Lifecycle Assessment of a Non-Phase-Transition Drying Pyrolysis and Mass Conversion Technology

Yulei Gao,Jikang Jiang,Zheng Shen,Lingjie Zeng,Xu Zhang,Xiaolu Shao

doi:10.3390/en14217394

Abstract

A lifecycle model was established to explore the efficiency, economy, and greenhouse gas emissions of a non-phase-transition drying pyrolysis and mass conversion technology, based on the principle of lifecycle assessment. The evaluation scope included straw collection and transportation, drying and crushing, biomass pyrolysis, charcoal processing, and waste heat utilization. The results show that the energy output/input ratio for non-phase-transition drying pyrolysis was 20.43, and the energy efficiency was high. The pure profit from treating wet straw was USD 45.32 per ton, the profit margin of sales was 52.11%, and the economic benefit was high. The equivalent emission of CO2 was 34.10 g·MJ−1, demonstrating high environmental benefits. Therefore, non-phase-transition drying pyrolysis and mass conversion technology is a potential biomass utilization technology with energy, economic, and ecological benefits.

Highlights

Since the development of a large number of fossil fuels in the industrial revolution, one of the most serious environmental problems caused by the expansion of human production activities, and living areas brought about by the explosion in the global population, is the global greenhouse effect and the resulting climate change
This is due to the rising concentrations of greenhouse gases in the atmosphere, carbon dioxide, which is expected to double by the end of the 21st century [1,2]
The results showed that the carbon monoxide (CO) and PM2.5 emissions in northeast China were 3.63 × 106 and

Summary

Introduction

Since the development of a large number of fossil fuels in the industrial revolution, one of the most serious environmental problems caused by the expansion of human production activities, and living areas brought about by the explosion in the global population, is the global greenhouse effect and the resulting climate change. This is due to the rising concentrations of greenhouse gases in the atmosphere, carbon dioxide, which is expected to double by the end of the 21st century [1,2]. The results showed that the carbon monoxide (CO) and PM2.5 emissions in northeast China were 3.63 × 106 and

Objectives

Results

Conclusion