Saadi said in a release. “The method allows for the easy integration of various nanoscale additives directly into the bacterial cellulose, making it possible to customize material properties for specific applications.”

Ultimately, the scientists at UH and Rice hope this discovery could be used for the “next disposable water bottle,” which would be made by biodegradable biopolymers in bacterial cellulose, an abundant resource on Earth.

Additionally, the team sees applications for the materials in the packaging, breathable textiles, electronics, food and energy sectors.

“We envision these strong, multifunctional and eco-friendly bacterial cellulose sheets becoming ubiquitous, replacing plastics in various industries and helping mitigate environmental damage,” Rahman said the release.

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The project would nearly eliminate the emissions associated with power and steam generation at the Dow plant in Seadrift, Texas. Getty Images

Dow aims to power Texas manufacturing complex with next-gen nuclear reactors

Clean Energy

Dow, a major producer of chemicals and plastics, wants to use next-generation nuclear reactors for clean power and steam at a Texas manufacturing complex instead of natural gas.

Dow's subsidiary, Long Mott Energy, applied Monday to the U.S. Nuclear Regulatory Commission for a construction permit. It said the project with X-energy, an advanced nuclear reactor and fuel company, would nearly eliminate the emissions associated with power and steam generation at its plant in Seadrift, Texas, avoiding roughly 500,000 metric tons of planet-warming greenhouse gas emissions annually.

If built and operated as planned, it would be the first U.S. commercial advanced nuclear power plant for an industrial site, according to the NRC.

For many, nuclear power is emerging as an answer to meet a soaring demand for electricity nationwide, driven by the expansion of data centers and artificial intelligence, manufacturing and electrification, and to stave off the worst effects of a warming planet. However, there are safety and security concerns, the Union of Concerned Scientists cautions. The question of how to store hazardous nuclear waste in the U.S. is unresolved, too.

Dow wants four of X-energy's advanced small modular reactors, the Xe-100. Combined, those could supply up to 320 megawatts of electricity or 800 megawatts of thermal power. X-energy CEO J. Clay Sell said the project would demonstrate how new nuclear technology can meet the massive growth in electricity demand.

The Seadrift manufacturing complex, at about 4,700 acres, has eight production plants owned by Dow and one owned by Braskem. There, Dow makes plastics for a variety of uses including food and beverage packaging and wire and cable insulation, as well as glycols for antifreeze, polyester fabrics and bottles, and oxide derivatives for health and beauty products.

Edward Stones, the business vice president of energy and climate at Dow, said submitting the permit application is an important next step in expanding access to safe, clean, reliable, cost-competitive nuclear energy in the United States. The project is supported by the Department of Energy’s Advanced Reactor Demonstration Program.

The NRC expects the review to take three years or less. If a permit is issued, construction could begin at the end of this decade, so the reactors would be ready early in the 2030s, as the natural gas-fired equipment is retired.

A total of four applicants have asked the NRC for construction permits for advanced nuclear reactors. The NRC issued a permit to Abilene Christian University for a research reactor and to Kairos Power for one reactor and two reactor test versions of that company's design. It's reviewing an application by Bill Gates and his energy company, TerraPower, to build an advanced reactor in Wyoming.

X-energy is also collaborating with Amazon to bring more than 5 gigawatts of new nuclear power projects online across the United States by 2039, beginning in Washington state. Amazon and other tech giants have committed to using renewable energy to meet the surging demand from data centers and artificial intelligence and address climate change.

Lummus and Citroniq say their first plant, set for completion in 2027, will produce 400,000 metric tons of green polypropylene each year. Photo via lummustechnology.com

Houston companies partner on sustainable plastics alternative

green polypropylene

Two Houston companies, Lummus Technology and Citroniq Chemicals, have paired up to build North American plants that produce green polypropylene.

Polypropylene is a thermoplastic used to manufacture items such as plastic packaging, plastic parts, medical supplies, textiles, and fibers. Green polypropylene is made from biomass.

Lummus and Citroniq say their first plant, set for completion in 2027, will produce 400,000 metric tons of green polypropylene each year. The plant will be at an undisclosed location in the Midwest.

