All Outputs (53)

Progress in the CO2 Capture Technologies for Fluid Catalytic Cracking (FCC) Units—A Review (2020)
Journal Article

© Copyright © 2020 Güleç, Meredith and Snape. Heavy industries including cement, iron and steel, oil refining, and petrochemicals are collectively responsible for about 22% of global CO2 emissions. Among these industries, oil refineries account for 4... Read More about Progress in the CO2 Capture Technologies for Fluid Catalytic Cracking (FCC) Units—A Review.

Demonstrating the applicability of chemical looping combustion for the regeneration of fluid catalytic cracking catalysts (2020)
Journal Article

© 2020 Elsevier B.V. Fluid Catalytic Cracking (FCC) units are responsible for roughly 25% of CO2 emissions from oil refineries, which themselves account for 4–6% of total global CO2 emissions. Although post- and oxy-combustion technologies have been... Read More about Demonstrating the applicability of chemical looping combustion for the regeneration of fluid catalytic cracking catalysts.

Cyclic performance evaluation of a polyethylenimine/silica adsorbent with steam regeneration using simulated NGCC flue gas and actual flue gas of a gas-fired boiler in a bubbling fluidized bed reactor (2020)
Journal Article

To accelerate the deployment of Carbon Capture and Storage (CCS) based on the solid amine adsorbents towards a practical scale application relevant to Natural Gas Combined Cycle (NGCC) power plants, this study has evaluated the cyclic performance of... Read More about Cyclic performance evaluation of a polyethylenimine/silica adsorbent with steam regeneration using simulated NGCC flue gas and actual flue gas of a gas-fired boiler in a bubbling fluidized bed reactor.

Pore structural evolution of shale following thermochemical treatment (2019)
Journal Article

Shales experience heat treatment concurrent with the presence of water or steam during reservoir engineering interventions, such as high pressure water fracking and in-situ combustion of hydrocarbons. This work utilises a novel technique, which is a... Read More about Pore structural evolution of shale following thermochemical treatment.

Shale gas reserve evaluation by laboratory pyrolysis and gas holding capacity consistent with field data (2019)
Journal Article

Exploration for shale gas occurs in onshore basins, with two approaches used to predict the maximum gas in place (GIP) in the absence of production data. The first estimates adsorbed plus free gas held within pore space, and the second measures gas y... Read More about Shale gas reserve evaluation by laboratory pyrolysis and gas holding capacity consistent with field data.

Selective low temperature chemical looping combustion of higher alkanes with Cu- and Mn- oxides (2019)
Journal Article

Chemical looping combustion (CLC) of n-hexadecane and n-heptane with copper and manganese oxides (CuO and Mn2O3) has been investigated in a fixed bed reactor to reveal the extent to which low temperature CLC can potentially be applicable to hydrocarb... Read More about Selective low temperature chemical looping combustion of higher alkanes with Cu- and Mn- oxides.

A novel approach to CO2 capture in Fluid Catalytic Cracking-Chemical Looping Combustion (2019)
Journal Article

Oil refineries collectively account for about 4–6% of global CO2 emissions and Fluid Catalytic Cracking (FCC) units are responsible for roughly 25% of these. Although post-combustion and oxy-combustion have been suggested to capture CO2 released from... Read More about A novel approach to CO2 capture in Fluid Catalytic Cracking-Chemical Looping Combustion.

Continuous testing of silica-PEI adsorbents in a lab.-scale twin bubbling fluidized-bed system (2019)
Journal Article

In this study, a lab.-scale twin bubbling fluidized-bed system (TBS) has been used continuously to test the performance for CO2 adsorption of silica-PEI (S.PEI) adsorbents, containing 40 wt.% of PEI, which were supplied by the University of Nottingha... Read More about Continuous testing of silica-PEI adsorbents in a lab.-scale twin bubbling fluidized-bed system.

Evaluating the effect of biochar addition on the anaerobic digestion of swine manure: application of Py-GC/MS (2018)
Journal Article

The anaerobic digestion process of swine manure was studied when char was used as supplement for improving performance. The use of pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) was proposed for assessing the organic matter degradation. Th... Read More about Evaluating the effect of biochar addition on the anaerobic digestion of swine manure: application of Py-GC/MS.

The impact of hydrothermal carbonisation on the char reactivity of biomass (2018)
Journal Article

Hydrothermal carbonisation (HTC) is an attractive biomass pre-treatment as it produces a coal-like fuel, can easily process wet biomass and wastes, and lowers the risk of slagging and fouling in pulverised fuel (PF) combustion boilers. One of the maj... Read More about The impact of hydrothermal carbonisation on the char reactivity of biomass.

