FR2228748A1 - Ethylene yield control from acetylene redn. - using preliminary phase to obt. reaction coeffs - Google Patents
Ethylene yield control from acetylene redn. - using preliminary phase to obt. reaction coeffsInfo
- Publication number
- FR2228748A1 FR2228748A1 FR7317259A FR7317259A FR2228748A1 FR 2228748 A1 FR2228748 A1 FR 2228748A1 FR 7317259 A FR7317259 A FR 7317259A FR 7317259 A FR7317259 A FR 7317259A FR 2228748 A1 FR2228748 A1 FR 2228748A1
- Authority
- FR
- France
- Prior art keywords
- reactor
- acetylene
- temp
- charge
- ethylene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
- G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/02—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation
- C07C5/08—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation of carbon-to-carbon triple bonds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Evolutionary Computation (AREA)
- Medical Informatics (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Artificial Intelligence (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
In the optimal regulation of an acetylene hydrogenation reactor to improve the yield of the desired ethylene, the redn. takes place in a series of reactors, where a charge contg. a temp. controllable mixt. of acetylene, ethylene, ethane and H2 in adjustable proportions is circulated over a catalyst, having a preliminary experimental phase in which the concns. of acetylene, H2 and CO2 in the charge are independently varied so that the temp. of the gas entering the reactor is adjusted, the molar concns. at the reactor exit of H2, C2H2, C2H6, and 'green oil' are measured and with the aid of these results the order of reaction kinetic coeff. and chemical activities of the hydrogenation reactions in the reactor are detd.; the value of the coeffs. are introduced into the formula for opt. yield from the reactor; after this preliminary phase, during function of the reactor, the entry concns. of CO, ethylene and acetylene in the charge are measured and these values, together with the length of service of the catalyst since its last regeneration, are introduced into the formula; H2 concn. and entry temp. of the reactor are calculated and converted to an electrical command signal; and the H2 concn. and temp. of charge are adjusted by mechanical means responsive to the electrical signals. The catalyst pref. contains Pt and Pd on an alumina support. The concn. of the components of the gas is pref. measured rapidly by chromatography, mass spectrometry or selective light absorption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7317259A FR2228748A1 (en) | 1973-05-11 | 1973-05-11 | Ethylene yield control from acetylene redn. - using preliminary phase to obt. reaction coeffs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7317259A FR2228748A1 (en) | 1973-05-11 | 1973-05-11 | Ethylene yield control from acetylene redn. - using preliminary phase to obt. reaction coeffs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2228748A1 true FR2228748A1 (en) | 1974-12-06 |
| FR2228748B1 FR2228748B1 (en) | 1979-03-23 |
Family
ID=9119236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7317259A Granted FR2228748A1 (en) | 1973-05-11 | 1973-05-11 | Ethylene yield control from acetylene redn. - using preliminary phase to obt. reaction coeffs |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2228748A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001003829A1 (en) * | 1999-06-25 | 2001-01-18 | China Petro-Chemical Corporation | Selective hydrogenation catalyst system, its preparation and usage |
| CN113454051A (en) * | 2019-02-28 | 2021-09-28 | 陶氏环球技术有限责任公司 | Method for operating acetylene hydrogenation unit in olefin production process |
| CN114442561A (en) * | 2020-10-20 | 2022-05-06 | 中国石油化工股份有限公司 | Automatic control method and system for hydrogenation reactor before carbon dioxide generation |
-
1973
- 1973-05-11 FR FR7317259A patent/FR2228748A1/en active Granted
Non-Patent Citations (1)
| Title |
|---|
| NEANT * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001003829A1 (en) * | 1999-06-25 | 2001-01-18 | China Petro-Chemical Corporation | Selective hydrogenation catalyst system, its preparation and usage |
| CN113454051A (en) * | 2019-02-28 | 2021-09-28 | 陶氏环球技术有限责任公司 | Method for operating acetylene hydrogenation unit in olefin production process |
| CN113454051B (en) * | 2019-02-28 | 2024-04-02 | 陶氏环球技术有限责任公司 | Method for operating acetylene hydrogenation unit in olefin production process |
| CN114442561A (en) * | 2020-10-20 | 2022-05-06 | 中国石油化工股份有限公司 | Automatic control method and system for hydrogenation reactor before carbon dioxide generation |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2228748B1 (en) | 1979-03-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |