The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 01, 2014
Filed:
Nov. 08, 2006
Yilin Tang, Shandong, CN;
Chengzhen Jiang, Shandong, CN;
Shaofeng Gao, Shandong, CN;
Dongsheng LV, Shandong, CN;
Zujiang Shen, Shandong, CN;
Xuanwei Suo, Shandong, CN;
Yilin Tang, Shandong, CN;
Chengzhen Jiang, Shandong, CN;
Shaofeng Gao, Shandong, CN;
Dongsheng LV, Shandong, CN;
Zujiang Shen, Shandong, CN;
Xuanwei Suo, Shandong, CN;
Abstract
A method and system for disposal of furfural wastewater, wherein raw crop material is transported into a hydrolysis reactor after crushed and mixed with acid to be hydrolyzed to form raw furfural liquid, and then said raw furfural liquid is transported into a distillation column to be distilled, during which furfural wastewater is discharged from said distillation column. Firstly said furfural wastewater is transported into a wastewater evaporation system to be heated it into wastewater vapor which is then transported back into said hydrolysis reactor to form recycle of said furfural wastewater. Wastewater vapor residues generated therein can be utilized directly to combust in boiler, mix with acid, or prepare end product acetate. The system for disposal of furfural wastewater comprises at least a wastewater evaporation system connecting with a heat resource which is one of steam, electricity, coal, oil, gas, plant straws or wastewater vapor residues. The present invention further provides a method and system for furfural production utilizing said method and system for disposing the wastewater. The present invention realizes furfural production with no pollution.