Conversion of Lignin to Hydrocarbon Fuels Via Catalytic Depolymerization and Hydrogenation

Source: AIChE
  • Type:
    Conference Presentation
  • Conference Type:
    AIChE Annual Meeting
  • Presentation Date:
    November 17, 2014
  • Duration:
    15 minutes
  • Skill Level:
  • PDHs:

Share This Post:

Three different solvent systems (sodium hydroxide solution, ethanol aqueous solution and aqueous solution of phosphoric acid) were chosen to study the conversion of lignin to hydrocarbons via catalytic depolymerization and hydrogenation. A two-step method, selective depolymerization of lignin to liquid compounds rich in phenolics followed by hydrogenation of the obtained liquid, was developed. It was found that sodium hydroxide solution showed the best performance among the three, as the yield of phenolic compounds could reach 60%, with a selectivity of 85% when used for lignin degradation. What’s more, the selectivity for hydrocarbons could reach 97% when the derived phenolic compounds were hydrogenated. The preliminary mechanism study using model compounds indicated that the conversion of lignin to hydrocarbons is a multi-step process consisting of alkaline hydrolysis, demethylation, demethoxylation and transalkylation.
Once the content has been viewed and you have attested to it, you will be able to download and print a certificate for PDH credits. If you have already viewed this content, please click here to login.



Do you already own this?



AIChE Member Credits 0.5
AIChE Members $15.00
AIChE Graduate Student Members $15.00
AIChE Undergraduate Student Members Free
Non-Members $25.00