Black liquor is the by-product from the kraft process when digesting pulpwood into paper pulp. It is a source of biofuel derived from organic, renewable biomass sources and a very important form of energy.
In 2023, the United States of America led the production of black liquor with 696.0PJ (petajoules) produced, making up 38.9% of the total quantity produced globally. Sweden, Canada, Finland and Japan produced 185.1PJ (10.4%), 157.9PJ (8.8%), 142.5PJ (8.0%), and 133.0PJ (7.4%), respectively.
South Africa is the only African country producing black liquor, with 16.4PJ produced, making up 1% of the global total. Comparing the growth of the pulp and paper industry in Africa with the fact that Africa produced only 1% of black liquor in 2023, it was revealed that there is a huge gap in the recycling of by-products, commonly called waste products, in Africa.
The United States dominates global natural gas production in 2024, contributing 1.03 trillion cubic metres (Tcm), nearly one-quarter of the world’s total.
Russia (0.63Tcm) and Iran (0.26Tcm) follow as the second and third largest producers.
China (0.25Tcm) and Canada (0.19Tcm) also feature strongly, rounding out the top five producers.
Collectively, these top five countries account for more than 50% of global production.
Emerging producers like Nigeria, Egypt, and Azerbaijan contribute significantly to the supply but remain far behind the leading nations.