WorleyParsons Limited is a large Australian provider of project delivery and consulting services to the resources & energy sectors and complex process industries. Services cover the full asset spectrum both in size and lifecycle – from the creation of new assets to services that sustain and enhance operating assets. A comprehensive global network services the customer sector groups to deliver small studies through to mega-projects.The company is an ASX50 company. Wikipedia.
Agency: GTR | Branch: EPSRC | Program: | Phase: Research Grant | Award Amount: 756.55K | Year: 2013
To achieve the UKs ambitious target of reducing greenhouse gas emissions by 80% by 2050, it is widely accepted that from ca. 2030 Carbon Capture and Storage (CCS) needs to be fitted to both coal and natural gas fired power plants. The flue gas characteristics of natural fired gas power plants, mostly operating in a combined cycle of gas turbine and steam turbine (NGCC), differ significantly from those from coal-fired power plants. Comparing to the flue gas of the same size coal-fired power plant, the flue gas of a NGCC power plant contains significantly lower CO2 (3-5 vs. 13-15%) and higher O2 concentrations (12-15 vs. 2-4%) and has ca. 50% higher flow rate, which make the separation of CO2 equally, if not more, challenging. The most mature PCC technology, CO2 amine scrubbing, suffers from well-know problems of high energy penalty, oxidative solvent degradation and corrosion, large capture plant footprint and high rate of water consumption. A new generation of PCC technologies for NGCC power plants which overcome these drawbacks need to developed and demonstrated in the next 10 ~ 20 years in order for their commercialisation from ca. 2030. Solid adsorbents looping technology (SALT) is widely recognised as having the potential to be a viable next generation PCC technology for CO2 capture compared to the state-of-art amine scrubbing, offering potentially significantly improved process efficiency at much reduced energy penalty, lower capital and operational costs and smaller plant footprints. The aim of this project is to overcome the performance barriers for implementing the two types of candidate adsorbent systems developed at Nottingham, namely the supported/immobilised polyamines and potassium-promoted co-precipitated sorbent system, in the solid looping technology specifically for NGCC power plants, which effectively integrates both materials and process development and related fundamental issues underpinning the technology development. The objectives are: 1. To overcome the following major specific challenges: (a) To examine and enhance the oxidative and/or hydrolytic stability of supported/immobilised polyamine adsorbents and hence to identify efficient and cost-effective management strategies for spent materials. (b) To optimise the formulation and preparation of the potassium-promoted co-precipitated sorbents for improved working capacity, reaction kinetics and regeneration behaviour at lower temperatures. (c.) To gain comprehensive understanding of to what degree and how different flue gas conditions, particularly oxygen and moisture, can impact the overall performance of adsorbent materials and related techno-economic performance of a solid looping process. 2. To produce kilogram quantities of the optimum adsorbent materials and then demonstrate their performances over repeated adsorption/desorption cycles and to establish the optimal process thermodynamics in fluidized bed testing. 3. To investigate a novel rejuvenation strategy for oxidised polyethyleneimines involving low temperature hydrogenation. 4. To conduct techno-economic studies to assess the cost advantages of the solids looping technology for NGCC power plants over amine scrubbing based on the improved adsorbent performance and optimised process configuration achieved in the project. The know-how acquired in this project will be of direct benefit to academics, CCS research community, power generation and energy industries, energy policy makers/regulators, environmental organisations and government departments such as DECC. The successful delivery of the proposed project represents a major step forward in the development and demonstration of the novel and cost-effective Solids Adsorbents Looping CO2 capture technology for NGCC power stations.
Bourji A.,WorleyParsons Group Inc |
Winstead A.,WorleyParsons Group Inc
Chemical Engineering Progress | Year: 2013
A general approach to optimizing the design to optimizing the design of a propane organic Rankine cycle (ORC) system using simulation to generate the process data needed to estimate capital costs and for rate-of-return calculations is outlined. An example is taken in which 47,300 m3/h of fluegas from the steel mill reheat furnace provides heat for the ORC system. The pump is assumed to have an overall efficiency of 75% and the expander and generator an overall efficiency of 84%. At any given pressure, below a certain inlet temperature, the expander exhaust will be a two-phase stream instead of all vapor. It is found that adding the recuperator increases the propane circulation rate by about 50%. It is also found that a recuperator will significantly increase net energy recovery for a given expander inlet temperature and pressure.
Verdich M.,WorleyParsons Group Inc
Australian Geographer | Year: 2010
Concepts of creativity and the attraction of a 'creative class' have become increasingly prominent in regional economic development literature and policy. Richard Florida's books 'Rise of the creative class' and 'Who's your city?' have encouraged city and regional planners to move away from strategies focused on infrastructure development and the attraction of businesses towards strategies which attract people as migrants, particularly the 'creative class', through a focus on characteristics such as a 24/7 lifestyle, cultural amenity and ethnic diversity. This research explored why people who could be categorised as 'creative class' move to Launceston in Tasmania, and what keeps them there. In the regional centre of Launceston, lifestyle, amenity and diversity were not characteristics that attracted in-migration initially. Instead, characteristics particular to small and rural places attracted creative and other professional workers, such as outdoor amenities, downshifting, time with family, proximity to the natural environment and a strong sense of community. Only after arrival did Launceston's comparative cultural wealth come to be appreciated by in-migrants, instead becoming a factor helping to retain newly arrived migrants. © 2010 Geographical Society of New South Wales Inc.
