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Improved novel catalyst for hydrocarbon steam reforming

A catalyst and water vapor technology, which is applied in the field of improved new hydrocarbon steam reforming catalysts, can solve the problems of inability to continue industrial production, catalyst carbon deposition, catalyst powder deactivation, etc., and achieve good anti-carbon deposition effect

Inactive Publication Date: 2016-04-06
SOUTHWEST RES & DESIGN INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The applicant's previously published authorized patent CN100463716C discloses a novel hydrocarbon steam reforming catalyst, which contains C 2 Under the atmosphere of refinery tail gas of olefins, although trace olefins can be effectively produced by steam reforming to produce product gas, the gas components of such high-carbon hydrocarbons will cause carbon deposition on the original patented catalyst, which will gradually accumulate with production As a result, the catalyst is pulverized and deactivated, making it impossible to continue industrial production

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  • Improved novel catalyst for hydrocarbon steam reforming
  • Improved novel catalyst for hydrocarbon steam reforming
  • Improved novel catalyst for hydrocarbon steam reforming

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The novel hydrocarbon steam reforming catalyst improved in this example uses nickel oxide (NiO) as the active component, CaO-Al 2 o 3 -K 2 O composite oxide is a high-temperature sintered catalyst supported by a carrier, and the mass ratio of each component is shown in Table 1:

[0039] Table 1 The proportioning ratio of each component of the catalyst in parts by mass

[0040] components

NiO

CaO

Al 2 o 3

K 2 o

TiO 2

SiO 2

Fe 2 o 3

Na 2 o

parts by mass

16

22

55

9

0.4

0.1

0.1

0.2

[0041] The preparation method of the improved novel hydrocarbon steam reforming catalyst of the present invention is as follows:

[0042] 1) Preparation of potassium polyaluminate:

[0043] Weigh the a-Al that has passed through a 250-mesh sample sieve 2 0 3 Powder 100g, heavy CaCO through 320 mesh sample sieve 3 25g, TiO through a 300-mesh sample sieve 2 2.5g and K 2 CO 3 55g, after gr...

Embodiment 2

[0054] The novel hydrocarbon steam reforming catalyst improved in this example uses nickel oxide (NiO) as the active component, CaO-Al 2 o 3 -K 2 O composite oxide is a high-temperature sintered multi-component multi-phase catalyst with a carrier, and the mass ratio of each component is shown in Table 2 below:

[0055] Table 2 The proportioning ratio of each component of the catalyst in parts by mass

[0056] components

NiO

CaO

al 2 o 3

K 2 o

TiO 2

SiO 2

Fe 2 o 3

Na 2 o

parts by mass

18

24

60

10

0.6

0.1

0.1

0.2

[0057] The preparation method of the improved novel hydrocarbon steam reforming catalyst of the present invention is as follows:

[0058] 1) Preparation of potassium polyaluminate:

[0059] Weigh the a-Al that has passed through a 250-mesh sample sieve 2 0 3 Powder 90g, heavy CaCO through 320 mesh sample sieve 3 30g, TiO through a 300-mesh sample sieve 2 4g and ...

Embodiment 3

[0070] The novel hydrocarbon steam reforming catalyst improved in this example uses nickel oxide (NiO) as the active component, CaO-Al 2 o 3 -K 2 The high-temperature sintered multi-component multi-phase catalyst with O composite oxide as the carrier, the mass ratio of each component is shown in Table 3 below:

[0071] Table 3 The proportioning ratio of each component by mass of the catalyst

[0072] components

NiO

CaO

Al 2 o 3

K 2 o

TiO 2

SiO 2

Fe 2 o 3

Na 2 o

parts by mass

17

25

58

12

0.2

0.1

0.1

0.2

[0073] The preparation method of the improved novel hydrocarbon steam reforming catalyst of the present invention is as follows:

[0074] 1) Preparation of potassium polyaluminate:

[0075] Weigh the a-Al that has passed through a 320-mesh sample sieve 2 0 3 Powder 110g, heavy CaCO through 320 mesh sample sieve 3 35g, TiO through a 300-mesh sample sieve 2 2g and K 2 CO ...

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Abstract

The present invention relates to an improved novel catalyst for hydrocarbon steam reforming and belongs to the technical field of chemical catalysts. The high-temperature sintering multielement composite catalyst uses NiO as an active ingredient, and uses a CaO-Al2O3-K2O composite oxide as a carrier. The catalyst comprises the following components by weight: 10-25 parts of NiO, 20-35 parts of CaO, 55-60 parts of Al2O3, 8-20 parts of K2O and 0.1-2 parts of TiO2. The catalyst of the present invention is based on a mildly alkaline hydrocarbon steam reforming catalyst (authorization publication No. CN100463716C) and aims at refinery tail gas containing C2 olefins to improve the alkali metal component and content of the catalyst. The improved novel catalyst for hydrocarbon steam reforming has good steam reforming catalytic activity and good resistance to carbon analysis. On the basis of the original patent, the loss of an alkali metal, anti-carbon deposition effect and the use of the active ingredients are further balanced to achieve steam catalytic conversion effect in a gas component containing C2 olefins.

Description

technical field [0001] The invention belongs to the technical field of chemical catalysts, in particular to an improved novel hydrocarbon steam reforming catalyst. Background technique [0002] With the advancement of technology and the scarcity of energy, energy saving and consumption reduction has become one of the focuses of every production enterprise, especially for the refining and chemical industry, where energy consumption occupies a considerable proportion in the production costs of enterprises. Therefore, effectively improving energy utilization and continuously reducing processing costs is an effective way to enhance the competitiveness of enterprises, and it is also an inherent requirement and the only way for scientific development of enterprises. [0003] In recent years, the quality defects of refined oil in my country have become increasingly prominent. Through the development of hydrogenation technology to improve oil quality and market competitiveness, it h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/78C01B3/40
CPCC01B3/40B01J23/002B01J23/78C01B2203/1058C01B2203/0233B01J2523/00B01J2523/13B01J2523/23B01J2523/31B01J2523/47B01J2523/847Y02P20/52
Inventor 赵丹李启强颜智蒙高碧
Owner SOUTHWEST RES & DESIGN INST OF CHEM IND