A sequential process for hydrogen production based on continuous HDPE fast pyrolysis and in-line steam reforming

被引：133

作者：

Barbarias, Itsaso ^{[1
]}

Lopez, Gartzen ^{[1
]}

Alvarez, Jon ^{[1
]}

Artetxe, Maite ^{[1
]}

Arregi, Aitor ^{[1
]}

Bilbao, Javier ^{[1
]}

Olazar, Martin ^{[1
]}

机构：

[1] Univ Basque Country, Dept Chem Engn, UPV EHU, POB 644, E-48080 Bilbao, Spain

来源：

CHEMICAL ENGINEERING JOURNAL | 2016年 / 296卷

关键词：

Hydrogen; Pyrolysis; Reforming; Plastic waste; Conical spouted bed; Ni catalyst; CONICAL SPOUTED BED; MUNICIPAL SOLID-WASTE; FLUIDIZED-BED; PLASTIC WASTE; FIXED-BED; BIO-OIL; FLASH PYROLYSIS; LIGHT OLEFINS; GASIFICATION; REACTOR;

D O I：

10.1016/j.cej.2016.03.091

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A continuous process has been developed consisting in the flash pyrolysis (500 degrees C) of high density polyethylene (HDPE) in a conical spouted bed reactor (CSBR) followed by steam reforming in a fluidized bed reactor (Ni commercial catalyst). The effect reforming temperature in the 600-700 degrees C range, space time from 2.1 to 20.8 scat min g(HDPE)(-1) and steam/plastic ratio between 3 and 5 have on product yields and gas composition has been studied. The continuous pyrolysis-reforming process performs well, with no operational problems and attaining complete HDPE conversion. Under the optimum conditions, i.e., 700 degrees C, space time 16.7 g(cat) min g(HDPE)(-1) and steam/plastic of ratio 5, the H-2 yield was 92.5% of that corresponding to stoichometry, which accounts for a H-2 production of 38.1 g per 100 g of HDPE in the feed. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：191 / 198

页数：8

共 45 条

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