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1. 发明申请

US20100275908A1 METHOD FOR PREPARING MAIN HYDROLYSATE BY HYDROLYZING PLANT CELLULOSE MATERIALS WITH CONCENTRATED SULFURIC ACID 有权
标题翻译：用浓缩硫酸制备植物纤维素材料制备主要水解产物的方法
公开(公告)号：US20100275908A1
公开(公告)日：2010-11-04
申请号：US12678735
申请日：2008-07-29
申请人： Peihao Chen
发明人： Peihao Chen
IPC分类号： C08B37/00
CPC分类号： C07H1/00 , C07H3/06 , C13K1/02
摘要： The present invention relates to a method to dispose plant cellulose materials, in particular to a method for preparing a main hydrolysate by hydrolyzing the plant cellulose materials with concentrated sulfuric acid. The plant cellulose materials are mixed with sulfuric acid in batches, and the main hydrolysate is obtained after hydrolysis. The batch mixing includes the following procedures: (1)sulfuric acid solution is used to dissolve part of the plant cellulose materials thereby forming a hydrolysate; (2)when the plant cellulose materials can not be dissolved any more, concentrated sulfuric acid with the concentration more than 80 wt % is successively added into the hydrolysate, and another part of the plant cellulose materials are added; (3)and then the procedure as step (2) is repeated until all the plant cellulose materials are completely hydrolyzed. The method utilizing concentrated sulfuric acid to prepare the main hydrolysate can hydrolyze the maximum cellulose with the least sulfuric acid, thereby decreasing the acid recovery cost proportioned by per kilogram sugar obtained by hydrolysis.
摘要翻译：本发明涉及一种处理植物纤维素材料的方法，特别涉及通过用浓硫酸水解植物纤维素材料来制备主要水解产物的方法。将植物纤维素材料分批与硫酸混合，水解后得到主要水解产物。分批混合包括以下步骤：（1）硫酸溶液用于溶解部分植物纤维素材料，从而形成水解产物; （2）当植物纤维素材料不再溶解时，将浓度超过80重量％的浓硫酸依次加入到水解产物中，并加入另一部分植物纤维素材料; （3），然后重复步骤（2）的步骤，直到所有植物纤维素材料完全水解。利用浓硫酸制备主要水解产物的方法可以用最少硫酸水解最大纤维素，从而降低通过水解获得的每千克糖成比例的酸回收成本。

2. 发明授权

US08603251B2 Method for preparing main hydrolysate by hydrolyzing plant cellulose materials with concentrated sulfuric acid 有权
标题翻译：用浓硫酸水解植物纤维素材料制备主要水解产物的方法
公开(公告)号：US08603251B2
公开(公告)日：2013-12-10
申请号：US12678735
申请日：2008-07-29
申请人： Peihao Chen
发明人： Peihao Chen
IPC分类号： C13K1/02
CPC分类号： C07H1/00 , C07H3/06 , C13K1/02
摘要： The present invention relates to a method to dispose plant cellulose materials, in particular to a method for preparing a main hydrolysate by hydrolyzing the plant cellulose materials with concentrated sulfuric acid. The plant cellulose materials are mixed with sulfuric acid in batches, and the main hydrolysate is obtained after hydrolysis. The batch mixing includes the following procedures: (1) sulfuric acid solution is used to dissolve part of the plant cellulose materials thereby forming a hydrolysate; (2) when the plant cellulose materials can not be dissolved any more, concentrated sulfuric acid with the concentration more than 80 wt % is successively added into the hydrolysate, and another part of the plant cellulose materials are added; (3) and then the procedure as step (2) is repeated until all the plant cellulose materials are completely hydrolyzed. The method utilizing concentrated sulfuric acid to prepare the main hydrolysate can hydrolyze the maximum cellulose with the least sulfuric acid, thereby decreasing the acid recovery cost proportioned by per kilogram sugar obtained by hydrolysis.
摘要翻译：本发明涉及一种处理植物纤维素材料的方法，特别涉及通过用浓硫酸水解植物纤维素材料来制备主要水解产物的方法。将植物纤维素材料分批与硫酸混合，水解后得到主要水解产物。分批混合包括以下步骤：（1）硫酸溶液用于溶解部分植物纤维素材料，从而形成水解产物; （2）当植物纤维素材料不再溶解时，将浓度超过80重量％的浓硫酸依次加入到水解产物中，并加入另一部分植物纤维素材料; （3），然后重复步骤（2）的步骤，直到所有植物纤维素材料完全水解。利用浓硫酸制备主要水解产物的方法可以用最少硫酸水解最大纤维素，从而降低通过水解获得的每千克糖成比例的酸回收成本。

