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Process for heavy oil and bitumen upgrading

A technology for heavy oil and bitumen, applied in chemical instruments and methods, processing tar pitch/petroleum pitch/natural pitch by distillation, processing hydrocarbon oil, etc., can solve problems such as the inability to provide the usefulness of recirculating flow

Inactive Publication Date: 2012-10-24
史蒂夫.克雷斯尼亚克
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Nor does the document provide any teaching regarding the use of the Fischer-Tropsch process, the usefulness of recycle streams, the generation of hydrogen critical to the successful upgrading of crude bitumen, or other valuable and efficient unit operations

Method used

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  • Process for heavy oil and bitumen upgrading
  • Process for heavy oil and bitumen upgrading
  • Process for heavy oil and bitumen upgrading

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Embodiment Construction

[0053] figure 1 A prior art method indicated at 10 is shown. Heavy oil or bitumen sources 12 may include recoverable or in-situ bitumen reservoirs. The bitumen may then be transported to preparation unit 14 into which a diluent or solvent may be introduced from reformer 18 via line 16 . The diluent or solvent may comprise any suitable material, such as a suitable liquid alkane. Once the diluent is introduced via line 16, a migratable bitumen blend (dilbit) is obtained. Once the diluted asphalt blend is processed in upgrader 18, the resulting synthetic crude product 20 is then processed in refinery 22 to subsequently produce a refined product represented by 24.

[0054] Preparation unit 14 primarily removes water and solids from the stream. Solvent 16 is added to the crude bitumen to provide the necessary migration and separation parameters, primarily a reduction in viscosity. In the case of bitumen derived from oil sands, water is added to the feedstock to provide a slurr...

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Abstract

A bitumen and heavy oil upgrading process and system is disclosed for the synthesis of hydrocarbons, an example of which is synthetic crude oil (SCO). The process advantageously avoids the waste attributed to residuum and / or petcoke formation which has a dramatic effect on the yield ofhydrocarbon material generated. The process integrates Fischer-Tropsch technology with gasification and hydrogen rich gas stream generation. The hydrogen rich gas generation is conveniently effected using singly or in combination a hydrogen source, a hydrogen rich vapour from hydroprocessing and the Fischer-Tropsch process, a steam methane reformer (SMR) and autothermal reformer (ATR) or a combination of SMR / ATR. The feedstock for upgrading is distilled and the bottoms fraction is gasified and converted in a Fischer-Tropsch reactor. A resultant hydrogen lean syngas is then exposed to the hydrogen rich gas stream to optimize the formation of, for example, the synthetic crude oil. The hydrogen lean gas stream may also be effected by a water gas shift reaction, singly or in combination or in addition with the hydrogen rich gas stream generation. A system for effecting the process is also characterized in the specification.

Description

technical field [0001] The present invention discloses improvements to bitumen and heavy oil upgrading processes for the synthesis of synthetic crude oil and other valuable hydrocarbon by-products that operate in an efficient manner. Background technique [0002] Hydrocarbons need to be upgraded in order to be transported or to increase sales value. Moreover, refining is not suitable for processing heavy oil, bitumen, etc., so the viscosity, density and content of impurities (such as heavy metals, sulfur and nitrogen) present in such heavy materials must be changed for refining. Upgrading mainly focuses on reducing the viscosity, sulfur, metal and asphaltenes content of bitumen. [0003] One problem with upgrading is that asphaltenes and heavy fractions must be removed or modified to generate value and product yield. Typical reformers exacerbate this problem by forming petcoke or residue, which leads to undesirable waste. This material cannot be easily converted by conven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G2/00C10G7/00C10C3/06C01B3/02C01B3/36C01B3/12
CPCC10G2300/42C01B2203/1047C01B3/384C10G2300/1077C01B2203/043C10J2300/1659C01B3/34C10G2300/1022C10G2300/206C01B3/382C10K3/06C10J3/00C01B2203/0283C10G2/30C10J2300/1662C01B2203/0244C01B2203/062C01B2203/1082C10J2300/0913C01B2203/0405C01B2203/0233C10J2300/0959B01J19/00C10G69/12C10G3/00
Inventor 史蒂夫.克雷斯尼亚克
Owner 史蒂夫.克雷斯尼亚克
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