Hydrothermal liquefaction of municipal sewage sludge: Effect of red mud catalyst in ethylene and inert ambiences

Tawsif Rahman^a Hossein Jahromi^ab Poulam iRoy^a Sushil Adhikari^ab EhsanHassani^cTae-Sik Oh^c

ScienceDirect Publication here

Highlights

•Ethylene was utilized in HTL of municipal sewage sludge for the first time.

• The use of ethylene atmosphere improved the stability of HTL biocrude.

• The reduction temperature of red mud influenced the catalytic activities.•

RRM500 catalyst promoted ring-opening reaction in biocrude.

• RRM500-ethylene combination reduced nitrogen content of HTL oil.