b'RENEWABLE ENERGY INITIATIVESRenewable gas for tissue drying hoods to enable carbon-negative tissue productionBy Thomas Brck, Business Development Director, Meva Energy ABFigure 1. A Meva Energy gasification unit at a paper mill supplying renewable gas.ABSTRACT form of toilet paper, kitchen paper,is generally heated with steam from One of the main CO 2challenges innapkin or diaper. Tissue producers arethe inside and hot air from the outside. tissue production is finally solved. therefore constantly trying to improveDirect gas combustion in gas burners Combustion of fossil gas (natural gastissue quality while keeping a loware used to generate this hot air, and LPG) for generating high-qualityproduction cost. wherein the hot flue gas is blown into a process heat for tissue drying hoodsdrying hood to dry the tissue paper.has been the conventional solution andA critical part of the production is the no efficient alternatives have been indrying of tissue without pressing it,The hot air is in direct contact withRenewable sight. Until now: renewable gas canwhich can result in a loss of softnessthe paper which puts high demandsgas can finally become a viable replacement forand fluffy character of tissue. Toon the quality of the hot air. Avoidingfinally fossil gas! achieve this, the best practice todayany smell or black particles beingbecome is to let the paper travel over a large,deposited on the tissue paper isa viable Tissue, needs to be soft and with highheated steel cylinderthe yankeecrucial. To achieve low cost, stable andreplacement absorption capacity, whether in thecylinderat high speed. The yankeehigh quality of the process heat, thefor fossil gas!72 TISSUE TECHNOLOGY INTERNATIONAL'