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1. WO2013143377 - METHOD UTILIZING INDUSTRIAL FLUE GAS FOR REMOVING METAL IONS FROM RICE HULLS

Publication Number WO/2013/143377
Publication Date 03.10.2013
International Application No. PCT/CN2013/072165
International Filing Date 05.03.2013
IPC
C01B 33/18 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
33Silicon; Compounds thereof
113Silicon oxides; Hydrates thereof
12Silica; Hydrates thereof, e.g. lepidoic silicic acid
18Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
B82Y 40/00 2011.01
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE  OR TREATMENT OF NANOSTRUCTURES
40Manufacture or treatment of nanostructures
CPC
A23L 5/23
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A23B - A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT
5Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
20Removal of unwanted matter, e.g. deodorisation or detoxification
23by extraction with solvents
A23L 5/276
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A23B - A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT
5Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
20Removal of unwanted matter, e.g. deodorisation or detoxification
27by chemical treatment, by adsorption or by absorption
276Treatment with inorganic compounds
A23L 7/115
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A23B - A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT
7Cereal-derived products; Malt products
10Cereal-derived products
115Cereal fibre products, e.g. bran, husk
A23V 2002/00
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES
2002Food compositions, function of food ingredients or processes for food or foodstuffs
B09B 3/00
BPERFORMING OPERATIONS; TRANSPORTING
09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
BDISPOSAL OF SOLID WASTE
3Destroying solid waste or transforming solid waste ; or contaminated solids; into something useful or harmless
B09B 5/00
BPERFORMING OPERATIONS; TRANSPORTING
09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
BDISPOSAL OF SOLID WASTE
5Operations not covered by single other subclass or by a single other group in this subclass
Applicants
  • 阳光凯迪新能源集团有限公司 SUNSHINE KAIDI NEW ENERGY GROUP CO., LTD. [CN]/[CN]
Inventors
  • 陈义龙 CHEN, Yilong
  • 张岩丰 ZHANG, Yanfeng
  • 陶磊明 TAO, Leiming
  • 罗文学 LUO, Wenxue
  • 王志龙 WANG, Zhilong
  • 罗志相 LUO, Zhixiang
  • 薛永杰 XUE, Yongjie
Agents
  • 武汉开元知识产权代理有限公司 WUHAN KAIYUAN INTELLECTUAL PROPERTY AGENT LTD.
Priority Data
201210082138.126.03.2012CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD UTILIZING INDUSTRIAL FLUE GAS FOR REMOVING METAL IONS FROM RICE HULLS
(FR) PROCÉDÉ D'UTILISATION DE GAZ DE COMBUSTION INDUSTRIEL POUR ÉLIMINER LES IONS MÉTALLIQUES DE BALLES DE RIZ
(ZH) 利用工业烟气去除稻壳中金属离子的方法
Abstract
(EN)
A method utilizing an industrial flue gas for removing metal ions from rice hulls. A gas dispersion apparatus used for discharging the industrial flue gas is arranged at the bottom of a water-filled reaction tank. The rice hulls are bagged and thrown into the water-filled reaction tank. The bagged rice hulls are pressed into water. Then, the industrial flue gas is injected into the tank by the gas dispersion apparatus. The water pressure in the water-filled reaction tank is utilized to increase the water solubility of carbon dioxide in the industrial flue gas. A carbonate solution produced reacts with the metal ions in the rice hulls to produce a precipitate. When the reaction is completed, the rice hulls are rinsed then rinsed and pressed with salt water to remove the metal ions that are attached onto the rice hulls. The method introduces into water the industrial flue gas to dissolve carbon dioxide contained therein into water to produce carbonic acid, and utilizes the carbonic acid to react with the rice hulls immersed in water, thus achieving the goal of removing the metal ions from the rice hulls. The method has the circular economy features of low pollution, low energy consumption, and high efficiency.
(FR)
La présente invention concerne un procédé utilisant un gaz de combustion industriel pour éliminer les ions métalliques de balles de riz. Un appareil de dispersion de gaz utilisé pour décharger le gaz de combustion industriel est agencé au fond de la cuve de réaction remplie d'eau. Les balles de riz sont ensachées et jetées dans la cuve de réaction remplie d'eau. Les balles de riz ensachées sont pressées dans l'eau. Ensuite, le gaz de combustion industriel est injecté dans la cuve par l'appareil de dispersion de gaz. La pression hydraulique dans la cuve de réaction remplie d'eau est utilisée pour augmenter l'hydrosolubilité du dioxyde de carbone dans le gaz de combustion industriel. Une solution de carbonate produite réagit avec les ions métalliques dans les balles de riz pour produire un précipité. Lorsque la réaction est terminée, les balles de riz sont rincées, puis rincées et pressées avec de l'eau salée pour éliminer les ions métalliques qui sont fixés sur les balles de riz. Le procédé introduit dans l'eau le gaz de combustion industriel pour dissoudre le dioxyde de carbone contenu dans celui-ci dans de l'eau pour produire de l'acide carbonique, et utilise l'acide carbonique pour réagir avec les balles de riz immergées dans l'eau, de manière à atteindre l'objectif d'élimination des ions métalliques des balles de riz. Le procédé présente les caractéristiques d'économie circulaire de faible pollution, de faible consommation d'énergie, et d'efficacité élevée.
(ZH)
一种利用工业烟气去除稻壳中金属离子的方法,在蓄水反应池底部设有用于排放工业烟气的气体分散装置,将稻壳装袋并抛入蓄水反应池内,将袋装稻壳压入水面下,然后由气体分散装置将工业烟气喷入池内,利用蓄水反应池内的水压,使工业烟气中的二氧化碳在水中溶解度增大,生产的碳酸溶液和稻壳中的金属离子发生反应生产沉淀物,反应完毕后,清洗稻壳并用无盐水清洗挤压,脱去稻壳上吸附的金属离子。该方法将工业烟气通入水中使它含有的二氧化碳溶于水形成碳酸,利用碳酸和浸泡在水中的稻壳发生反应,达到去除稻壳中金属离子的目的,该方法具有低污染、低能耗、高效益的循环经济特点。
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