In April, Lummus and Citroniq signed a letter of intent to develop Citroniq green polypropylene projects in North America using Lummus’ Verdenesuite of polypropylene technology. Their newly announced licensing and engineering agreements apply to the first of four planned facilities.

“This agreement demonstrates the progress we continue to make with Citroniq in establishing the first world-scale sustainable bio-polypropylene production process in North America,” Romain Lemoine, chief business officer for polymers and petrochemicals at Lummus, says in a news release.

“Combining Lummus’ leadership in polypropylene licensing with Citroniq’s carbon-negative production capabilities will help us meet the growing demand for bio-polypropylene and accelerate the decarbonization of the downstream energy industry,” Lemoine adds.

Citroniq says it’s investing more than $5 billion to expand its E2O process. The process produces carbon-negative plastics and hydrogen-and-carbon compounds called olefins from fully sustainable feedstocks. This eliminates the use of convention fossil-fuel hydrocarbons, Citroniq says.

Mel Badheka, principal and co-founder of Citroniq, says his company aims “to meet the market’s growing need for sustainable carbon-negative polypropylene at a competitive price.”

The global market for green polypropylene was valued at $123.5 billion in 2022, according to Grand View Research. Growth in the sector is being driven in part by the construction industry, the firm says.

Asking ChatGPT what all was made from petroleum produced surprising results - the answer: everything. Photo by Sanket Mishra/Unsplash

Energy truly IS everywhere according to ChatGPT

EVERYDAY ENERGY

I sat down to have a conversation with ChatGPT from OpenAI about energy by-products; specifically, everyday items we use that contain some form of petrochemicals. My first prompt was rather broad, so I wasn’t surprised to get back a rather broad answer highlighting product categories instead of specific examples. Plastics, synthetic fibers, cleaning products, personal care products, medicines, paints & coatings, and adhesives were all succinctly summarized, but I wanted to dive deeper.

Given that AI has an almost limitless reach, I asked for a comprehensive list of all the products we use in everyday life that are made from petrochemicals. Turns out, ChatGPT has some healthy boundaries, so it pushed back, only offering a slightly more detailed list of the categories produced from the first prompt.

Not to be deterred, I asked for additional examples. I didn’t want to continue getting spoon-fed 10 items at a time, so I asked for 200. Less than comprehensive, more than the crumbs I was getting.

In entertaining fashion, ChatGPT told me compiling a list of 200 items might be challenging, but that it could offer up 100. The brazen negotiation made me smile.

I complimented the list and nudged a bit, encouraging ChatGPT it could come up with another 100 items if it tried. Much like a teenager wishes to stave off further questioning from a nosy parent, ChatGPT proffered up a second response of 100 items–almost half of which were simply things before which it added the qualifier “synthetic.” Salty.

As my intention is not to bore you, but rather enhance the knowledge of our readers by understanding how pervasive petrochemical products are in our everyday life, I settled on a more direct inquiry with a capped demand prompt: “What would you say are the 10 most surprising things in common everyday use that contain petrochemical products?”

Most of the answers featured wax-based products, like lotions, crayons, and lipstick–not necessarily earth-shattering realizations given my familiarity with cosmetics as petroleum by-products. I was pleasantly surprised to learn that chewing gum, with its synthetic rubber base enabling theoretically endless chewing, is derived from petroleum. I was also surprised to learn that many artificial sweeteners, like saccharin and aspartame, are made from petrochemicals. Huh.

There was one item on the list, however, that helped me see how truly pervasive the energy industry is, and not just for petrochemicals. Tucked in nonchalantly at #6 was Deodorant. My brain jumped immediately to the waxy base of a solid sweat deterrent, but my eyes got a curveball. ChatGPT writes, “Many deodorants contain aluminum, which is often derived from bauxite, a mineral that is usually mined from the earth using petroleum-powered machinery.” Now that was an answer I wasn’t expecting.

While my initial inference stood true – the smooth glide of a buttery solid antiperspirant is without a doubt derived from petrochemicals (not to mention the plastic packaging surrounding it), I wasn’t expecting ChatGPT to rope in the oft petroleum-fueled tools used to make said product. If that’s true, then nearly every item on the planet is derived from petroleum. Or at the very least, some source of energy. Regardless of whether the machinery used runs on gasoline, electricity, or wind power, literally almost everything that is produced on this earth is related to the energy industry.

