Supercritical methanol (SCM) solvolysis and catalysis has recently emerged as a promising pathway to produce gasoline‐range light alcohols from woody biomass through staged depolymerization and hydro‐deoxygenation (DHDO). Here, structure–property relationships of Cu“M”AlOx catalysts (M = Mg, Zr, and Ce) are examined for upgrading delignified hybrid poplar via SCM‐DHDO. CuCeAlOx displays the highest activity, increasing the C2C7 alcohol production rate and selectivity by twofold in batch reactions, and >50% in semicontinuous reactions relative to the current state‐of‐the‐art CuMgAlOx. The performance of CuCeAlOx is correlated with its high reducibility and acidity. Cu sintering and biogenic impurity poisoning are identified as possible deactivation mechanisms over 60 h of continuous testing. The gasoline‐range SCM‐DHDO products are comprised of primarily aliphatic alcohols that result in improved energy density and favorably reduced vapor pressure, relative to ethanol, with the tradeoff of nonsynergistic octane blending with conventional gasoline and lower oxidation stability. Overall, this work highlights the potential to produce suitable light oxygenates by SCM‐DHDO processing for gasoline bioblendstock applications.
DFACs in a contingency environment consume large amounts of energy and resources, and generate large amounts of food and solid waste daily. Almost all Contingency Basecamp (CB) DFACs provide individual paper and plastic ware, which is costly in terms of purchase, transportation, and disposal. This work analyzed the effects of replacing paper and plastic ware with reusable materials, and of adding industrial dishwashers to reduce the logistical burden of using paper and plastic ware. Additional enhancements analyzed were: (1) greywater heat recovery units, (2) solar water heaters, and (3) anaerobic biodigesters. Implementing dishwashing facilities on contingency DFACs was found to be economically viable. Greywater heat recovery was recommended as a standard addition to dishwashing facilities at contingency DFACs. Solar water heating was recommended only at enduring contingency base camps. Anaerobic biodigesters were recommended for base-wide use.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.