The evaluation incorporated purchased equipment cost estimates obtained from equipment suppliers and two different commercial software packages namely, Aspen-Icarus and Preliminary Design and Quoting Service (PDQ$). GTI completed a techno-economic evaluation of the new process based on an Aspen-HYSYS simulation model. The new process integrates the dehydration of the raw natural gas stream and the removal of NGLs in such a way that heat recovery is maximized and pressure losses are minimized so that high-value equipment such as the compressor, turbo-expander, and a separate dehydration unit are not required. The purpose of this project is to develop a new NGL separation process that is flexible in terms of ethane rejection and can reduce energy consumption by 20-30% from current levels, particularly for ethane recoveries of less than 70%. This process is known to be highly energy intensive, as substantial energy is required to recompress the processed gas back to pipeline pressure. Presently, cryogenic turbo-expander technology is the dominant NGL recovery process and it is used throughout the world. Successful gas processors will be those who adopt technologies that are less energy intensive, have lower capital and operating costs and offer the flexibility to tailor the plant performance to maximize product revenue as market conditions change, while maintaining overall system efficiency. However, rising natural gas prices have dramatically reduced the economic incentive to extract NGLs from domestically produced natural gas. The revenue derived from extracting NGLs is crucial to ensuring the overall profitability of the domestic natural gas production industry and therefore of ensuring a secure and reliable supply in the 48 contiguous states. Historically, the commercial value of the separated NGL components has been greater than the thermal value of these liquids in the gas. NGL is a collective term for C2+ hydrocarbons present in the natural gas. Specific goals and objectives of the overall program include: (i) collecting relevant physical property and Vapor Liquid Equilibrium (VLE) data for the design and evaluation of the new technology, (ii) solving critical R&D issues including the identification of suitable dehydration and NGL absorbing solvents, inhibiting corrosion, and specifying proper packing structure and materials, (iii) designing, construction and operation of bench and pilot-scale units to verify design performance, (iv) computer simulation of the process using commercial software simulation platforms such as Aspen-Plus and HYSYS, and (v) preparation of a commercialization plan and more » identification of industrial partners that are interested in utilizing the new technology. When successfully developed, this technology will benefit the petrochemical industry, which uses NGL as feedstocks, and will also benefit other chemical industries that utilize gas-liquid separation and distillation under similar operating conditions. 6,553,784, which if commercialized, has the potential of achieving substantial energy savings compared to currently used cryogenic technology. The new process, known as the IROA process, is based on U.S. But of course, these tables, graphs, diagrams, and equations may or may not be used depending on the examiners choice of questions.The overall objective of this project is to develop a new low-cost and energy efficient Natural Gas Liquid (NGL) recovery process - through a combination of theoretical, bench-scale and pilot-scale testing - so that it could be offered to the natural gas industry for commercialization. Time is one of the enemies when taking the board exam, and examinees cannot waste time on scanning pages to find the references. These pages are chemical engineering knowledge that aspiring chemical engineers need to find easily during the exams.
Clausius-Clapeyron Equation and similar equations.Physical and Chemical Properties of Organic and Inorganic Substances.Steam Table (Saturated and Superheated Steam).
#HOW TO READ A DEPRIESTER CHART PROFESSIONAL#
There are several data that can only be retrieved in the pages of this state-of-the-art handbook.īut what are the most relevant topics contained in this thick book especially when taking the professional exams? Take note of the following pages that need some bookmarks or flags on the pages for easy navigation, as these tables, graphs, diagrams, and equations are most likely to be used in test items: One needs to be familiar with this handbook and its contents that will not only be used in professional exams, but most importantly during professional work. Upon having the core chemical engineering subjects, students are bound to purchase this book for important references.
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