3. 外观设计

USD941777S1 Plug 有权
公开(公告)号：USD941777S1
公开(公告)日：2022-01-25
申请号：US29747666
申请日：2020-08-24
申请人： Peihao Chen
设计人： Peihao Chen

4. 发明授权

US08052953B2 Method for recovering sulfuric acid from concentrated acid hydrolysate of plant cellulose material 有权
标题翻译：从植物纤维素材料的浓酸水解产物中回收硫酸的方法
公开(公告)号：US08052953B2
公开(公告)日：2011-11-08
申请号：US12678634
申请日：2008-07-29
申请人： Peihao Chen
发明人： Peihao Chen
IPC分类号： C01B17/74 , C07H1/06 , C07H1/08 , C13K1/02
CPC分类号： C13K1/02 , C01B17/90 , C01B17/903
摘要： A method for recovering sulfuric acid from concentrated acid hydrolysate of plant cellulose material is disclosed. In some of the examples, the concentrated acid hydrolysate is mixed with a liquid organic precipitant, with the sugars in the hydrolysate being precipitated and separated out. The remainder is sulfuric acid and an organic solvent solution. The organic solvent is then separated by distillation or extraction, thereby obtaining the pure sulfuric acid solution. This precipitation method can recover above 90% sugars and acids with a small amount of organic precipitant, which greatly reduces the recovery cost.
摘要翻译：公开了从植物纤维素材料的浓酸水解产物中回收硫酸的方法。在一些实施例中，将浓缩的酸水解产物与液体有机沉淀剂混合，水解产物中的糖被沉淀并分离出来。其余为硫酸和有机溶剂溶液。然后通过蒸馏或萃取分离有机溶剂，由此得到纯硫酸溶液。该沉淀法可以回收90％以上的糖和酸，少量的有机沉淀剂，大大降低了回收成本。

5. 发明申请

US20100284900A1 METHOD FOR RECOVERING SULFURIC ACID FROM CONCENTRATED ACID HYDROLYSATE OF PLANT CELLULOSE MATERIAL 有权
标题翻译：用于从植物纤维素材料的浓缩酸水解产物中回收硫酸的方法
公开(公告)号：US20100284900A1
公开(公告)日：2010-11-11
申请号：US12678634
申请日：2008-07-29
申请人： Peihao Chen
发明人： Peihao Chen
IPC分类号： C01B17/90
CPC分类号： C13K1/02 , C01B17/90 , C01B17/903
摘要： A method for recovering sulfuric acid from concentrated acid hydrolysate of plant cellulose material is disclosed. In some of the examples, the concentrated acid hydrolysate is mixed with a liquid organic precipitant, thereby the sugars in the hydrolysate is precipitated and separated out, and the remained is sulfuric acid and an organic solvent solution. Then the organic solvent is separated by distillation or extraction, thereby obtaining the pure sulfuric acid solution. This precipitation method can recover above 90% sugars and acids with a small amount of organic precipitant, which greatly reduces the recover cost. In the other examples, the method includes: mixing the concentrated acid hydrolysate with a water-immiscible alcohol, thereby separating the sugars with a remainder of acid-alcohol solution containing sulfuric acid; contacting the acid-alcohol solution with water, thereby the sulfuric acid enters into the water phase from the organic phase; then separating the organic phase and the water phase, thereby obtaining the sulfuric acid solution. This method avoids the use of poisonous, inflammable and explosive organic solvents and also avoids the energy consumption for recovering these organic solvents, thereby greatly reducing the cost of acid recovery.
摘要翻译：公开了从植物纤维素材料的浓酸水解产物中回收硫酸的方法。在一些实施例中，将浓缩的酸水解产物与液体有机沉淀剂混合，从而使水解产物中的糖沉淀并分离出来，剩下的是硫酸和有机溶剂溶液。然后通过蒸馏或萃取分离有机溶剂，从而得到纯硫酸溶液。该沉淀法可以回收90％以上的糖和酸，少量的有机沉淀剂，大大降低了回收成本。在其他实施例中，该方法包括：将浓酸水解物与水不混溶的醇混合，从而将糖与剩余的含有硫酸的酸 - 醇溶液分离; 使酸 - 醇溶液与水接触，从而使硫酸从有机相进入水相; 然后分离有机相和水相，从而得到硫酸溶液。该方法避免使用有毒，易燃易爆的有机溶剂，并避免回收这些有机溶剂的能量消耗，从而大大降低酸回收成本。

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