Bio-refinery system of DME or CH4 production from black liquor gasification in pulp mills

• There is great interest in developing black liquor gasification technology over recent years for efficient recovery of bio-based residues in chemical pulp mills. Two potential technologies of producing dimethyl ether (DIME) and methane (CH4) as alternative fuels from black liquor gasification integrated with the pulp mill have been studied and compared in this paper. System performance is evaluated based on: (i) comparison with the reference pulp mill, (ii) fuel to product efficiency (FTPE) and (iii) biofuel production potential (BPP). The comparison with the reference mill shows that black liquor to biofuel route will add a highly significant new revenue stream to the pulp industry. The results indicate a large potential of DME and CH4 production globally in terms of black liquor availability. BPP and FTPE of CH4 production is higher than DME due to more optimized integration with the pulping process and elimination of evaporation unit in the pulp mill.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Kemiteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Chemical Engineering (hsv//eng)

Nyckelord

Black liquor gasification

Biofuels

Bioenergy

Dimethyl ether (DME)

Methane

hydrogen-production

gas-turbines

co2 capture

paper-mills

energy

biomass

industry

reductions

emission

storage

Chemical engineering

Kemiteknik

Energy- and Environmental Engineering

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)