Prosopis juliflora as feedstock for India’s first green methanol plant

Why in the News?
The invasive shrub Prosopis juliflora is being explored as feedstock for India’s first green methanol plant at Deendayal Port Authority (Gujarat), turning an ecological threat into a clean energy resource.

About Prosopis juliflora

• A Mexican-origin shrub introduced in India during the colonial period to combat desertification.
• Locally known as gando baval (Gujarat), vilayati keekar (North India), and velikathan (Tamil Nadu).
• Listed among the world’s top invasive species due to its aggressive spread.

Impact in Banni Grasslands
In the Banni Grasslands, it has replaced native grasses, reducing biodiversity and affecting pastoral livelihoods. Its deep roots and rapid spread make it difficult to eradicate.

Green Methanol Project

• The plant will convert Prosopis biomass into Green Methanol using gasification technology.
• Developed by Thermax Energy with technology support from Ankur Scientific.
• Expected production: ~5 tonnes per day.
• Intended use: fuel for ocean-going ships as a cleaner alternative to bunker oil.

What is Green Methanol?
Unlike conventional methanol (derived from fossil fuels), green methanol is produced from renewable biomass such as agricultural residues or invasive plants, making it a low-carbon fuel option.

Environmental Benefits

• Can reduce CO₂ emissions by up to 95%.
• Cuts NOx emissions by up to 80%.
• Eliminates sulphur oxides and particulate matter.

Significance

• Converts an invasive species problem into an economic opportunity.
• Supports India’s green shipping and decarbonisation goals.
• Promotes circular economy by utilising waste biomass.

Source: The Hindu