Complimentary Webinars

Through June 30, AIChE members will receive complimentary, unlimited access to live and on-demand AIChE webinars by purchasing them with their newly increased number of credits. See more resources.

Red Mud Catalyzed Pyrolysis of Olive Mill Wastewater Sludge

Source: AIChE
  • Type:
    Conference Presentation
  • Conference Type:
    AIChE Annual Meeting
  • Presentation Date:
    November 19, 2014
  • Duration:
    15 minutes
  • Skill Level:
    Intermediate
  • PDHs:
    0.50

Share This Post:


Olive mill wastewater sludge (OMWS) is one of the major environmental pollutants in olive oil industry using traditional or three-phase process.  The major problem stems from the poor biodegradability of the OMWS because of its high phenolic compounds content.  In most Mediterranean countries, olive mill wastewater are stored in ponds where the major part of water evaporates and the sludge dries up and is then landfilled for disposal.  To address this serious environmental pollution problem, we developed fluidized bed catalytic pyrolysis of OMWS to produce pyrolysis liquids that are very stable, low viscosity (5-7 cP), neutral pH (6-7), and very high higher heating value (41 MJ/kg).  The pyrolysis was conducted at 400-500 oC in a red mud catalyst bed.  The yields of the organic fraction ranged from 28-35 mass% which is much higher than what obtains for other lignocellulosic biomass feedstocks.  The char/coke yield ranged from 20-29 mass% while the gas yield ranged from 24-37 mass%. The 13C NMR analysis of the liquid product showed predominance of aliphatic hydrocarbons and a small fraction of aromatic hydrocarbons.  In the absence of the catalyst, the liquid product contained acidic groups and was more viscous.

Presenter(s): 
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.

Checkout

Checkout

Do you already own this?

Pricing


Individuals

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