High density and super ultra-microporous-activated carbon macrospheres with high volumetric capacity for CO2 capture (2017)
Journal Article

Activated carbon (AC) spheres with a diameter of 1.0–2.0 mm are synthesized from coal tar pitch for postcombustion carbon capture. The as-prepared AC macrospheres after KOH activation are found to possess extraordinarily developed microporosity of wh... Read More about High density and super ultra-microporous-activated carbon macrospheres with high volumetric capacity for CO2 capture.

Fly ash-derived MCM-41 as a low-cost silica support for polyethyleneimine in post-combustion CO2 capture (2017)
Journal Article

The mesoporous silicate molecular sieve, MCM-41, has been synthesized from pulverized coal fly ash (PFA), where the silicate filtrate used is a by-product from hydrothermal zeolite production. Rice husk ash was also used for comparison but fusion wit... Read More about Fly ash-derived MCM-41 as a low-cost silica support for polyethyleneimine in post-combustion CO2 capture.

Advances on transition metal oxides catalysts for formaldehyde oxidation: a review (2017)
Journal Article

This review highlights recent advances in the development of transition metal based catalysts for formaldehyde oxidation, particularly the enhancement of their catalytic activity for low temperature oxidation. Various factors that enhance low tempera... Read More about Advances on transition metal oxides catalysts for formaldehyde oxidation: a review.

Mechanical degradation of biomass wood pellets during long term stockpile storage (2017)
Journal Article

This paper quantifies and assesses the mechanical degradation of white wood and steam exploded wood pellets in indoor and outdoor stockpile storage over a twenty-one month period in the UK. The indoor stored steam exploded wood pellets on the surface... Read More about Mechanical degradation of biomass wood pellets during long term stockpile storage.

Increased charcoal yield and production of lighter oils from the slow pyrolysis of biomass (2017)
Journal Article

In an effort to reduce CO2 emissions from solid fuels, a considerable amount of research is going into how improve the manufacturing processes and product properties of the products from pyrolysis. One aspect that is often overlooked is the productio... Read More about Increased charcoal yield and production of lighter oils from the slow pyrolysis of biomass.

Process simulations of post-combustion CO 2 capture for coal and natural gas-fired power plants using a polyethyleneimine/silica adsorbent (2016)
Journal Article

The regeneration heat for a polyethyleneimine (PEI)/silica adsorbent based carbon capture system is first assessed in order to evaluate its effect on the efficiency penalty of a coal or natural gas power plant. Process simulations are then carried ou... Read More about Process simulations of post-combustion CO 2 capture for coal and natural gas-fired power plants using a polyethyleneimine/silica adsorbent.

Aerosol composition and sources during high and low pollution periods in Ningbo, China (2016)
Journal Article

Due to the rapid industrialization of the Yangtze River Delta (YRD) region in China, heavy air pollution episodes have occurred frequently over the past five years which are of great concern due to their environmental and health impacts. To investiga... Read More about Aerosol composition and sources during high and low pollution periods in Ningbo, China.

Retardation of oil cracking to gas and pressure induced combination reactions to account for viscous oil in deep petroleum basins: Evidence from oil and n-hexadecane pyrolysis at water pressures up to 900bar (2016)
Journal Article

This study reports a laboratory pyrolysis experimental study on oil and n-hexadecane to rationalise the thermal stability of oil in deep petroleum reservoirs. Using a 25 ml Hastelloy pressure vessel, a 35° API North Sea oil (Oseberg) and n-hexadecane... Read More about Retardation of oil cracking to gas and pressure induced combination reactions to account for viscous oil in deep petroleum basins: Evidence from oil and n-hexadecane pyrolysis at water pressures up to 900bar.

Changes in the mechanical properties of biomass wood pellets during artificial degradation in a laboratory environment (2016)
Journal Article

In stockpiles exposed to high relative humidity (RH) and rainfall, woody biomass pellets lose structural integrity, often assumed to be due to the uptake of moisture from the environment. In this study three different types of biomass pellet were art... Read More about Changes in the mechanical properties of biomass wood pellets during artificial degradation in a laboratory environment.

Thermal Cracking of Oil under Water Pressure up to 900 bar at High Thermal Maturities. 1. Gas Compositions and Carbon Isotopes (2016)
Journal Article

In this study, a C9+ fraction of saturate-rich Tertiary source rock-derived oil from the South China Sea basin was pyrolyzed in normal and supercritical water using a 25 mL vessel at a range of temperature from 350 to 425 °C for 24 h, to probe pressu... Read More about Thermal Cracking of Oil under Water Pressure up to 900 bar at High Thermal Maturities. 1. Gas Compositions and Carbon Isotopes.