A Review on the Transformation of Furfural Residue for Value-Added Products

Yong Sun,Changyu Liu,Jingbo Qu,Zhi Wang,Bin Qu,Yuyingnan Liu,Xianghui Meng

doi:10.3390/en13010021

Abstract

As a by-product of lignocellulosic depolymerization for furfural production, furfural residue (FR) is composed of residual cellulose, lignin, humic acid, and other small amounts of materials, which have high reuse value. However, due to the limitation of furfural production scale and production technology, the treatment of FR has many problems such as high yield, concentrated stacking, strong acidity, and difficult degradation. This leads to the limited treatment methods and high treatment cost of furfural residue. At present, most of the furfural enterprises can only be piled up at will, buried in soil, or directly burned. The air, soil, and rivers are polluted and the ecological balance is destroyed. Therefore, how to deal with furfural residue reasonably needs to be solved. In this review, value-added products for furfural residue conversion are described in detail in the fields of soil culture, catalytic hydrolysis, thermal decomposition, and porous adsorption. The future studies reporting the FR to convert value-added products could find guidance from this review to achieve specific goals.

Highlights

Furfural, which is known as furan formaldehyde (C5 H4 O2 ), is a high-value platform molecular chemical in the separation and synthesis industry, which can be obtained by high temperature depolymerization and dehydration distillation of lignocellulose like corncob in acidic medium [1]
The comprehensive analysis of the results shows that the furfural residue has a certain adsorption effect as a biomass adsorption material
As a by-product of furfural production, furfural residue (FR) has been well studied in soil culture, catalytic hydrolysis, thermal decomposition, and porous adsorption due to its composition and structural characteristics

Summary

Introduction

Furfural, which is known as furan formaldehyde (C5 H4 O2 ), is a high-value platform molecular chemical in the separation and synthesis industry, which can be obtained by high temperature depolymerization and dehydration distillation of lignocellulose like corncob in acidic medium [1]. Rough furfural emerges with hot steam, which is dehydrated and distilled to produce the refined furfural [2]. The remaining solid waste after furfural production is the FR. Energies 2019, 12, x FOR PEER REVIEW Figure.

Methods

Results

Conclusion