Even if it’s hand-made, it’s technically still energy-adjacent, assuming we all bathe regularly with soap, yet another on the list of commonly used items derived from petroleum by-products. It’s certainly directly powering some manual activities, for those busting stress and bad breath with gum, or drinking a diet soda to power through. No pun intended.

I share this amusing tale simply to clarify the ubiquitous nature of energy in all parts of the modern world. As we look toward the #futureofenergy, we must be cognizant of its universal reach. It’s not necessarily realistic to switch from one source of energy to another overnight, but we do have a responsibility to seek cleaner, healthier, more efficient sources of energy while sustaining the life to which we have all grown accustomed.

Much like ChatGPT thought she couldn’t come up with 200 items derived from petroleum products, many think Houston will be unable to drive the Energy Transition, given our extensive petroleum focus. But like so many fellow Houstonians before us, we love a good challenge.

Just keep prompting us, and we’ll eventually unlock infinite potential for the #futureofenergy. It’s a limitless time to be in Houston, absorbing wisdom the city so willingly wants to share with the growing ecosystem of innovators. Just ask the growing number of almost 5,000 Energy-related firms in Houston. We’re just getting started.

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Lindsey Ferrell is a contributing writer to EnergyCapitalHTX and founder of Guerrella & Co.

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ExxonMobil pauses plans for $7B hydrogen plant in Baytown

project on pause

As anticipated, Spring-based oil and gas giant ExxonMobil has paused plans to build a low-hydrogen plant in Baytown, Chairman and CEO Darren Woods told Reuters.

“The suspension of the project, which had already experienced delays, reflects a wider slowdown in efforts by traditional oil and gas firms to transition to cleaner energy sources as many of the initiatives struggle to turn a profit,” Reuters reported.

Woods signaled during ExxonMobil’s second-quarter earnings call that the company was weighing whether it would move forward with the proposed $7 billion plant.

The Biden-era Inflation Reduction Act established a 10-year incentive, the 45V tax credit, for production of clean hydrogen. But under President Trump’s One Big Beautiful Bill Act, the period for beginning construction of low-carbon hydrogen projects that qualify for the tax credit has been compressed. The Inflation Reduction Act called for construction to begin by 2033. The Big Beautiful Bill changed the construction start time to early 2028.

“While our project can meet this timeline, we’re concerned about the development of a broader market, which is critical to transition from government incentives,” Woods said during the earnings call.

Woods had said ExxonMobil was figuring out whether a combination of the 45Q tax credit for carbon capture projects and the revised 45V tax credit would enable a broader market for low-carbon hydrogen.

“If we can’t see an eventual path to a market-driven business, we won’t move forward with the [Baytown] project,” Woods told Wall Street analysts.

“We knew that helping to establish a brand-new product and a brand-new market initially driven by government policy would not be easy or advance in a straight line,” he added.

ExxonMobil announced in 2022 that it would build the low-carbon hydrogen plant at its refining and petrochemical complex in Baytown. The company had indicated the plant would start initial production in 2027.

ExxonMobil had said the Baytown plant would produce up to 1 billion cubic feet of hydrogen per day made from natural gas, and capture and store more than 98 percent of the associated carbon dioxide. The plant would have been capable of storing as much as 10 million metric tons of CO2 per year.

Greentown and partners name 10 startups to carbontech accelerator

new cohort

The Carbon to Value Initiative (C2V Initiative)—a collaboration between Greentown Labs, NYU Tandon School of Engineering's Urban Future Lab and Fraunhofer USA—has announced 10 startup participants to join the fifth cohort of its carbontech accelerator.

The six-month accelerator aims to help cleantech startups advance their commercialization efforts through access to the C2V Initiative’s Carbontech Leadership Council (CLC). The invitation-only council consists of corporate and nonprofit leaders from organizations like Shell, TotalEnergies, XPRIZE, L’Oréal and others who “foster commercialization opportunities and identify avenues for technology validation, testing, and demonstration,” according to a release from Greentown

“The No. 1 reason startups engage with Greentown is to find customers, grow their businesses, and accelerate impact—and the Carbon to Value Initiative delivers exactly that,” Georgina Campbell Flatter, CEO of Greentown, said in a news release. “It’s a powerful example of how meaningful engagement between entrepreneurs and industry turns innovation into commercial traction.”

