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5424039 Method and apparatus for producing active carbon by feeding electricity to rotary reactor
PatentsALERT thin thickness and the interior of the core member can securely be compressed and molded with even density.
5424034
METHOD AND AN APPARATUS FOR STERILIZING A CONTINUOUS PACKAGING MATERIAL WEB Hilmersson Ander Lund, SWEDEN Assigned to Tetra Lava1 Holdings & Finance SA The disclosure relates to a method and an apparatus for treating, for purposes of sterilization, a continuous material web by bringing the entire web or parts thereof intended for sterilization into contact with liquefied hydrogen peroxide and thereafter drying the web with the aid of a hot gaseous fluid. In order to improve the degree of destruction of micro-organisms present on the material web, the material web is dried, after contact with the liquefied hydrogen peroxide, with air which has been intentionally supplied with hydrogen peroxide. The apparatus for carrying out the method displays an elongate space fitted with inlet and outlet for the material web, through which space the material web is disposed to be led, and an outer flow duct disposed in communication with the inlet and the outlet and provided with means for supplying hot hydrogen peroxide-free air for mixing with a portion of the hydrogen peroxide-containing air after the drying operation, and recycling of the mixed, hydrogen peroxide-containing air through the elongate space in the direction of movement of the material web for a new drying cycle.
5424039 METHOD AND APPARATUS FOR PRODUCING ACTIVE CARBON BY FEEDING ELECTRICITY TO ROTARY REACTOR Hiral Yoji Omiya City, JAPAN Assigned to Helyo Shoji Kabushiki Kaisha To produce active carbon particles by carbonizing a carbon based raw material in a steam atmosphere while feeding electricity to the raw material received in a rotary reactor, a plurality of electrical receiving rods are secured to the inner wall surface of a cylindrical wall of the rotary reactor in the equally-spaced relationship as seen in the circumferential direction. In operation, a certain intensity of electric current is fed to the electricity receiving rods via a plurality of electrodes and a plurality of electrode contacts to induce arc-discharging between the electricity receiving
rods and the raw material received in the rotary reactor. To reliably prevent the temperature of the steam atmosphere from being abnormally elevated, carbon dioxide gas is introduced into a carbonizing chamber of the rotary reactor via a gas inflow pipe. To rotatably support the rotary reactor, the gas inflow pipe, a steam inflow pipe and a temperature sensor pipe, a rotary joint is disposed at the position located outside of a side wall of the rotary reactor. Nitrogen gas may be substituted for the carbon dioxide gas in order to attenuate the endothermic reaction arising in the rotary reactor. In addition, used active carbon particles can be re-activated in the carbonizing chamber of the rotary reactor by feeding electricity to the used active carbon particles via the electricity receiving rods.
5424051 PROCESS FOR THE REMOVAL OF CARBON DIOXIDE AND MERCAPTANS FROM A GAS STREAM Nagji Moez M; Clark Keith R, Raymond Robert F Rolling Meadows, IL, UNITED STATES Assigned to UOP This invention relates to a process for treating a feed gas stream containing CO2 and mercaptans by contacting the feed gas stream with a COQ.elective adsorbent under conditions effective to produce a COz-depleted feed gas stream which is thereafter subjected to contact with an alkaline scrubbing solution under mercaptan absorption conditions effective to produce a mercaptan- and a product stream and a COz-depleted gas mercaptide-containing scrubbing solution. At least a portion of the product gas stream may be utilized to regenerate the COQelective adsorbent and the mercaptide-containing scrubbing solution may be regenerated by contacting same with oxygen in the presence of an oxidation catalyst.
