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LLNL HRS Process
LLNL HRS (hot recycled solid) process is an above-ground shale oil extraction technology. It is classified as a hot recycled solids technology. History The process was developed by the Lawrence Livermore National Laboratory. In 1984–1987, Lawrence Livermore National Laboratory operated a LLNL HRS process-based pilot pant at Parachute, Colorado, with capacity of one tonne of oil shale per day. In 1989, the pilot plant was upgraded to process four tonne of oil shale per day. The pilot plant was operated till 1993. Later the process was modified and tested in the field of waste treatment and environmental cleanup for removing organic compounds and for decomposing sodium nitrate in contaminated soils. Process As a heat carrier, LLNL HRS process uses spent oil shale. Raw oil shale and spent oil shale are mixed in the fluidized bed mixer. The use of fluidized bed mixer results in better mixture, which in turn increases the mean quantity of oil yield and oil shale throughput. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Industry
The chemical industry comprises the companies that produce industrial chemicals. Central to the modern world economy, it converts raw materials (oil, natural gas, air, water, metals, and minerals) into more than 70,000 different products. The plastics industry contains some overlap, as some chemical companies produce plastics as well as chemicals. Various professionals are involved in the chemical industry including chemical engineers, chemists and lab technicians. History Although chemicals were made and used throughout history, the birth of the heavy chemical industry (production of chemicals in large quantities for a variety of uses) coincided with the beginnings of the Industrial Revolution. Industrial Revolution One of the first chemicals to be produced in large amounts through industrial processes was sulfuric acid. In 1736 pharmacist Joshua Ward developed a process for its production that involved heating saltpeter, allowing the sulfur to oxidize and combine with water ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Combustor
A combustor is a component or area of a gas turbine, ramjet, or scramjet engine where combustion takes place. It is also known as a burner, combustion chamber or flame holder. In a gas turbine engine, the ''combustor'' or combustion chamber is fed high-pressure air by the compression system. The combustor then heats this air at constant pressure as the fuel/air mix burns. As it burns the fuel/air mix heats and rapidly expands. The burned mix is exhausted from the combustor through the nozzle guide vanes to the turbine. In the case of a ramjet or scramjet engines, the exhaust is directly fed out through the nozzle. A combustor must contain and maintain stable combustion despite very high air flow rates. To do so combustors are carefully designed to first mix and ignite the air and fuel, and then mix in more air to complete the combustion process. Early gas turbine engines used a single chamber known as a can-type combustor. Today three main configurations exist: can, annular, and c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KENTORT II
KENTORT II is an above-ground shale oil extraction process developed by the Center for Applied Energy Research of the University of Kentucky. It is a hot recycled solids fluidized bed retorting process developed since 1982 for processing the eastern United States Devonian oil shales. The concept of this process was initiated in 1986 in the test unit. The KENTORT II retort consists of four fluidized bed vessels, configured in cascade. The raw oil shale is fed to the pyrolysis vessel the pyrolysis section, where it is fluidized by a mixture of steam and product oil shale gas from the gasification section below. Heat is transferred to the raw oil shale by a combination of fluidizing gas and recirculating hot spent shale from the gasification section. The pyrolysis takes place at to . The pyrolyzed oil shale moves by gravity downward to the gasification section. Gasification, which takes place at to , converts remained carbon in the spent shale (char) to product oil shale gas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chevron STB Process
The Chevron STB process (also known as Staged Turbulent Bed Retorting Process) is an above-ground shale oil extraction technology. It is classified as a hot recycled solids technology. The Chevron STB process is a hot recycled solids technology, which processes small particles of oil shale. It was invented by Paul W. Tamm and Gordon E. Langlois in the Chevron Research Company laboratory in Richmond, California. As a heat carrier, it uses oil shale ash, produced by combustion of spent oil shale in the separate combustor. In this process, crushed oil shale is fed into the top of the retort where it is mixed with the hot oil shale ash. The oil shale moves downward through the retort as fluidized bed of particles. While descending, the heat is transferred from the oil shale ash to the raw oil shale causing pyrolysis. As a result, oil shale decomposes to shale oil vapors, oil shale gas and spent oil shale. A stripping gas is inserted from the bottom of retort, which carries oil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paraho Process
