A reactor system for the modification of lignocellulosic materials comprises a reaction vessel, a vacuum connection and an inlet and/or outlet connected to a gas flow loop connected to a heat exchanger and at least one fluid circulation device. Particularly, gas flow loop is arranged so as to allow gas circulation over the diameter of the reaction vessel. The gas flow loop preferably includes a gas distribution device, such as a distribution plate.

A reactor system for the modification of lignocellulosic materials comprises a reaction vessel, a vacuum connection and an inlet and/or outlet connected to a gas flow loop connected to a heat exchanger and at least one fluid circulation device. Particularly, gas flow loop is arranged so as to allow gas circulation over the diameter of the reaction vessel. The gas flow loop preferably includes a gas distribution device, such as a distribution plate.

Disclosed is a reactor system for the modification of lignocellulosic materials. According to the invention, the system comprises a reaction vessel, a vacuum connection and an inlet and/or outlet connected to a gas flow loop connected to a heat exchanger and at least one fluid circulation device. Particularly, gas flow loop is arranged so as to allow gas circulation over the diameter of the reaction vessel. The gas flow loop preferably includes a gas distribution device, such as a distribution plate.

Disclosed is a reactor system for the modification of lignocellulosic materials. According to the invention, the system comprises a reaction vessel, a vacuum connection and an inlet and/or outlet connected to a gas flow loop connected to a heat exchanger and at least one fluid circulation device. Particularly, gas flow loop is arranged so as to allow gas circulation over the diameter of the reaction vessel. The gas flow loop preferably includes a gas distribution device, such as a distribution plate.

The present invention provides a paraffin-reinforced wood and a method for manufacturing the same, and more specifically, a paraffin-reinforced wood in which a natural wood is vacuum impregnated with dissolved paraffin and processed, thereby preventing a penetration of moisture into the wood and increasing durability and corrosion resistance of the wood, such that the reinforced wood is very useful as various deck-wood, agricultural wood posts, water wood posts, etc., and a method and apparatus for manufacturing the same.

A transformation of an existing, conventional southern yellow pine (SYP) lumber pressure treatment plant that previously impregnated wood with non-sustainable chemicals, to using environmentally friendly sodium silicate formulations. The transformation may include adding heated storage tanks for solutions of siliceous solutions and adding a heater to an existing storage tank, installing delivery lines capable of handling high pH, viscous solutions between at least the pre-existing vacuum pressure impregnation tank and the added or existing heated storage tank, a CO.sub.2 storage tank with associated vaporizer and a CO.sub.2 recovery system, associated lines to and from the pre-existing vacuum pressure impregnation tank and the CO.sub.2 storage tank and the CO.sub.2 recovery system, pumps for circulating the solutions, and a thermal management system including: insulation and cladding on one or more of the tanks and lines, heat tracing on all level indicators; and insertion of heating coils in working tanks.

A transformation of an existing, conventional southern yellow pine (SYP) lumber pressure treatment plant that previously impregnated wood with non-sustainable chemicals, to using environmentally friendly sodium silicate formulations. The transformation may include adding heated storage tanks for solutions of siliceous solutions and adding a heater to an existing storage tank, installing delivery lines capable of handling high pH, viscous solutions between at least the pre-existing vacuum pressure impregnation tank and the added or existing heated storage tank, a CO.sub.2 storage tank with associated vaporizer and a CO.sub.2 recovery system, associated lines to and from the pre-existing vacuum pressure impregnation tank and the CO.sub.2 storage tank and the CO.sub.2 recovery system, pumps for circulating the solutions, and a thermal management system including: insulation and cladding on one or more of the tanks and lines, heat tracing on all level indicators; and insertion of heating coils in working tanks.

A system for treating wood (30), comprising: a treatment vessel (14) configured to receive at least one wood stack (4) for treatment, and a stack holding system (2) for holding a wood stack (4), the stack holding system (2) comprising: a frame (6), configured to support the wood stack (4); a first element (8), connected to the frame (6) near an upper side of said frame (6), configured to exert a first, downward force on the wood stack (4); and a second element (10), connected to the frame (6) near a lower side of said frame (6), configured to exert a second force on the wood stack (4) in a direction opposite said first force. The invention also comprises a method for treating wood, using a system for treating wood according to the invention.

A system for treating wood (30), comprising: a treatment vessel (14) configured to receive at least one wood stack (4) for treatment, and a stack holding system (2) for holding a wood stack (4), the stack holding system (2) comprising: a frame (6), configured to support the wood stack (4); a first element (8), connected to the frame (6) near an upper side of said frame (6), configured to exert a first, downward force on the wood stack (4); and a second element (10), connected to the frame (6) near a lower side of said frame (6), configured to exert a second force on the wood stack (4) in a direction opposite said first force. The invention also comprises a method for treating wood, using a system for treating wood according to the invention.

A method for manufacturing a transparent heat-insulation building material from waste wood is provided. The method includes the following steps of: step S1, wood pretreatment, drying immersing, heating, adding a complexing agent solution, stirring, then drying the wood; step S2, wood acetylation treatment, loading the wood into a pressure vessel, adding acetylation fluid, reducing the pressure, and then pressurizing and raising a temperature; step S3, resin impregnating, adding a methyl methacrylate monomer solution and heating it, adding the methyl methacrylate monomer and benzoyl peroxide, bleaching the wood by hydrogen peroxide, and placing them in a vacuum permeator to allow the prepolymer liquid to penetrate into the wood and collecting the prepolymer liquid; and step S4, hot press molding polymerizing the wood in an oven and sleeving it into a heat press molding to obtain a densified wood.