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Our
Pulping and Bleaching Groups can help solve your process or equipment
problems. We are
skilled in simulating all process operations starting from logs
or chips to the finished bleached pulp. Our
data can be used to design greenfield mills, to modernize or
optimize current processes or for developing new pulp grades. Our
expertise covers all aspects of kraft, sulfite and mechanical
pulping. We have
assisted many mills in conversion to ECF bleaching and research
in novel TCF techniques. Contact us to see how we can help you.
CONTACT
Keith Becker <firstname>@econotech.com
Please click on the link to access a standard list of our Pulping & Bleaching Services. For custom services and quotes, please contact us.
PULPING - STUDIES AND APPLICATIONS
- Optimization of low kappa pulping (EMCC®, RDH®)
parameters necessary for production of ECF and TCF pulps.
- Evaluation of new fiber sources, including exotic or non-wood
fiber supplies.
- Screening of tree clones for yield and fiber properties.
- General pulping studies with different chip blends for developing
new paper grades.
- Layered cooking of chips to quantify benefits of chip thickness
screening.
- Collection of process data for mill modernization or design
of greenfield mills.
- Regular auditing program for evaluation of mill chip supplies
for pulp yield and strength.
- Production of possible new pulp grades for sales evaluation.
- Evaluation of cooking additives and surfactants.
PULPING - SIMULATIONS AND CAPABILITIES
- Kraft batch and continuous digester cooking simulations with
Ahlstrom EMCC®, MCC®, and Lo-solids®; Beloit RDH®,
and Bauer M&D cooks.
- Cooking with kraft, kraft-AQ, polysulfide, soda, soda-AQ,
organosolv, ORGANOCELL®, Alcell®, ASAM, acid sulfite, alkaline
sulfite, NSSC, green liquor and high yield soda ash processes.
- Mechanical pulping (RMP, CMP, TMP, CTMP).
- Equipment for chipping, chip screening for size and thickness,
pulp screening, pulp fines removal and pulp drying.
- Sawdust cooking and non-wood evaluations.
- Collection of black liquor from cooks for recovery furnace
design.
BLEACHING - STUDIES AND APPLICATIONS
- ECF and TCF bleaching of kraft and sulfite pulps.
- Oxygen delignification studies.
- Ozone bleaching.
- Low-AOX and dioxin-free bleaching sequences.
- Peroxide and xylanase applications for ECF and TCF pulps.
- Estimating increased bleaching costs from washer carryover.
- Bleaching options in modernizing and designing new bleach
plants.
- Impact of bleach plant modification on costs, pulp strength
and effluent properties.
- Bleaching of recycled pulp and mixed office wastes.
- Mechanical pulp bleaching.
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