Crossing the Valley of NLACM with Alcohol-to-Hydrocarbon Technology
by Jim Lane (Biofuels Digest) There’s one crossing worse than the Valley of Death and that is the Valley of NLACM.
Although it sounds more like a goose trying to say “You’ll like him” — it’s the Natural Law of Alternative Commodity Markets, and it’s the biggest single impediment, globally, retarding the advance of renewable transport fuels as a world-scale low-carbon alternative to petroleum.
NLACM states that no one will make a fuel, however attractive to customers (such as a drop-in hydrocarbon fuel) if the market value of the intermediates (such as an alcohol) is higher when sold separately.
In other words, no one will ever make a hydrocarbon fuel from Johnnie Walker Black Label scotch, excepting a complete emergency, no matter if the technology exists or not.
And as long as renewables are confined to niche markets like E10 ethanol or B5 biodiesel blending — they can be good business for producers, and good investments, but they are not decarbonizing transportation fuel to the extent they could be.
Now, along comes Vertimass technology as a neat advance in alcohol-to-hydrocarbons. It is the first (or perhaps others, or many, to come) that leaps the Valley of NLACM. It’s not yet proven at scale yet, so let’s keep a perspective on promise vs. delivery. But here are the need to knows.
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Vertimass reports that it is producing 1 gallon of hydrocarbon fuel for every 1.6 gallons of ethanol.
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Earlier low-carbon fuel technology classes have been beset by more than NLACM problems.
1. The E10 saturation point, and low acceptance to date for higher ethanol blends in road transport, excepting Brazil, Argentina and Uruguay.
2. Shortages of targeted feedstocks — wood and grains are replete, but crop residue aggregation/clean-up is still in its infancy, there are practical limits on availability of residues, and novel crops have yet to be widely adopted, or in some cases reach sufficient productivity to overcome high establishment costs (e.g. algae).
3. Cellulosic recalcitrance. It’s proven difficult to affordably extract cellulosic sugars — several technologies are on the way, but few expected cellulosic fuels to be at such an embryonic stage in 2017.
4. Catalyst cost and performance. Some of those that perform well cost too much, and many that are more affordable have struggled to perform with biomass conditions. Generally, too much catalyst poison. A new generation of catalysts are being deployed, but progress has been slow compared to what was expected back in 2006-07.
5. Biomass transport costs. Moving water-laden biomass across enough miles to make for large, economically efficient plants has not yet proven affordable using trucks and rail.
6. High capex for greenfield projects in advanced biofuels. $200-$400 million checks have rarely been forthcoming from investors for commercial biorefineries, and many projects with high capex have found it impossible in current market conditions to raise affordable capital.
7. The crash in oil prices. Low commodity prices have put severe pressure on the bioeconomy to slash costs, and those technologies that have the economics have not yet reached sufficient maturity and in some cases, to hit attractive numbers, depend on the residue feedstocks that we noted in #2.
Strategic advantages
There are material strategic advantages that come into play with hydrocarbons made from renewable alcohols.
1. Reduced capex/opex where hydrocarbon production is a bolt-on to existing ethanol plants. We’ve yet to see if the complete techno-economic assessment will show that the entire cost of production will stay below the NLACM threshold — but we have real reasons to be optimistic because of the size of the NLACM spread based on inputs alone.
2. Ethanol producers are facing E10 saturation pressure, despite very low corn feedstock prices, which depresses ethanol prices and limits growth. E15 and E85 adoption are not yet delivering massive numbers of gallons. E30 really is an amazing target for future engines, but those technologies are still far away — no one has a production engine. Ethanol exports, which also offer opportunities for producers, have an uncertain history. Those countries that have strong ethanol mandates generally have had strong domestic ethanol production — the mandate serves the domestic energy industry and energy security as much as a greenhouse gas emission agenda.
So, there are classic incentives to action for ethanol producers.
3. What is the size of the US diesel market? It is huge — 30 billion gallons of on-road diesel and more than 20 billion gallons in off-road usage. That’s why Neste, REG, Diamond Green Diesel are making renewable diesel as fast as they can — the limitation for them has been feedstock availability and price, rather than the market size problems, and there are no saturation issues. Also, there’s the global diesel market.
4. Assist for cellulosic or sorghum adoption. The production of affordable hydrocarbon fuel from ethanol could be an assist that the cellulosic ethanol industry needs. Converting corn ethanol to hydrocarbons could open up more of the established E10 market to cellulosics or established, lower-carbon grain feedstocks like sorghum. READ MORE