Y Combinator-backed carbon seize agency Seabound lands $4.4M

Until you reside close to a port, you most likely don’t suppose a lot in regards to the tens of 1000’s of container ships tearing by means of the seas, hauling some 1.8 billion metric tons of stuff every year. But these vessels run on a number of the dirtiest fuel there’s, spewing more greenhouse gases than airplanes do within the course of. The trade is exploring various fuels and electrification to unravel the issue for next-generation ships, however within the meantime a Y Combinator-backed startup is gearing as much as (hopefully) assist decarbonize the big boats that’re already within the water.

London-based Seabound is at the moment prototyping carbon seize tools that connects to ships’ smokestacks, utilizing a “lime-based strategy” to chop carbon emissions by as a lot as 95%, co-founder and CEO Alisha Fredriksson stated in a name with TechCrunch. The startup’s tech works by routing the exhaust right into a container that’s stuffed with porous, calcium oxide pebbles, which in flip “bind to carbon dioxide to kind calcium carbonate,”— primarily limestone, per Fredriksson.

Although carbon seize has but to actually catch on for ships, Seabound is simply one of many corporations out to show the tech can ultimately scale. Others, together with Japanese transport agency K Line and Netherlands-based Value Maritime, are creating their very own carbon-capture tech for ships, sometimes using the better-established, solvent-based strategy (which is increasingly used in factories). But this comparably tried-and-true technique calls for more room and power aboard ships, as a result of the method of isolating the CO2 occurs on the vessel, in response to Fredriksson.

In distinction, Seabound intends to course of the CO2 on land, if in any respect. When the ships return from their journey, the limestone could be offered as is or separated by way of warmth. Within the latter case, the calcium oxide could be reused and the carbon offered to be used or sequestration, per Fredriksson, who beforehand helped construct maritime gas startup Liquid Wind. Her co-founder, CTO Roujia Wen, beforehand labored on AI merchandise at Amazon.

Seabound says it has signed six letters of intent with “main shipowners,” and it goals to trial the tech aboard ships starting subsequent 12 months. To get there, the corporate has secured $4.4 million in a seed spherical led by Chris Sacca’s Lowercarbon Capital. A number of different companies additionally chipped in on the deal, together with Japanese Pacific Delivery, Emles Enterprise Companions, Hawktail, Insurgent Fund and Soma Capital.

Past carbon seize, one other Y Combinator-backed startup is getting down to decarbonize present ships by way of a novel battery-swapping scheme. New Orleans-based Fleetzero goals to energy electrified ships utilizing transport container-sized battery packs, which could possibly be recharged by means of a community of charging stations at small ports.

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