METHOD OF PRODUCING FUEL FROM LIGNIN Russian patent published in 1999 - IPC

FIELD: fuels. SUBSTANCE: fuel is produced by mixing lignin with a petroleum residue (oil slag, tar, cracking residue, thermal gas oil, heavy catalytic cracking gas oil, asphaltenes and oil lubricating oil production extracts, pyrolysis tar, mazut, coil tar, pitch, heavy coal-tar coking products) or organic production vat residues or wastes at weight ratio from 9:1 to 1:9, advantageously from 2:1 to 1:3. Tar, mazut, and coil pitch are preliminarily liquified by heating to 80-150 C. Resultant fuel is either directly burned in hearths or formed into briquets or granules under pressure 0.01-5.0 Mpa and further used for communal-general needs and also as reducing agent in ferrous and nonferrous metallurgy. EFFECT: avoided drying of lignin and extremely simplified hardware implementation of process. 4 cl, 12 ex