228 Main Street unit 375  Williamstown, Massachusetts  01267
Tel  (978) 774 1880  Fax (240) 595 6196  Email: Info@Mksystems.com

M/K Systems Laboratory Pulp Digesters – ASME/CE/CRN Compliant
High Temperature Liquor Circulation Systems

Reliable cooks  Black Liquor Sampling  H-factor Cooking  Easy to use  Patented

Single Vessel System

Dual Vessel System

The M/K laboratory digester system is designed to cook all types of wood chips, bamboo, biomass
materials, etc, or any cellulose-based material. Easily control by your cook by temperature/time
profiles, H-factor, or even system pressure. Our anti-turbulent design allows the user to rapidly
circulate liquor through our patented mixing module, resulting in the best liquor penetration of any
high pressure cooking system. Steam inlets for external boilers are also included for flash heatingmethods. The 2019 systems now reach 175 oC in less than an hour and hold the set point temperature
with accuracy within 0.1C. Rapid cooling is included in every system, allowing multiple cooks per day.
200Actual Cooking Data180160

Temperature [oC]14012010080604020

10020406080

Time
Time[minutes][minutes]

100120140

Uniform cooking
Various vessel sizes available
Safely condense vapors
Rapidly cool the system
Obtain repeatable cooks
Anti-turbulence design
US Patent# 7,811,416
US Patent# 8,172,984
Run vessels independently

System Requirements
1. Power: 220 Volts, 50 amps
2. Floor drain is recommended
3. 1.5 meter x 1.5 meter space

228 Main Street unit 375  Williamstown, Massachusetts  01267
Tel  (978) 774 1880  Fax (240) 595 6196  Email: Info@Mksystems.com

M/K Digester: Reliable, accurate, easy to use, and safe.
Running the M/K Digester is easyand safe. The software displays
a clear graph of the programmed
cooking profile before starting,avoiding errors. Control eachcooking segment bytemperature, heating rate, HFactor, time, or pressure.
Each step is monitored and isrecorded in excel with values ofliquor temperature, vapor
temperate, system pressure, as
well as all the heatertemperatures. Run one or bothvessels at the same time.
The M/K Digester uses several types ofheaters and sensors to accuratelycontrolling the cooking process. Bothliquor and vapor temperatures arerecorded, as well as all heatertemperatures and system pressure. Eachcooking vessel contains our unique chipbasket which is designed to work with
softwoods, hardwoods, straw-basedmaterials, and even granular materials.
Our easy to use sampling condenser isideal for extracting black liquor (whilecooking) from your cellulose products.
Obtain reliable cooks, safely and easily.
Worldwide M/K Digester Industry References/Patents/Publications
1. (United States),“Composition for the production of Improved Pulp”, Patent # US 6,890,404.
2. (United States),“Phenols as Additives in Kraft Pulping”, Patent Application Publication US 2019/0112757.
3. (United States), “Controlled Flocculation of Lignocellulosic Hydrolyzates”, Publication US 2016/0083808
A1.
4. (Canada), “Method for obtaining cellulose from biomass comprising lignocellulose”, Canadian #2,758,038.
5. (Australia), Liquid co-extraction process for production of sucrose, xylo-oligosaccharides andxylose from feedstock, Australian Pat. App. AU 2015252695 B2, World Wide Application # 2015/164948 Al.
6. (United States), “Tobacco-derived cellulose material and products formed thereof”, Patent # US
9,950,858.
7. (United States), “Method to separate lignin-rich solid phase from acidic biomass suspension at anacidic pH”, Patent # US 9,751,781.
8. (International Application),”Composition for inhibiting calcium salt scale formation”, Patent Application
AU 2,010,224,861.
9. (Portugal), “Method and aqueous composition for the production of improved pulp”, Patent # PT 1,392,914.
10. (United States), Publication: “Comparison of Oxidative
2 Alkaline Extraction Reaction's Impact on Pulp Properties
and the Environment”. T.M. Runge and A.R. Ragauskas, International Pulp Bleaching Conference, Helsinki.