Catalytic Effects of MgSO4 and ZnCl2 On Fast Pyrolysis of Pine for the Production of Bio-Oils

Fuels and Petrochemicals Division
AIChE Annual Meeting
November 6, 2013 - 4:00pm-4:15pm

The effects of MgSO4 and ZnCl2 as catalysts on fast pyrolysis of pine were investigated in a bench-scale bubbling fluidized bed reactor. The study showed that both MgSO4 and ZnCl2 could shift the pyrolysis of pine to a lower temperature zone , that is , most of pyrolytic reactions for cellulose and hemicellulose would happen at lower temperature while lignin at higher temperature , which results in different composition of bio-oils from that without adding any of these two salts. Compared to the bio-oils obtained without catalysts (base case) , glucopyranose in bio-oils was increased to 20.69 % from less than 1% (base case) when 20 wt% of MgSO4 was added; while ketones decreased from 26.71 % (base case) to 8.41 % , 2-Propanone , 1-hydroxy from 9.94 % (base case) to 0.62 %. When 30 wt% of ZnCl2 is added , glucopyranose in bio-oils hiked to 20.21 % from less than 1% (base case); while phenols reduced to 6.25% from 27.09 % (base case). The pH of bio-oils rises whether MgSO4 or ZnCl2 was added. This study suggests that by adding specific salts into biomass , the composition of bio-oils obtained from fast pyrolysis can be of greatly different. Therefore , we can increase the content of certain chemicals in bio-oils on purpose , which could make the extraction of value-added chemicals from bio-oils more feasible and economical.

Professional Development Hours
0.5 PDHs
You will be able to download and print a certificate for these PDH credits once the content has been viewed. If you have already viewed this content, please click here to login.

Would you like to access this content?

No problem. You just have to complete the following steps.

You have completed 0 of 2 steps.

  1. Log in

    You must be logged in to view this content. Log in now.

  2. Purchase Technical Presentation

    You must purchase this technical presentation using one of the options below.
    If you already purchased this content recently, please click here to refresh the system's record of ownerships.


Credits 0.5 Use credits
List Price $25.00 Buy now
AIChE Members $15.00 Buy now
AIChE Fuels and Petrochemicals Division Members Free Free access
AIChE Undergraduate Student Members Free Free access
AIChE Graduate Student Members Free Free access
Related Topics: