teamwork

Houston-based sustainability company partners with Toshiba on carbon capture projects

Lummus Technology and Toshiba Energy Systems and Solutions Corp. announced a collaboration agreement that will have both companies pursuing carbon capture projects. Photo courtesy of Toshiba

Two global companies have announced a collaborative effort toward pursuing carbon capture projects.

Toshiba’s subsidiary Toshiba Energy Systems will provide its advanced amine-based solvents, which are specifically tailored for post-combustion carbon capture, as well as its “system design guidelines” aimed for Toshiba’s solvents. Houston-based Lummus Technology will provide its post-combustion carbon capture technology.

Lummus’ access to Toshiba’s advanced amine-based post-combustion carbon capture solvents and technology will be vital for the project. Toshiba’s amine-based post-combustion carbon has been used in commercial and demonstration plants in Japan, and have allowed capturing of over 600 tons per day of CO2. With this access, Lummus can integrate its technology into project designs, and deliver “operational excellence and a competitive cost structure for customers,” according to the company.

Lummus can offer clients an OPEX-competitive solution by incorporating Toshiba’s advanced solvents that will be characterized by reduced amine emissions, lower specific energy consumption per ton of CO2 absorbed, and higher solvent stability against degradation.

“We are delighted to collaborate with Lummus to introduce our advanced amine-based solvent and CO2 capture solution to a broader audience,” Shinya Fujitsuka, senior vice president of Toshiba Energy Systems and Solutions Corp., says in a news release. “Addressing the urgent need for decarbonization is paramount, and I have every confidence that our partnership with Lummus will enable us to make meaningful contributions towards achieving this goal.”

Both companies have been active in these innovations for years. Lummus has been a leader in post-combustion carbon capture technology since the 1990s by using latest generation solvent technology that provides the full design involving an absorber and solvent regeneration systems, which can be applied to complex combustion flue gas streams. Since 2007, Toshiba has been considered an industry leader in post-combustion amine-based solvent CO2 capture technology.

“I am excited about our partnership with Toshiba, which expands Lummus’ range of low carbon solutions and aligns with our commitment to lowering emissions for the downstream energy industry,” Leon de Bruyn, president and CEO of Lummus Technology, says in the release. “Combining Lummus’ post-combustion carbon capture technology with Toshiba’s highly competitive solvents and technology gives our customers a strong option for CAPEX and OPEX solutions as they advance their carbon capture investments.”

Lummus has recently secured other partnerships with Dongyang Environment Group to roll out Lummus' advanced plastics recycling technology in Seosan, Chungcheongnam-do, South Korea, and will be operated by Dongyang Environment's subsidiary, Seohae Green Chemical. Lummus also paired with Citroniq Chemicals to build North American plants that produce green polypropylene.

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A View From HETI

Amperon, Hertha Metals and Vaulted Deep were named to this year's Global Cleantech 100 list. Photo via Getty Images

Three Houston-area companies—Amperon, Hertha Metals and Vaulted Deep—appear on this year’s Global Cleantech 100 list.

The unranked list, generated by market intelligence and advisory firm Cleantech Group, identifies the 100 privately held companies around the world that are most likely to make a significant impact in the cleantech market over the next five to 10 years.

For the 2026 list, Cleantech Group received more than 24,000 Global Cleantech 100 nominations from nearly 60 countries. Cleantech Group scored those companies and narrowed the contenders to 264. An expert panel reviewed those nominees, and the list was whittled down to the 100 winners.

Here’s a rundown of the three Houston-area honorees:

Amperon

Founded in 2018 by Sean Kelly and Abe Stanway, Houston-based Amperon offers an AI-enabled energy forecasting and analytics platform designed to help stabilize electric grids. Amperon received undisclosed amounts of venture capital from National Grid Partners and Tokyo Gas Co. Ltd. last year and announced a recent investment from Samsung Ventures earlier this month.

Hertha Metals

Founded in 2022 by Laureen Meroueh, Conroe-based Hertha Metals provides a single-step process for producing sustainable steel. Last year, the company emerged from stealth mode and raised more than $17 million in venture capital.

Vaulted Deep

Vaulted Deep’s technology injects excess organic waste underground to remove carbon dioxide from the atmosphere. Julia Reichelstein and Omar Abou-Sayed founded the Houston-based company in 2023. Last year, the startup raised $32.3 million in venture capital. Also in 2025, Vaulted Deep signed a 12-year deal with software giant Microsoft to remove up to 4.9 million metric tons of carbon dioxide from the environment.

Vaulted Deep also made the list last year, along with Houston-based Syzygy Plasmonics and Fervo Energy. Fervo was also named the 2025 North American Company of the Year by Cleantech Group.

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