WorleyParsons Group Inc | Date: 2013-02-05
Oxidative and reductive methods are described for the cost-effective destruction of an ammonia-bearing gas stream, potentially containing minor but significant quantities of hydrogen sulfide (H_(2)S), in a conventional Claus sulfur recovery tail gas treating unit, using controlled rates and compositions of combustion gases in order to obtain the temperatures necessary for the desired destruction of unwanted combustibles. In accordance with the present disclosure, a reductive method for the destruction of ammonia in a Claus tail gas treating unit is described, wherein the method includes introducing an ammonia-containing gas stream into a first combustion zone of a reactor in combination with a first oxygen-containing air stream to generate a first combustion gas stream composition; introducing a hydrocarbon-containing fuel gas stream and a second oxygen-containing air stream into a second combustion zone of the reactor to generate a second combustion gas stream composition; combining the first and second combustion gas stream compositions in a waste heat boiler to generate a waste effluent gas; contacting the waste effluent gas with a Claus tail gas stream to produce a primary waste stream; and contacting the primary waste stream with a hydrogenation catalyst system for a period of time sufficient to reduce NO_(x )in the primary waste stream to ammonia.
WorleyParsons Group Inc | Date: 2013-12-12
Tendon systems described herein may include a cellular tendon main body system having at least two essentially parallel pipe strings and may be used to moor a floating structure to a seabed. Hybrid tendon systems may include one or more tendon modules, where at least one tendon module includes a cellular tendon main body system. Where more than one module is used, the modules may be different types or designs of tendon systems, such as conventional single-string tendon or cellular tendon, according to the performance requirements of the module. Cellular tendon main body systems described herein enable the overall tendon, and subsequently the floating structure, to be used in ultra-deep waters and/or with heavy topsides.
WorleyParsons Group Inc | Date: 2010-01-12
Systems and methods for the collection of liquid sulfur with integrated degassing are described, wherein the system and methods include the use of one or more liquid jet pumps or eductors employing a pumped liquid sulfur recycle stream as motive fluid to boost sulfur rundown pressure. The new invention eliminates piping constraints inherent with conventional gravity flow, thus permitting location of the sulfur collection vessel above ground and remote from the sulfur recovery unit. In addition, the described methods provide entrainment and enough agitation in the liquid sulfur such that simultaneously degassing occurs within the sulfur collection piping and associated systems described herein. The instant systems and methods are integrated with the degassing system, meaning that the sulfur will be initially degassed during the collection process, and then further degassing occurs by the methods described herein.
WorleyParsons Group Inc | Date: 2010-05-25
A waste heat recovery system in which hot waste fluids, such as flue gasses, pass through a fluid heat exchanger configured to transfer energy in the form of heat to a heat transfer liquid, preferably molten salt. The energy in the molten salt is used to generate useable power such as electrical energy. The waste gas heat recovery system is especially adapted for use with batch processes, such as steelmaking and copper converting, and allows continuous or substantially continuous power production.
Chmoulian A.Y.,WorleyParsons Group Inc
Proceedings of the Institution of Civil Engineers: Geotechnical Engineering | Year: 2015
Currently used soil nail design methods normally ignore axial stiffness of soil nails and assume that nail–soil adhesion fully develops during construction of the soil nail wall, which would allow the use of conventional stability analysis with peak soil parameters for the newly excavated slopes. Although not fully consistent with the monitoring results for soil nails in working conditions, the resulting structures are proven by the accumulated practical experience for conventional geometry and conventional materials used in soil nail construction. This paper considers the effect of axial stiffness on the forces developing in soil nails, which affects the design of soil nails of lower stiffness, for example soil nails reinforced with fibre-reinforced polymer tendons, or nails of greater lengths. The use of fibre-reinforced polymers has considerable advantages in construction due to their light weight, ease of site preparation and high durability. However, their use is often deterred by their relatively low stiffness and lack of ductility. The paper discusses the methods by which negative effect of the use of soil nails of lower axial stiffness and ductility can be overcome in design. © ICE Publishing: All rights reserved.
News Article | May 4, 2015
WorleyParsons Ltd., Australia’s largest oil services business, said second-half earnings will fall about 50 percent from the first half as it cuts 2,000 jobs and reduces work due to falling commodity prices. There will be about A$125 million ($98 million) in one-time costs to pay for redundancies and cancel rental contracts early, in particular in North America, the Sydney-based engineer said Monday in a statement. The forecast drop would result in net income of about A$52 million, about 62 percent below the A$137 million median of three analyst estimates for the period compiled by Bloomberg. Falling oil and gas prices are challenging the profitability of the energy companies that buy WorleyParsons’ services, with a tally of U.S. oil rig numbers falling 55 percent over the past 12 months. The company gets about 73 percent of its revenue from oil and gas and just over 50 percent of its sales are in Canada and the Americas. “WorleyParsons has experienced deterioration in workload since February,” the company said. The changes were needed “to adjust its business to market conditions.” Shares in the company fell as much as 12 percent, the biggest drop in nearly 18 months, and were down 10 percent at A$10.31 at 11:16 a.m. in Sydney. The stock has risen 2.3 percent so far this year, trailing an 8 percent gain in the S&P/ASX 200 benchmark. West Texas Intermediate crude oil futures have risen 6 percent this year but remain 35 percent below their level a year earlier. U.S. oil production, which has nearly doubled since 2009, has leveled off so far during 2015.