The C2V Initiative received more than 100 applications from 33 countries, representing a variety of carbontech innovations. The 10 startups chosen for the 2025 fifth cohort include:

Cambridge, Massachusetts-based Sora Fuel, which integrates direct-air capture with direct conversion of the captured carbon into syngas for production of sustainable aviation fuel
Brooklyn-based Arbon, which develops a humidity-swing carbon-capture solution by capturing CO₂ from the air or point-source without heat or pressure
New York-based Cella Mineral Storage, which works to develop subsurface mineralization technology with integrated software, enabling new ways to sequester CO2 underground
Germany-based ICODOS, which helps transform emissions into value through a point-source carbon capture and methanol synthesis process in a single, modularized system
Vancouver-based Lite-1, which uses advanced biomanufacturing processes to produce circular colourants for use in textiles, cosmetics and food
London-based Mission Zero Technologies, which has developed and deployed an electrified, direct-air carbon capture solution that employs both liquid-adsorption and electrochemical technologies
Kenya-based Octavia Carbon, which develops a solid-adsorption-based, direct-air carbon capture solution that utilizes geothermal heat
California-based Rushnu, which combines point-source carbon capture with chemical production, turning salt and CO2 into chlorine-based chemicals and minerals
Brooklyn-based Turnover Labs, which develops modular electrolyzers that transform raw, industrial CO2 emissions into chemical building blocks, without capture or purification
Ontario-based Universal Matter, which develops a Flash Joule Heating process that converts carbon waste such as end-of-life plastics, tires or industrial waste into graphene

The C2V Initiative is based on Greentown Go, Greentown’s open-innovation program. The C2V Initiative has supported 35 startups that have raised over $600 million in follow-on funding.

Read about the 2024 cohort here.

CenterPoint gets go-ahead for $2.9B upgrade of Houston grid

grid resiliency

Texas utility regulators have given the green light for Houston-based CenterPoint Energy to spend $2.9 billion on strengthening its Houston-area electric grid to better withstand extreme weather.

The cost of the plan is nearly $3 billion below what CenterPoint initially proposed to the Public Utility Commission of Texas.

In early 2025, CenterPoint unveiled a $5.75 billion plan to upgrade its Houston-area power system from 2026 through 2028. But the price tag dropped to $2.9 billion as part of a legal settlement between CenterPoint and cities in the utility’s service area.

Sometime after the first quarter of next year, CenterPoint customers in the Houston area will pay an extra $1 a month for the next three years to cover costs of the resiliency plan. CenterPoint serves 2.9 million customers in a 12-county territory anchored by Houston.

CenterPoint says the plan is part of its “commitment to building the most resilient coastal grid in the country.”

A key to improving CenterPoint’s local grid will be stepping up management of high-risk vegetation (namely trees), which ranks as the leading cause of power outages in the Houston area. CenterPoint says it will “go above and beyond standard vegetation management by implementing an industry-leading three-year trim cycle,” clearing vegetation from thousands of miles of power lines.

The utility company says its plan aims to prevent Houston-area power outages in case of hurricanes, floods, extreme temperatures, tornadoes, wildfires, winter storms, and other extreme weather events.

CenterPoint says the plan will:

Improve systemwide resilience by 30 percent
Expand the grid’s power-generating capacity. The company expects power demand in the Houston area to grow 2 percent per year for the foreseeable future.
Save about $50 million per year on storm cleanup costs
Avoid outages for more than 500,000 customers in the event of a disaster like last year’s Hurricane Beryl
Provide 130,000 stronger, more storm-resilient utility poles
Put more than 50 percent of the power system underground
Rebuild or upgrade more than 2,200 transmission towers
Modernize 34,500 spans of underground cables

In the Energy Capital of the World, residents “expect and deserve an electric system that is safe, reliable, cost-effective, and resilient when they need it most. We’re determined to deliver just that,” Jason Wells, president and CEO of CenterPoint, said in January.

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