Browse

Lately, the waste black liquor generated through paper manufacturing, has been increased in amounts, which represents a threat to the environment and human health. On the other hand, there is a great concern related to the energy crisis occurring all over the world. The use of fossil fuels through the combustion process generates greenhouse gas emissions being harmful to the environment. For this reason, the principle of the circular economy must be taken into account, ``nothing is lost, everything is transformed'...

The lignocellulosic biomass is produced worldwide in large quantities, which may contribute to environmental changes, global warming, wildfires, ocean and sea level rise. Recent research demonstrated efficacy of the thermal reconversion of black liquor, which represents a waste resulted from wood Kraft pulping, into gaseous (syngas), liquid (bio-oil) and solid (bio-char) final products through the pyrolysis process. This review describes the physical chemical and energy features of black liquor required for its va...