Improved TGA-MS measurements for evolved gas analysis (EGA) during pyrolysis process of various biomass feedstocks. Syngas energy balance determination

被引：25

作者：

Radojevic, Milos ^{[1
]}

Jankovic, Bojan ^{[2
]}

Stojiljkovic, Dragoslava ^{[1
]}

Jovanovic, Vladimir ^{[1
]}

Cekovic, Ivana ^{[3
]}

Manic, Nebojsa ^{[1
]}

机构：

[1] Univ Belgrade, Fuel & Combust Lab, Fac Mech Engn, Kraljice Marije 16,POB 35, Belgrade 11120, Serbia

[2] Univ Belgrade, Dept Phys Chem, Vinca Inst Nucl Sci, Natl Inst Republ Serbia, Mike Petrovica Alasa 12-14,POB 522, Belgrade 11001, Serbia

[3] Fac Mech Engn, Innovat Ctr, Kraljice Marije 16,POB 35, Belgrade 11120, Serbia

来源：

THERMOCHIMICA ACTA | 2021年 / 699卷

关键词：

Biomass; Evolved gas analysis; TGA-MS; Ionic reaction mechanism; Syngas energy capacity; SPENT COFFEE GROUNDS; MASS-SPECTROMETRIC ANALYSIS; WET SEWAGE-SLUDGE; CO-PYROLYSIS; WHEAT-STRAW; LIGNOCELLULOSIC BIOMASS; THERMAL-DECOMPOSITION; PROXIMATE ANALYSIS; HIGH-TEMPERATURE; FTIR ANALYSIS;

D O I：

10.1016/j.tca.2021.178912

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper provides in-depth knowledge about the evolved gas analysis interpretation via newly proposed semi-quantitative approach, arising from thermogravimetric analysis (TGA) - mass spectrometry (MS) coupled measurements, for studying pyrolysis behavior of three kinds of biomass waste materials (spent coffee grounds, beech sawdust and wheat straw). TGA - MS coupling allows accurate correlation between molecular ion peak and fragment peaks to the corresponding mass loss rates from derivative thermogravimetry curves. Within proposed semi-quantitative analysis, MS spectra were interpreted through the comparative analysis of compounds fragments and of the compound itself, where the single atomic mass unit was identified by multiple compounds exhibition. It was shown that by this procedure which involves overlapping multiple curves supervising, the identification of gases in volatiles complex scheme becomes more simplified. By setting up semi-quantitative formulas, easy and reliable calculations of gaseous products yield and syngas energy capacities are possible to achieve. The H-2/CO ratio derived from the proposed method for wood waste product (sawdust) is in an excellent agreement with H-2/CO ratio for sawdust syngas production, in fuel reactor for biomass gasification and H-2 production.

引用

页数：15