Weeping and flooding phenomena set the vapor velocity in industrial distillation columns. Presented here are procedures for calculating flooding and weeping velocities in a four-pass sieve-tray column In industrial distillation, the term “weeping” is primarily used when the liquid in…
Meeting climate-change goals requires steep reductions in greenhouse-gas emissions from existing power plants and hard-to-abate industry operations. However, the energy required to release captured CO2 from sorbent material is a challenge for the economic viability of these efforts. Also, retrofitting…
Plant Watch Chevron upgrades Pasadena refinery to increase capacity and flexibility December 11, 2024 — Chevron Corp. (Houston; www.chevron.com) has completed a retrofit of its petroleum refinery in Pasadena, Texas, which is expected to increase product flexibility and expand the…
The industrial sector consumes more than 80% of basic and specialty chemicals. Worldwide, industrial activity saw a modest recovery in 2024. Global industrial production is expected to have increased by 1.3% by the end of 2024, with predictions of about…
Biogenic materials, including agricultural residue or other organic waste, hold a considerable amount of energy density in the form of carbon and hydrogen, but efficiently processing these solid materials to harvest energy can pose challenges. The Modular Conversion TechnologyTM (MCT)…
Dry reforming of methane (DRM), in which carbon dioxide and methane are combined to form synthesis gas (H2 and CO), is an attractive route to making syngas because it does not require consumption of water and does not produce CO2…
Toray Industries, Inc. (Tokyo) announced that the Ministry of Economy, Trade and Industry has selected the company’s project to build a gigawatt-class mass production system for electrolyte membranes used in water electrolyzer for the Green Transformation Supply Chain Development Support…
Mitsubishi Power Americas, through its subsidiary MHI Hydrogen Infrastructure (MHI H2I), announces the recent signing of a subrecipient agreement between the Pacific Northwest Hydrogen Association (PNWH2) and MHI H2I’s Boardman Hydrogen Hub project. The PNWH2 Hub, one of the country’s…
Altana AG (Wesel, Germany) has announced that its group company, Eckart, has entered into a joint venture (JV) agreement with India-based sustainable manufacturing firm Runaya. The joint venture is establishing a new facility in Orissa (India), to produce sustainable spherical…
The University of California (UC) system has awarded a $1.4 million grant to UC Riverside chemical and environmental engineering professor Haizhou Liu and a collaborative team from several UC campuses to combat water scarcity by developing strategies to clean and…