Sewage sludge as cheap alternative to microalgae as feedstock of catalytic hydrothermal liquefaction processes

被引：49

作者：

Prestigiacomo, Claudia ^{[1
]}

Costa, Paula ^{[2
]}

Pinto, Filomena ^{[2
]}

Schiavo, Benedetto ^{[1
]}

Siragusa, Angelo ^{[3
]}

Scialdone, Onofrio ^{[1
]}

Galia, Alessandro ^{[1
]}

机构：

[1] Univ Palermo, Dipartimento Innovaz Ind & Digitale, Ingn Chim Gest Informat Meccan, Viale Sci,Ed 6, I-90128 Palermo, Italy

[2] Lab Nacl Energia & Geol IP, Unidade Bioenergia, Estr Paco do Lumiar 22, P-1649038 Lisbon, Portugal

[3] AMAP Spa, 2 Via Volturno, I-90138 Palermo, Italy

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 2019年 / 143卷

关键词：

Microalgae; Sewage sludge; Hydrothermal liquefaction; Heterogeneous catalyst; Biocrude; BIO-OIL; NANNOCHLOROPSIS SP; CHEMICAL-REACTIONS; PRODUCT FRACTIONS; DIESEL FUEL; WASTE; WATER; TEMPERATURE; BIOCRUDE; HYDRODESULFURIZATION;

D O I：

10.1016/j.supflu.2018.08.019

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Production of biocrude through hydrothermal liquefaction (HTL) of sewage sludge (SS) and Chlorella vulgaris was investigated. NiMo/Al2O3 (KF 851), CoMo/Al2O3 (KF 1022) and activated carbon felt, tested as catalysts at 598 K for 30 mm, did not change the biocrude yield but significantly improved its quality. Quantitative sulfur removal and lower oxygen content were found in biocrude when KF 851 and KF 1022 were used with C. vulgaris. The same catalysts decreased O/C and S/C ratio of the biocrude from SS. The highest HHV (38.19 MJ/kg) and H/C ratio (1.65) and the lowest O/C (0.11) of the biocrude from SS were obtained with the cheaper activated carbon felt. A new product phase, probably related to the presence of microplastics in the sludge, was found when SS were converted with catalysts. SS constitute a promising and costless alternative feedstock to microalgae for the HTL processes.

引用

页码：251 / 258

页数：8

共 39 条

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