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Energy transition events roundup, 3 Houston cos. make it to global competition finals, and more things to know

Houston energy transition folks — here's what to know to start your week. Photo via Getty Images

Editor's note: Dive headfirst into the new week with three quick things to catch up on in Houston's energy transition: a really big deal from last week, three startups make it to the finals of an Elon Musk-backed competition, and five events not to miss.

Companies to watch: 

Twenty promising climatetech companies were selected to advance to the final stage of a global competition backed by Elon Musk's foundation — and three of the finalists hail from Houston.

Vaulted Deep, Mati Carbon, and Climate Robotics secured finalists spots in XPRIZE's four-year global competition is designed to combat climate change with innovative solutions. XPRIZE Carbon Removal will offer $100 million to innovators who are creating solutions that removes carbon dioxide directly from the atmosphere or the oceans, and then sequester it sustainably.

The finalists — categorized into four sections: air, rocks, oceans, and land — were selected based upon their performance in three key areas: operations, sustainability, and cost. Click here to read more.

Events not to miss

Put these Houston-area energy-related events on your calendar.

  • 2nd Annual Geothermal Transition Summit for North America will take place May 21 and 22 at The Hilton Greenway Plaza. Engage in discussions on early-project development, industry policies, the synergy with the oil and gas industry, methods to enhance commerciality, and explore case studies from ground-breaking projects.Register now.
  • The Energy Drone & Robotics Summit is coming to Houston June 10 to 12. Join for the ultimate event in the world for UAVs, Robotics & Data/AI, 3D Reality Capture, Geospatial and Digital Twins focused on the business and technology in energy & industrial operations, inspections, maintenance, surveying & mapping. Register now.
  • Argus Clean Ammonia North America Conference will take place on June 12 to 14 at the Hyatt Regency Houston. Over the three days of the conference, explore the big questions many producers are facing around where demand is coming from, expect to hear perspectives from key domestic consumers as well as international demand centres for clean ammonia. Register now.
  • Join the over 150 senior energy and utilities leaders from June 17 to 18 in Houston for AI in Energy to unlock the potential of AI within your enterprise and delve into key areas for its development.Register now. 
  • Energy Underground (June) is a group of professionals in the Greater Houston area that are accelerating the Energy Transition that connect monthly at The Cannon - West Houston. Register now.

Big deal: Equinor bets on lithium

Equinor, which has its U.S. headquarters in Houston, has entered into a deal to take a 45-percent share in two lithium project companies in Southwest Arkansas and East Texas. The agreement is with Vancouver, Canada-based Standard Lithium Ltd. to make the acquisition. Standard Lithium retaining operatorship, while Equinor will support through its core competencies, like subsurface and project execution capabilities.

Standard Lithium retains the other 55 percent of the projects. Per the deal, will pay $30 million in past costs net to the acquired interest. The company also agreed to carry Standard Lithium's capex of $33 million "to progress the assets towards a possible final investment decision," per the release. Additionally, Equinor will make milestone payments of up to $70 million in aggregate to Standard Lithium should a final investment decision be taken. Click here to read more.

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A View From HETI

Ahmad Elgazzar, Haotian Wang and Shaoyun Hao were members of a Rice University team that recently published findings on how acid bubbling can improve CO2 reduction systems. Photo courtesy Rice.

In a new study published in the journal Science, a team of Rice University researchers shared findings on how acid bubbles can improve the stability of electrochemical devices that convert carbon dioxide into useful fuels and chemicals.

The team led by Rice associate professor Hoatian Wang addressed an issue in the performance and stability of CO2 reduction systems. The gas flow channels in the systems often clog due to salt buildup, reducing efficiency and causing the devices to fail prematurely after about 80 hours of operation.

“Salt precipitation blocks CO2 transport and floods the gas diffusion electrode, which leads to performance failure,” Wang said in a news release. “This typically happens within a few hundred hours, which is far from commercial viability.”

By using an acid-humidified CO2 technique, the team was able to extend the operational life of a CO2 reduction system more than 50-fold, demonstrating more than 4,500 hours of stable operation in a scaled-up reactor.

The Rice team made a simple swap with a significant impact. Instead of using water to humidify the CO2 gas input into the reactor, the team bubbled the gas through an acid solution such as hydrochloric, formic or acetic acid. This process made more soluble salt formations that did not crystallize or block the channels.

The process has major implications for an emerging green technology known as electrochemical CO2 reduction, or CO2RR, that transforms climate-warming CO2 into products like carbon monoxide, ethylene, or alcohols. The products can be further refined into fuels or feedstocks.

“Using the traditional method of water-humidified CO2 could lead to salt formation in the cathode gas flow channels,” Shaoyun Hao, postdoctoral research associate in chemical and biomolecular engineering at Rice and co-first author, explained in the news release. “We hypothesized — and confirmed — that acid vapor could dissolve the salt and convert the low solubility KHCO3 into salt with higher solubility, thus shifting the solubility balance just enough to avoid clogging without affecting catalyst performance.”

The Rice team believes the work can lead to more scalable CO2 electrolyzers, which is vital if the technology is to be deployed at industrial scales as part of carbon capture and utilization strategies. Since the approach itself is relatively simple, it could lead to a more cost-effective and efficient solution. It also worked well with multiple catalyst types, including zinc oxide, copper oxide and bismuth oxide, which are allo used to target different CO2RR products.

“Our method addresses a long-standing obstacle with a low-cost, easily implementable solution,” Ahmad Elgazzar, co-first author and graduate student in chemical and biomolecular engineering at Rice, added in the release. “It’s a step toward making carbon utilization technologies more commercially viable and more sustainable.”

A team led by Wang and in collaboration with researchers from the University of Houston also shared findings on salt precipitation buildup and CO2RR in a recent edition of the journal Nature Energy. Read more here.

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