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Modified thermal processing of heavy hydrocarbon feedstocks

A technology for thermal processing and raw materials, applied in heating/cooling refining, metal refining, etc., can solve the problem of undisclosed short residence time reactor use, etc., and achieve the effect of reducing corrosiveness

Inactive Publication Date: 2007-11-07
IVANHOE HTL GASOLINEEUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it does not disclose the use of short residence time reactors to produce transportable feedstock

Method used

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  • Modified thermal processing of heavy hydrocarbon feedstocks
  • Modified thermal processing of heavy hydrocarbon feedstocks
  • Modified thermal processing of heavy hydrocarbon feedstocks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1、2 and 5

[0095] Have less than 50% of components produced at temperatures above 538°C (vacuum raffinate fraction);

[0096] • Contains from about 60% to about 95% of the product produced below 538°C. Preferably from about 62% to about 85% of the product is produced during SimDist below 538°C (i.e. before the vacuum raffinate fraction);

[0097] • Has from about 1.0% to about 10% liquid product produced below 193°C. Preferably from about 1.2% to about 6.5% produced below 193°C (i.e. before naphtha and kerosene fractions);

[0098] - Produced between 193-232°C with from about 2% to about 6% liquid product. Preferably from about 2.5% to about 5% produced between 193°C and 232°C (kerosene fraction);

[0099] • Has a liquid product from about 10% to about 25% produced between 232-327°C. Preferably produced from about 13% to about 24% at 232-327°C (diesel fraction);

[0100] • Has from about 6% to about 15% liquid product produced between 327-360°C. Preferably from about 6.5% to about ...

Embodiment 1

[0188] Embodiment 1: heavy oil (single stage)

[0189] Pyrolysis processing of Saskatchewan heavy oil and Athabasca bitumen (see Table 1) was carried out over a wide range of temperatures using a pyrolysis reactor as described in US 5,792,340.

[0190] compound

heavy oil 1)

asphalt 2)

Carbon (wt%)

Hydrogen (wt%)

Nitrogen (wt%)

Sulfur (wt%)

Ash (wt%)

Vanadium (ppm)

Nickel (ppm)

Water content (wt%)

Gravity API°

Viscosity@40℃(cSt)

Viscosity@60℃(cSt)

Viscosity@80℃(cSt)

Aromaticity ( 13 CNMR)

84.27

10.51

＜0.5

3.6

0.02

127

43

0.8

11.0

6500

900

240

0.31

83.31

10.31

＜0.5

4.8

0.02

204

82

0.19

8.6

40000

5200

900

0.35

[0191] 1) Saskatchewan heavy oil

[0192] 2) Athabasca pitch (pure)

[0193] Briefly, processing conditions included reactor temperatures from about 500°C to about 620°...

Embodiment 2

[0209] Embodiment 2 asphalt (single stage)

[0210] Several operations on Athabasca bitumen were carried out using the pyrolysis reactor described in US 5,792,340. Process conditions included reactor temperatures from 520°C to 590°C. The charge ratio of particulate heat carrier to feedstock is from about 20:1 to about 30:1 and the residence time is from about 0.35 to about 1.2 seconds. These conditions and the resulting liquid products are summarized in more detail below (Table 7).

[0211] cracking temperature

degree ℃

Viscosity@

40℃(cSt)

Yield

wt%

Density @

15°C

Metal V

(ppm) *

Metal Ni

(ppm) **

APIs

519

525

528

545

590

205

201

278

151

25.6

81.0

74.4

82.7

77.4

74.6

nd

0.979

nd

0.987

0.983

nd

88

nd

74

nd

nd

twenty four

nd

27

nd

13.0

12.9 ...

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Abstract

The present invention is directed to the upgrading of heavy petroleum oils o f high viscosity and low API gravity that are typically not suitable for pipelining without the use of diluents. It utilizes a short residence-time pyrolytic reactor operating under conditions that result in a rapid pyrolytic distillation with coke formation. Both physical and chemical changes taking place lead to an overall molecular weight reduction in the liquid product and rejection of certain components with the byproduct coke. The liquid product is upgraded primarily because of its substantially reduced viscosity, increased API gravity, and the content of middle and light distillate fractions. While maximizing the overa ll liquid yield, the improvements in viscosity and API gravity can render the liquid product suitable for pigelining without the use of diluents. This invention particularly relates to reducing sulfur emissions during the combustion of byproduct coke (or coke and gas), to reducing the total acid number (TAN) of the liquid product, and to reducing the hydrogen sulfid e content of one, or more than one component of the product stream. The method comprises introducing a particulate heat carrier into an up-flow reactor, introducing the feedstock at a location above the entry of the particulate heat carrier, allowing the heavy hydrocarbon feedstock to interact with the heat carrier for a short time, separating the vapors of the . product stream from the particulate heat carrier and liquid and byproduct solid matter, regenerating the particulate heat carrier in the presence of the calcium compound, and collecting a gaseous and liquid product from the product stream.

Description

technical field [0001] The present invention relates to rapid thermal processing (RTP) of viscous oils TM ). More particularly, the present invention relates to a method for reducing the hydrogen sulfide content of one or more gaseous components in a product stream derived from rapid thermal processing of a heavy hydrocarbon feedstock. Background technique [0002] Heavy oil and bitumen sources are supplementing the decline in traditional light and medium crude oil production, and production from these sources is steadily increasing. Pipelines cannot handle these crudes to their specifications unless diluents are added to reduce their viscosity and specific gravity. Alternatively, desirable properties can be achieved through initial modification. However, diluted crude oil or upgraded synthetic crude oil is significantly different from conventional crude oil. As a result, bituminous mixtures or synthetic crudes are not easily processed in conventional fluid catalytic cra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G31/06C10G29/04
Inventor 巴里·弗瑞尔道格·克拉克杰里·F.·克里茨
Owner IVANHOE HTL GASOLINEEUM