# Ed Dineen

> Ed Dineen is the Houston-based president and chief executive officer of TPC Group, which he joined in January 2016. A chemical engineer, he previously led LS9 and Siluria Technologies and held senior operating and business leadership roles at LyondellBasell. He also serves as a Cooper Union trustee and on the board of Syzygy Plasmonics.

- **Role:** President and Chief Executive Officer at TPC Group
- **Organizations:** TPC Group, Syzygy Plasmonics, Cooper Union, American Fuel & Petrochemical Manufacturers, LyondellBasell (former), LS9 (former), Siluria Technologies (former), ARCO Chemical Company (former)
- **Education:** Bachelor’s degree in chemical engineering, Cooper Union for the Advancement of Science and Art, Master’s degree in chemical engineering, Princeton University, Master’s degree in engineering management, Drexel University
- **Known for:** Previously led LyondellBasell’s $20 billion global chemicals division., Led Siluria during its development of industrial partnerships and 2015 La Porte demonstration-plant opening., Led TPC through completion of its December 2022 Chapter 11 reorganization.

## Career timeline

- **1976** — Graduating chemical engineering class at Cooper Union.
- **1998** — Joined Lyondell; subsequently led several chemical businesses and its global chemicals division.
- **2010-12** — Became president and CEO of LS9 after serving as LyondellBasell chief operating officer.
- **2011-10** — Participated in Climate One’s Drop In, Scale Up? discussion.
- **2013** — Became CEO of Siluria Technologies; remained on LS9’s board after CEO transition.
- **2015-04** — Siluria opened its OCM demonstration plant at Braskem’s La Porte site during his tenure.
- **2016-01** — Joined TPC Group as chairman, president and CEO.
- **2019-11** — Port Neches explosions occurred during his TPC tenure, halting butadiene production at the site.
- **2022-12** — TPC emerged from Chapter 11 reorganization.
- **2024-05** — TPC Group LLC pleaded guilty to a Clean Air Act violation related to Port Neches.
- **2026-06** — Elected Cooper Union trustee, with a term listed through 2030.

## Achievements

- Previously led LyondellBasell’s $20 billion global chemicals division.
- Led Siluria during its development of industrial partnerships and 2015 La Porte demonstration-plant opening.
- Led TPC through completion of its December 2022 Chapter 11 reorganization.
- Elected to Cooper Union’s board of trustees in June 2026.

## Latest updates

- **2026-06** — Cooper Union lists Dineen as a newly elected trustee with a term through 2030.
- **2025-02** — Announced broader responsibilities for commercial executive Adrian Jacobsen and CFO Dan Valenzuela as part of TPC succession changes.

## Links

- Website: https://www.tpcgrp.com/about/people-at-tpc/edward-j-dineen
- LinkedIn: https://www.linkedin.com/in/ed-dineen-6159b81a

---

Profile page: https://yespress.io/ed-dineen
Published by YesPress — https://yespress.io
Last updated: 2026-10-22