The Paraho process is an above ground retorting technology for shale oil extraction. The name "Paraho" is delivered from the words "''para homem''", which means in Portuguese "for mankind". History The Paraho process was invented by John B. Jones, Jr., later president of the Paraho Development Corporation, and developed by Development Engineering, Inc., in the late 1960s. Its design was based on a gas combustion retort developed by the United States Bureau of Mines and the earlier Nevada–Texas–Utah Retort. In the late 1940s, these retorts were tested in the Oil Shale Experiment Station at Anvil Points in Rifle, Colorado. In 1971, the Standard Oil of Ohio started to cooperate with Mr. John B. Jones providing financial support for obtaining an oil shale lease at Anvil Points. In May 1972, the lease was approved. Before leasing a track at Anvil Points, a test of using the Paraho Direct process for limestone calcination in cement kilns was carried out. The consortium fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fushun Process
The Fushun process is an above-ground retorting technology for shale oil extraction. It is named after the main production site of Fushun, Liaoning province in northeastern China. History The Fushun process was developed and utilized for the extraction of shale oil in China during the mid-1920s. The commercial-scale utilization of the process began in 1930 with the construction of "Refinery No. 1". After World War II, the shale oil production was ceased, but 100 Fushun-type oil shale retorts were restored in 1949. In 1950, total 266 retorts were in operation, each with the capacity of 100–200 tons of shale oil per day. With the discovery of Daqing oil field in the 1960s, the shale oil production declined and Sinopec, an operator of shale oil production these times, shut down its oil shale operations in the beginning of the 1990s. At the same time, the Fushun Oil Shale Retorting Plant, using Fushun process technology, was established as a part of the Fushu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TOSCO II Process
The TOSCO II process is an above ground retorting technology for shale oil extraction, which uses fine particles of oil shale that are heated in a rotating kiln. The particularity of this process is that it use hot ceramic balls for the heat transfer between the retort and a heater. The process was tested in a 40 tonnes per hour test facility near Parachute, Colorado. History TOSCO II process is a refinement of the Swedish Aspeco process. The Tosco Corporation purchased its patent rights in 1952. In 1956, the Denver Research Institute performed research and development of this technology, including testing of a 24 ton per day pilot plant, which operated until 1966. Later the technology development was continued under Tosco's own directions. In 1964 Tosco, Standard Oil of Ohio, and Cleveland Cliffs Iron Company formed Colony Development, a joint venture company to develop the Colony Shale Oil Project and to commercialize the TOSCO II technology. The project wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kiviter Process
The Kiviter process is an above ground retorting technology for shale oil extraction. History The Kiviter process is based on the earlier vertical retort technology (Pintsch's generator). This technology underwent a long process of development. The early concept of central inlet of the heat carrier was later replaced by a concept of heat carrier gas cross flow in the retort. The Kiviter technology has been used in Estonia since 1921, when first experimental Kiviter retorts were built. The first commercial scale oil plant based on the Kiviter technology was built in 1924. From 1955 to 2003, Kiviter technology was used for oil shale processing also in Slantsy, Russia. Technology The Kiviter process is classified as an internal combustion technology. The Kiviter retort is a vertical cylindrical vessel that heats coarse oil shale with recycled gases, steam, and air. To supply heat, gases (including produced oil shale gas) and carbonaceous spent residue are burnt wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petrosix
Petrosix is the world's largest surface oil shale pyrolysis retort with an diameter vertical shaft kiln, operational since 1992. It is located in São Mateus do Sul, Brazil, and it is owned and operated by the Brazil energy company Petrobras. Petrosix means also the Petrosix process, an externally generated hot gas technology of shale oil extraction. The technology is tailored to Irati oil shale formation, a Permian formation of the Paraná Basin. History Petrobras started oil shale processing activities in 1953 by developing Petrosix technology for extracting oil from oil shale of the Irati formation. A inside diameter semi-works retort (the Irati Profile Plant) with capacity of 2,400 tons per day, was brought on line in 1972, and began limited commercial operation in 1980. The first retort that used current Petrosix technology was a internal diameter retort pilot plant started in 1982. It was followed by a retort demonstration plant in 1984. A retort was brought into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galoter Process
The Galoter process (also known as TSK, UTT, or SHC; its newest modifications are called Enefit and Petroter) is a shale oil extraction technology for a production of shale oil, a type of synthetic crude oil. In this process, the oil shale is decomposed into shale oil, oil shale gas, and spent residue. A decomposition is caused by mixing raw oil shale with a hot oil shale ash, generated by combustion of carbonaceous residue ( semi-coke) in the spent residue. The process was developed in 1950s and it is used commercially for the shale oil production in Estonia. There are projects for further development of this technology and for expansion of its usage, e.g. in Jordan and USA. History Research of the solid heat carrier process for pyrolysis of lignite, peat, and oil shale started in 1944 at the G. M. Krzhizhanovsky Power Engineering Institute of Academy of Sciences of the USSR. At the laboratory scale, the Galoter process was invented and developed in 1945–1946. The proce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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