Processing of Heavy Crude Oils : Challenges and Opportunities

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Tác giả: Ramasamy Marappa Gounder

Ngôn ngữ: eng

ISBN-13: 978-1839684111

Ký hiệu phân loại: 665.53 Refinery treatment and products

Thông tin xuất bản: London, UK : London, United Kingdom, 2019

Mô tả vật lý:

Bộ sưu tập: Tài liệu truy cập mở

ID: 200804

Unconventional heavy crude oils are replacing the conventional light crude oils slowly but steadily as a major energy source. Heavy crude oils are cheaper and present an opportunity to the refiners to process them with higher profit margins. However, the unfavourable characteristics of heavy crude oils such as high viscosity, low API gravity, low H/C ratio, chemical complexity with high asphaltenes content, high acidity, high sulfur and increased level of metal and heteroatom impurities impede extraction, pumping, transportation and processing. Very poor mobility of the heavy oils, due to very high viscosities, significantly affects production and transportation. Techniques for viscosity reduction, drag reduction and in-situ upgrading of the crude oil to improve the flow characteristics in pipelines are presented in this book. The heavier and complex molecules of asphaltenes with low H/C ratios present many technological challenges during the refining of the crude oil.
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