Dynamic Modeling and Control of Integrated Coal Gasification Combined Cycle Units

Design of a life-cycle chain from biomass acquisition and transport to the production sythesis gas for Shell Middle Distillate Products through lagre-scale gasification of biomass in the Rotterdam Harbour area

Document(en) uit de collectie Chemische Procestechnologie

PHB production in a Dutch setting: Design of a process to produce 1000 tonnes per annum of polyhydroxybutyrate (PHB) from waste wood in a Dutch setting

Nitrogen compounds in pressurised fluidised bed gasification of biomass and fossil fuels

Fossil fuels still dominate the energy supply in modern societies. The resources, however, are depleting. Therefore, other energy sources are to be exploited further within this century. Biomass is one of the practically CO2 neutral, renewable contributors to the future energy production. Nowadays many modern, high efficiency (combined) power...

A novel 'green' process for cheaper production of furfural from biomass

Mercury speciation in pulverized fuel co-combustion and gasification

Coal based power generation is a significant source of mercury emissions to the atmosphere and this has attracted huge attention in the past decade. Recently, the concerns regarding global warming and need for new energy resources introduced the concept of cofiring of biomass and waste as secondary fuels in the power industry. The addition of a...

Fluidized Bed Gasification as a Mature And Reliable Technology for the Production of Bio-Syngas and Applied in the Production of Liquid Transportation Fuels: A Review

Biomass is one of the renewable and potentially sustainable energy sources and has many possible applications varying from heat generation to the production of advanced secondary energy carriers. The latter option would allow mobile services like the transportation sector to reduce its dependency on the fossil fuel supply. This article reviews...

On the gasification of biomass in a steam-oxygen blown CFB gasifier with the focus on gas quality upgrading: Technology background, experiments and mathematical modeling

This work presents and discusses the results of the research on the gasification of biomass in an atmospheric circulating fluidized bed, with a mixture of steam and oxygen as fluidization / gasification medium. The main objectives of this research were to investigate and improve the gasification process in order to produce hydrogen-rich gas from...

The Development of a Gasification-Stove for the Rural Poor in Vietnam

Vietnam’s economy is largely agricultural, with rice being the most cultivated crop. Apart from the rice itself, being the most important food source in Asia, the production also creates a great amount of waste. Currently, this ‘waste’ is simply burned on-site since that is the easiest solution for the farmers to get rid of it. However, the low...

Designing a user-friendly gasification-stove for the rural population in Vietnam

The Master Thesis presents the design of a cook stove that uses biomass such as rice husk to cook. This cook stoves called gasifiers are an alternative to fossil fuel cook stoves in rural areas since the smoke generated by fossil fuels stove comprises a variety of health-damaging pollutants. The gasifier presented in this report was designed...

Supercritical Water Gasification of Biomass: A Literature and Technology Overview

The supercritical water gasification process is an alternative to both conventional gasification as well as anaerobic digestion as it does not require drying and the process takes place at much shorter residence times; a few minutes at most. The drastic changes in the thermo-physical properties of water from the liquid state to the supercritical...

Supercritical Water Gasification of Wet Biomass: Modeling and Experiments

In the following decades, biomass will play an important role among the other renewable energy sources globally as it is already the fourth largest energy resource after coal, oil and natural gas. It is possible to obtain gaseous, liquid or solid biofuels from biomass via thermochemical or biochemical conversion routes. Among them, gasification...

Artificial neural networks for determining the optimal process conditions of a gasification process

Circulating fluidized bed of biomass gasification: Product compound prediction by application of a constrained equilibrium model

Biomass as a renewable energy resource and a carbon neutral feedstock has a big potential to replace fossil fuel. Gasification as one of thermochemical process routes in biomass utilization draws attention with regards to its broad product range. The circulating fluidized bed with the advantages of higher and rapid conversion performs as the...

Converting Waste Toilet Paper into Electricity: A First-Stage Technoeconomic Feasibility Study

We studied the possibility of converting waste toilet paper (WTP) into electricity. WTP is a waste stream with continuous availability and negative cost, but it is difficult to handle, as it contains fecal matter. The process we explored had two stages: WTP gasification followed by direct conversion into electricity in a high-temperature...