5424089 CARBONATED MAPLE SAP AND METHOD OF MAKING SAME Munch Richard F; Munch Robert F Poultney, VT, 05764, UNITED STATES Maple sap derived from a maple tree is carbonated with carbon dioxide gas to provide carbonated maple sap. A carbonated maple sap product is also provided wherein up to 75% by volume of the naturally occurring water content of the maple sap is removed, preferably to provide a sugar content of the product in the range of from about 2 degrees Brix to about 8 degrees Brix. The product may additionally comprise a flavoring ingredient, such as a fruit flavor, for complementing the maple sap product. The method
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5424034
METHOD AND AN APPARATUS FOR STERILIZING A CONTINUOUS PACKAGING MATERIAL WEB Hilmersson Ander Lund, SWEDEN Assigned to Tetra Lava1 Holdings & Finance SA The disclosure relates to a method and an apparatus for treating, for purposes of sterilization, a continuous material web by bringing the entire web or parts thereof intended for sterilization into contact with liquefied hydrogen peroxide and thereafter drying the web with the aid of a hot gaseous fluid. In order to improve the degree of destruction of micro-organisms present on the material web, the material web is dried, after contact with the liquefied hydrogen peroxide, with air which has been intentionally supplied with hydrogen peroxide. The apparatus for carrying out the method displays an elongate space fitted with inlet and outlet for the material web, through which space the material web is disposed to be led, and an outer flow duct disposed in communication with the inlet and the outlet and provided with means for supplying hot hydrogen peroxide-free air for mixing with a portion of the hydrogen peroxide-containing air after the drying operation, and recycling of the mixed, hydrogen peroxide-containing air through the elongate space in the direction of movement of the material web for a new drying cycle.
5424039 METHOD AND APPARATUS FOR PRODUCING ACTIVE CARBON BY FEEDING ELECTRICITY TO ROTARY REACTOR Hiral Yoji Omiya City, JAPAN Assigned to Helyo Shoji Kabushiki Kaisha To produce active carbon particles by carbonizing a carbon based raw material in a steam atmosphere while feeding electricity to the raw material received in a rotary reactor, a plurality of electrical receiving rods are secured to the inner wall surface of a cylindrical wall of the rotary reactor in the equally-spaced relationship as seen in the circumferential direction. In operation, a certain intensity of electric current is fed to the electricity receiving rods via a plurality of electrodes and a plurality of electrode contacts to induce arc-discharging between the electricity receiving
rods and the raw material received in the rotary reactor. To reliably prevent the temperature of the steam atmosphere from being abnormally elevated, carbon dioxide gas is introduced into a carbonizing chamber of the rotary reactor via a gas inflow pipe. To rotatably support the rotary reactor, the gas inflow pipe, a steam inflow pipe and a temperature sensor pipe, a rotary joint is disposed at the position located outside of a side wall of the rotary reactor. Nitrogen gas may be substituted for the carbon dioxide gas in order to attenuate the endothermic reaction arising in the rotary reactor. In addition, used active carbon particles can be re-activated in the carbonizing chamber of the rotary reactor by feeding electricity to the used active carbon particles via the electricity receiving rods.
5424051 PROCESS FOR THE REMOVAL OF CARBON DIOXIDE AND MERCAPTANS FROM A GAS STREAM Nagji Moez M; Clark Keith R, Raymond Robert F Rolling Meadows, IL, UNITED STATES Assigned to UOP This invention relates to a process for treating a feed gas stream containing CO2 and mercaptans by contacting the feed gas stream with a COQ.elective adsorbent under conditions effective to produce a COz-depleted feed gas stream which is thereafter subjected to contact with an alkaline scrubbing solution under mercaptan absorption conditions effective to produce a mercaptan- and a product stream and a COz-depleted gas mercaptide-containing scrubbing solution. At least a portion of the product gas stream may be utilized to regenerate the COQelective adsorbent and the mercaptide-containing scrubbing solution may be regenerated by contacting same with oxygen in the presence of an oxidation catalyst.
5424089 CARBONATED MAPLE SAP AND METHOD OF MAKING SAME Munch Richard F; Munch Robert F Poultney, VT, 05764, UNITED STATES Maple sap derived from a maple tree is carbonated with carbon dioxide gas to provide carbonated maple sap. A carbonated maple sap product is also provided wherein up to 75% by volume of the naturally occurring water content of the maple sap is removed, preferably to provide a sugar content of the product in the range of from about 2 degrees Brix to about 8 degrees Brix. The product may additionally comprise a flavoring ingredient, such as a fruit flavor, for complementing the maple sap product. The method
J. Cleaner Prod. Volume 3 Number 4
247