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Turning marine CO2 emissions into useful pebbles
CategoriesSustainable News

Turning marine CO2 emissions into useful pebbles

By Zarkon Group,

Spotted: Proposed international regulations will mandate at least a 40 per cent reduction in CO2 emissions from ships by 2030. Alisha Fredriksson, co-founder and CEO of London-based company Seabound, discovered that shipowners lack feasible options to meet this requirement.

The realisation motivated Fredriksson to develop a solution, leading to Seabound’s lime-based carbon capture equipment, which can be installed near a ship’s smokestack to capture up to 95 per cent of CO2 emissions from the exhaust.

To curb the release of greenhouse gases into the atmosphere, Seabound implements its carbon capture system near its funnel. Quicklime pellets are consistently introduced into the device, undergoing chemical reactions with CO2 in the exhaust to form limestone. Upon docking, the pellets can then be used for future CO2 capture on other vessels, sold as construction materials, or divided into pure CO2 for various purposes.

Seabound’s innovative technology holds promise for various vessel types, including container ships, cruise ships, and dry bulk carriers. What sets this company apart is its seamless retrofitting capability for existing ships, rendering decarbonisation of shipping more accessible, rapid, and scalable.

The startup recently achieved a key milestone when, in partnership with global shipping company Lomar, it completed a successful pilot of its technology on-board a commercial container ship. The 240-metre-long vessel, which was chartered by liner shipping company Hapag-Lloyd, was equipped with a prototype version of the system that captured around one tonne of CO2 per day. Having completed the pilot, Seabound will now progress to creating its first full-scale systems, which it hopes to deliver commercially from 2025 onwards.

Springwise has previously spotted other innovators looking to make the maritime industry greener, including a startup that’s developed a ship-cleaning robot and a company that’s presented concept designs for a zero-emission ship.

Written By: Georgia King

Reference

Atelier 9.81 models Calais port tower on stack of pebbles
CategoriesArchitecture

Atelier 9.81 models Calais port tower on stack of pebbles

By Zarkon Group,

French architecture studio Atelier 9.81 has designed a tower of staggered concrete blocks for a harbour master’s office and lookout building on the Calais coastline.

Forming part of the Calais Port 2015 expansion plan, the 38-metre-tall tower comprises four stacked white-concrete boxes with decorative surfaces.

The blocks are designed by Atelier 9.81 to resemble balancing pebbles and visually separate the functions of spaces inside.

Concrete Calais port lookout office tower by Atelier 9.81
The staggered concrete boxes feature patterned surfaces

Situated at the junction between the existing port and its planned extension, the building is intended as a distinctive entry point to Calais that is visible from the sea, surrounding beaches and the nearby city.

“We have opted for a visual fragmentation of the program,” Atelier 9.81 associate architect Cédric Michel told Dezeen.

“Like pebbles balanced on top of each other, this work is erected by accumulation, by stratification of stories contained in simple geometric shapes.”

View from the lookout tower at Calais' harbour master's office
It forms part of the Calais port’s wider expansion

The harbour master’s office is built in white concrete to withstand harsh coastal weather and cement the image of a cairn – a man-made pile of stones.

“From this idea of ​​the cairn, it seemed important to us to use only one material,” explained Michel. “Also, with the extreme climatic conditions of the coast, the question of sustainability played a role in our choice.”

The base of the building is a square four-storey volume that was cast in situ. It contains offices, meeting rooms, a control station for locks and movable bridges, and a roof terrace.

Prefabricated concrete was used to construct the rest of the tower, including the central structural core.

View of the sea from inside Calais' harbour master's office by Atelier 9.81
The base volume was cast in situ

The middle two volumes in the tower act as a structural void, clad in the precast concrete panels.

These panels feature light bas-relief, including crossing lines and a sandblasted geometric pattern depicting the Strait of Dover, or the Pas de Calais in French, which is the narrow water passage separating England and France.

View of the sea from the terrace at Calais' harbour master's office by Atelier 9.81
Terraces overlook the port

Concrete cladding stamped with circular patterns wraps the volume at the top of the building, which contains the facilities and equipment for monitoring and managing the port.

This two-level volume has breakout space and living quarters on the lower section, and a glazed lookout with an outdoor panoramic terrace on the upper level.

Other concrete buildings with boxy silhouettes featured on Dezeen include a power station control centre in Austria and an apartment block in Tokyo that staggers to create a series of terraces.

The photography is by Nicolas da Silva Lucas.

Reference