AMPP Store - Products tagged with 'hydrothermal liquefaction'

Available for download

Corrosion Of Constructional Alloys in Corrodants-Containing Catalytic Hydrothermal Liquefaction Biorefining Conditions

Product Number: 51323-18940-SG

Author: Minkang Liu, Yimin Zeng

Publication Date: 2023

$20.00

In recent decades, the increasing demand of conventional fossil fuel-derived energy and products leads to excessive greenhouse gas emissions. The intensifying environmental awareness and lack of supply in fossil fuel resources has expedited research for finding sustainable, energy secured and environmental-friendly alternatives. Among all the sources, biomass such as wood chips, agricultural crops and wastes, municipal and animal wastes, and specially engineered aquatic plants are commonly considered as potential sources to replace fossil fuels or chemical feedstocks.

Available for download

Corrosion Performance of Candidate Constructional Steels under Batch-mode Hydrothermal Liquefaction (HTL) Conditions

Product Number: 51320-15484-SG

Author: Haoyu Wang, Yimin Zeng, Minkang Liu, Chunbao Charles Xu

Publication Date: 2020

$20.00

Hydrothermal liquefaction (HTL) of wet and waste biomass feedstocks into crude bio-oils and other chemicals has attracted particular attention in Canadian and international clean energy sectors. Until today, very little effort has been employed to address corrosion problems of HTL core components under operation, leading to a significant delay in the construction of industrial-scale HTL plants. In fact, a range of oxygenated, aggressive sulfur and/or chlorinated compounds, as well as organic acids, can be introduced during the conversion at the operating temperature range of 200–400℃, consequently creating highly corrosive environments to the reactor alloys. It is thus important to investigate the performance of alloys exposed to conversion processes to determine the cost-effective construction and long-term safe operation of the HTL plants. In this study, the corrosion resistance of two candidate austenitic stainless steels, including UNS S31000 and UNS S31603, was assessed in a batch reactor containing bamboo feedstock. The corrosion behaviors of the austenitic stainless steels were evaluated using weight change measurement methods and advanced microscopy techniques. To advance corrosion mechanistic understanding, the chemistry of conversion products was also analyzed. This paper is a summary of our most recent results obtained.

Available for download

Corrosion Performance Of Reactor Candidate Alloys During Hydrothermal Liquefaction (HTL) Of Cellulose In A Batch Reactor

Product Number: 51322-18010-SG

Author: Haoyu Wang, Xue Han, Kaiyang Li, Haoyang Li, Minkang Liu, Yimin Zeng, Chunbao Charles Xu

Publication Date: 2022

$20.00

The conversion of forestry/agricultural residues (lignocellulosic biomass) to biofuels or bioproducts has received increasing interest over the past years because of the demand for green products and the fact of abundant residual/waste streams in forestry and agricultural sectors. Forestry/agricultural residues/waste streams are advantageous bioresources to produce biofuels or bio-based chemicals since they do not compete with food resources.¹ Typical conversion technologies involve biochemical and thermochemical processes. Biochemical conversion processes, mainly referring to fermentation of wet carbohydrate materials into bioethanol and anaerobic digestion to generate biogas at ambient operation conditions,² is quite slow and sensitive to operating conditions (pH, temperature, etc.).³

Available for download

Corrosion under Hydrothermal Liquefaction Biorefining Process

Product Number: 51320-15439-SG

Author: Minkang Liu, Yimin Zeng, Xue Han, Jing-Li Luo

Publication Date: 2020

$20.00

The corrosion modes and extents of three candidate alloys (UNS S31603, UNS S31000 and UNS N06625) was investigated under simulated hydrothermal liquefaction (HTL) conditions. The effect of alkaline catalysts (K2CO3), operating pressure and flow rate on corrosion was also examined. Results indicated that the three alloys underwent general oxidation in hot pressurized water, of which SS 316 exhibited worse corrosion resistance compared to SS 310 and Alloy 625. The addition of K2CO3 resulted in a significant increase in the corrosion rates of the alloys, likely due to the formation of soluble metal hydroxides in basic environment. Environmental loop tests showed that higher operating pressure led to a marginal increase in the corrosion rates of SS 310 and Alloy 625. Increasing flow rate from 9 to 15 had no noticeable effect on the corrosion rates of the alloys in hot pressurized water at 310 C and 10 MPa.

Available for download

Effect of Critical Alloying Elements and Impact of Various Corrodants on Steels and Alloys in Catalytic Hydrothermal Liquefaction Biorefining Conditions

Product Number: 51324-21224-SG

Author: Minkang Liu; Yimin Zeng

Publication Date: 2024

$40.00

Hydrothermal liquefaction represents a promising thermochemical technology for the conversion of wet biomass and biowaste streams into bioenergy products. However, the realization of its full potential is impeded by significant knowledge gaps related to corrosion damage experienced by reactors in the conversion environment. In this study, we investigated the influence of alloying elements on corrosion processes through a combination of thermodynamic calculations and autoclave tests. The impact of various amount of corrodants were also assessed. Our findings indicate that chromium plays a dominant role in corrosion resistance in both Fe-based steels and nickel-based alloys. Additionally, the corrosion resistance of a specific nickel-based alloy, UNS N08825, also depends on the existence of corrodants and amount of chromium present, leading to varying performance in different HTL conversion environments.

Available for download

Influence Of Organic Acids Released During Hydrothermal Liquefaction Of Biomass On Corrosion Of Candidate Reactor Alloys

Product Number: 51321-16612-SG

Author: Minkang Liu/ Yimin Zeng/ Xue Han/ Jing-Li Luo

Publication Date: 2021

$20.00

Products tagged with 'hydrothermal liquefaction'

Corrosion Of Constructional Alloys in Corrodants-Containing Catalytic Hydrothermal Liquefaction Biorefining Conditions

Corrosion Performance of Candidate Constructional Steels under Batch-mode Hydrothermal Liquefaction (HTL) Conditions

Corrosion Performance Of Reactor Candidate Alloys During Hydrothermal Liquefaction (HTL) Of Cellulose In A Batch Reactor

Corrosion under Hydrothermal Liquefaction Biorefining Process

Effect of Critical Alloying Elements and Impact of Various Corrodants on Steels and Alloys in Catalytic Hydrothermal Liquefaction Biorefining Conditions

Influence Of Organic Acids Released During Hydrothermal Liquefaction Of Biomass On Corrosion Of Candidate Reactor Alloys

Association for Materials Protection and Performance