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Electrochemistry: battery voltage and the Nernst Equation?

What determines the Voltage of an electrochemical cell, such as a lithium ion battery, redox flow battery, a hydrogen fuel cell, an electrolyser or an electrowinning plant? This note explains electrochemical voltages, from first principles, starting with Standard Potentials and the Nernst Equation.

Carbon capture and storage: research conclusions?

Carbon capture and storage (CCS) prevents CO2 from entering the atmosphere. Options include the amine process, blue hydrogen, novel combustion technologies and cutting edge sorbents and membranes. Total CCS costs range from $80-130/ton, while blue value chains seem to be accelerating rapidly in the US. This article summarizes the top conclusions from our carbon capture…

Global PGM demand: breakdown by metal and use?

Core global PGM demand ran at 565 tons in 2023, which remains c6% lower than the all-time peak demand of 600Tpa in 2019. We model a recovery to 700 Tpa of demand for platinum, palladium and rhodium in 2030, then a long run decline to 350Tpa if EVs ultimately reach 90% of vehicle sales by…

Battery cathode active materials and manufacturing?

Lithium ion batteries famously have cathodes containing lithium, nickel, manganese, cobalt, aluminium and/or iron phosphate. But how are these cathode active materials manufactured? This data-file gathers specific details from technical papers and patents by leading companies such as BASF, LG, CATL, Panasonic, Solvay and Arkema.

Costs of biogas upgrading to biomethane?

Costs of biogas upgrading into biomethane are estimated at $7/mcf off of capex cost of $400/ton, in this data-file. The largest contributor to total costs is carbon filtering, to remove siloxanes, VOCs and H2S, which we have modelled from first principles, at $2/mcfe. Underlying data into biogas compositions and impurities are also tabulated for reference.

Turbochargers: leading companies?

Six leading companies in turbochargers control two-thirds of the $15-20bn pa global turbochargers market. 55% of ICE vehicles now have turbochargers, which can improve fuel economy my as much as 10%, by enabling smaller and better utilized engines to achieve higher peak power ratings. What opportunities ahead, to adapt for vehicle electrification, or even if…

Acetylene: production costs?

Acetylene production costs are broken down in this data-file, estimated at $1,425/ton for a 10% IRR on a petrochemical facility that partially oxidizes the methane molecule. CO2 intensity is over 3 kg/kg. Up to 12MTpa of acetylene is produced globally for welding and as a petrochemical building block.

June 22, 2023

Industrial gas separation: swing producers?

Swing Adsorption separates gases, based on their differential loading onto zeolite adsorbents at varying Pressures. The first PSA plant goes back to 1966. Today, tens of thousands of PSA plants purify hydrogen, biogas, polymers, nitrogen/oxygen and possibly in the future, can capture CO2? This 16-page note explores the technology, costs, challenges, companies.

May 31, 2023

Industrial gases: air separation units?

Cryogenic air separation is used to produce 400MTpa of oxygen, plus pure nitrogen and argon; for steel, metals, ammonia, wind-solar inputs, semiconductor, blue hydrogen and Allam cycle oxy-combustion. Hence this 16-page report is an overview of industrial gases. How does air separation work? What costs, energy use and CO2 intensity? Who benefits amidst the energy…

May 10, 2023

Topsoe: autothermal reforming technology?

Topsoe autothermal reforming technology aims to maximize the uptime and reliability of blue hydrogen production, despite ultra-high combustion temperatures from the partial oxidation reaction, while achieving high energy efficiency, 90-97% CO2 capture and

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