Hydrocarbon Processing Sensitivity analysis of a plug flow reactor A sensitivity analysis study evaluates uncertainties in a model’s output based on the changes in the input parameters of the model. Save energy and reduce CO<sub>2</sub> emissions with closed-loop optimization of utilities networks Oil and gas, petrochemical and chemical companies face the difficult challenge of maximizing profitability while achieving aggressive decarbonization objectives set for 2030 and beyond. CO<sub>2</sub> energy recycling approach in the petrochemical industries Many industrial processes can generate carbon dioxide from fossil fuels. Recently, these processes have contributed to an average annual release of more than 30 Btpy of carbon dioxide into the environment. Overview of decarbonization pathways for the oil and gas and petrochemical industries—Part 1 This two-part article will cover the seven pathways to decarbonizing the oil and gas and petrochemical industries. Business Trends: Insights from the <i>2020 Worldwide Fuels Refinery Performance Analysis</i> The author’s company recently completed its data analysis for the 2020 Worldwide Fuels Refinery Performance Analysis (Fuels Study). Circular Economy: Innovative recycling, driving circularity while decarbonizing the petrochemical industry Plastic pollution’s environmental challenges, as well as new government legislation, are having a significant impact on the plastics industry. Editorial Comment: Pathways towards a more sustainable HPI Among the dominant, far-reaching themes within the global refining and petrochemicals industries are the increase in biofeedstocks processing to produce biofuels and greener petrochemicals, the continued push towards clean fuels production, regulations and initiatives to adhere to net-zero emissions targets, and a surge in capital investments to build renewables and sustainable aviation fuels (SAF) plants. Air-cooled heat exchanger operation under emergency cooling service One of the challenges in the operation of air cooled heat exchangers (ACHEs) is to decide whether or not to operate under natural convection. Use straightforward troubleshooting and failure analysis to benefit the HPI To operate reliably and profitably, oil refineries, petrochemical plants and gas processing facilities must avoid equipment failures. Blockchain and the downstream segment: Increasing efficiency through technology Oil and gas companies are finding creative ways to look for solutions to new problems in the face of climate change and growing environmental awareness.