Method for processing a mixture of cellulose/plastic waste particles to form a fuel
AssigneeQlyte Technologies B.V.
InventorsMohammed Nafid, Ralph Koekkoek
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AssigneeQlyte Technologies B.V.
InventorsMohammed Nafid, Ralph Koekkoek
Estimating the term…
The invention relates to a method for processing a mixture of cellulose/plastic waste particles comprising cellulose and thermoplastic materials. The thermoplastic material constitutes at least 10 weight% of the total weight of the waste mixture The cellu-lose/plastic waste mixture is first dried by treatment with a medium with a temperature in the range of 50 to 150 ° C., wherein the exit temperature of the drying medium has a temperature of 115 ° C. or less. The dried cellulose/plastic waste mixture is then fed to a purification stage, and subjected to the operation of the purification stage. The purification stage comprises at least one separator selected from the group of: wind separator, sieve, metal separator, separator for separating out chlorine- containing components, or a combination thereof.
Method for processing a mixture of cellulose/plastic waste particles comprising cellulose and thermoplastic materials, wherein the thermoplastic material constitutes at least 10 weight % of the total weight of the waste mixture, which method comprises the following steps :
Method according to any one of the preceding claims, wherein the purification step comprises a sieve.
Method according to any one of the preceding claims, wherein the purification step comprises a chlorine-containing component separator based on NIR technology which is able to remove chlorine-containing plastic parts.
Method according to any one of the preceding claims, wherein the purification step comprises a metal separator.
Method according to any one of the preceding claims, wherein the cellulose/plastic waste mixture is transported on a conveyer dryer in order to dry the mixture.
Method according to any one of the preceding claims, wherein the cellulose/plastic waste mixture is fed into a rotary dryer in order to dry the mixture.
Method according to any one of the preceding claims, wherein a dryer medium is used in a drying step, wherein the medium is heated using residual heat.
Method according to any one of the preceding claims, wherein the dryer medium is a gaseous medium.
Method according to any one of the preceding claims, wherein the dryer medium is a gaseous medium consisting at least partly of exhaust gas of an incinerator.
Method according to any one of the preceding claims, wherein the mixture of cellulose/plastic originates from paper recycling.
Method according to any one of the preceding claims, wherein the water content of the cellulose/plastic mixture in step (a) is reduced to 10 weight % or less.
Method according to any one of the preceding claims, wherein the water content of the cellulose/plastic mixture in step (a) is reduced to a value of about 2 weight % or more.
Method according to any one of the preceding claims, wherein the cellulose/plastic waste mixture prior to step (a) is pre-treated by means of mechanical pressing to reduce the water content.
Method according to any one of the preceding claims, wherein the cellulose and thermoplastic material comprise at least 60 weight % of the waste mixture.
Method according to any one of the preceding claims, wherein the thermoplastic material comprises at least 20 weight % of the total weight of the waste mixture.
Method according to any one of the preceding claims, wherein the cellulose/plastic waste mixture comprises less than 40 weight % of thermoplastic material, based on the total dry weight of cellulose and thermoplastic materials.
Method according to any one of the preceding claims, wherein the cellulose/plastic waste mixture, prior to entering step (a), consists of particles with a particle diameter of maximum about 150 mm or less, and about 60 mm or more.
Method according to any one of the preceding claims, wherein the obtained cellulose/plastic waste mixture comprises less than 8 weight % of inert material.
Method according to any one of the preceding claims, wherein the obtained cellulose/plastic waste mixture comprises less than 0.8 weight % of chlorine.
Dependencies are inferred from the claim text.