| Power from biomass


technology is said by its owners to be already proven with over 200 licensed applications in 34 countries.


The Catacarb process, available under licence from USA based Eickmeyer & Associates, was first implemented in 1961, and is “enabling a variety of industries to selectively remove CO2


from


mixed-composition gas streams”, with Catacarb units capturing over 50 000 tons of CO2


company says.


“Unlike some competing technologies, there are no carcinogens formed in the process,” says Gary Buckholz, CEO of Catacarb, which is owned and operated by Eickmeyer & Associates. The Catacarb process was invented and developed by A.G. Eickmeyer. As an employee of Stanolind Oil & Gas Co and J.F. Pritchard & Co in the 1940s and 50s, he became familiar with the Hot Potassium Carbonate (HPC) process being developed by the US Bureau of Mines. Eickmeyer believed the HPC process had many advantages, but through his trouble-shooting work on most of the early HPC installations, he also became aware of some drawbacks, which he addressed. The process required substantially less heat than the amine processes, but absorption/desorption rates were low. In addition, the equipment was too large, and the solution was sometimes corrosive.


Through the development of various catalysts and corrosion inhibitors, Eickmeyer & Associates


daily, the


has steadily improved on the original HPC process, culminating in today’s Catacarb process. In May 2024, Andritz reported that it had expanded its carbon capture technology portfolio via a licensing agreement with US Eickmeyer & Associates Inc, giving the Graz based company access to Catacarb and widening the range of industries to which it can provide capture systems (although Andritz has not been named as a supplier to the BECCS Stockholm project). In July 2022, Stockholm Exergi signed a patent licence agreement for the use of Capsol’s technology at KVV8.


Norway based Capsol Technologies believes its role in the BECCS Stockholm project positions it as “a front runner in the emerging market for negative emissions and highlights the increasing maturity of carbon removal markets.” According to Wendy Lam, CEO of Capsol Technologies, the Stockholm project creates “a global precedent for BECCS deployment and further strengthens confidence in Capsol’s technology.”


Capsol says its CapsolEoP technology is “particularly attractive for energy-from-waste and biomass plants with limited excess heat.” “With the first FID for a large-scale project using our technology now in place [BECCS Stockholm], we expect this to accelerate commercial traction and de-risk adoption across industries,” said Lam, with the Stockholm Exergi project highlighting the


purity of the dried gas exceeds 99%, meeting “storage and utilisation requirements.” Capsol also says its pressurised absorber design uses less plot space than competing technologies.


scalability of BECCS and Capsol’s growing role in enabling carbon-negative projects globally. Capsol says its technology is based on 15+ years of R&D and “can run fully electric, requires no external steam, and has little to no water need.” The first successful test of the technology was performed in 2008 at Värtaverket. The company says it currently operates three carbon capture (CapsolGo) and two liquefaction demo units on several flue gas streams in Europe. The technology platform with its “inherent heat recuperation and generation” is said to be applicable to all hard-to-abate industries, with flue gas CO2 The CO2


concentrations in the range 3-30%.


The use of HPC for post-combustion (from flue gases) carbon capture was, until recently, discarded as a viable option, says Capsol, due to the high energy demand (and cost) required to pressurise the flue gas before it enters the absorber. CapsolEoP was developed to address this. The capture unit can run on electricity only and there is no need to build an additional boiler for steam production. The electrical energy consumption is between 0.5 and 1.5 GJ/tons of CO2


captured, depending on the composition and temperature of the flue gas.


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