GB1310975A – Method of and apparatus for regulating the temperature and conversi on in a polymerization reactor
– Google Patents
GB1310975A – Method of and apparatus for regulating the temperature and conversi on in a polymerization reactor
– Google Patents
Method of and apparatus for regulating the temperature and conversi on in a polymerization reactor
Info
Publication number
GB1310975A
GB1310975A
GB3462270A
GB3462270A
GB1310975A
GB 1310975 A
GB1310975 A
GB 1310975A
GB 3462270 A
GB3462270 A
GB 3462270A
GB 3462270 A
GB3462270 A
GB 3462270A
GB 1310975 A
GB1310975 A
GB 1310975A
Authority
GB
United Kingdom
Prior art keywords
temperature
pipe
solvent
line
rate
Prior art date
1969-07-21
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.)
Expired
Application number
GB3462270A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SnamProgetti SpA
Original Assignee
SnamProgetti SpA
Priority date (The priority date 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 date listed.)
1969-07-21
Filing date
1970-07-16
Publication date
1973-03-21
1970-07-16
Application filed by SnamProgetti SpA
filed
Critical
SnamProgetti SpA
1973-03-21
Publication of GB1310975A
publication
Critical
patent/GB1310975A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
B01J19/0006—Controlling or regulating processes
Abstract
1310975 Automatic control of temperature & fluid flow rate SNAM PROGETTI SpA 16 July 1970 [21 July 1969] 34622/70 Heading G3R Relates to a method of regulating the temperature of and degree of conversion in a polymerization reaction in which at least one polymerizable monomer is fed to a reactor together with a catalyst dissolved or suspended in a liquid medium, by controlling the feedrate of the catalyst and the temperature of the liquid medium. In the drawing thick lines represent pipe lines for process fluids and thin lines represent electrical connections. Monomer is fed at a constant rate and temperature via pipe-line 1 to a reactor vessel 5 and the polymerized product is discharged through 6. A pipe-line 3 conveys a catalyst dissolved in a solvent, at a constant composition and temperature but variable flowrate. A line 4 conveys the majority of the solvent at a variable temperature, solvent streams in lines 13, 14 and at different temperatures being fed via a controlled mixing valve 12 and a combined stream at an adjusted temperature being fed to the pipe-line 4. The flow-rates in the pipe-lines 3, 4 are regulated by controlled valves 20, 16 so that the solvent and catalyst conveyed by line 2 to the reactor, flows at a constant rate. ELECTRICAL CONTROL ARRANGEMENT The reaction temperature is measured by a sensor 7 in the reactor or pipe-line 6 and is compared in a comparator 8 with a desired reaction temperature signal in a conductor 9. The comparator 8 output is compared in a comparator 10 with the solvent/catalyst temperature in pipe-line 2 and measured by a sensor 11. The resulting output from comparator 10 controls the mixing valve 12 as described above, whereby the solvent temperature in pipe-line 4 and hence in pipe 2, is maintained at a value imposed by comparator 8. The flow-rate in pipe 2 is sensed by a unit 15 which controls valve 16 to adjust the flow-rate in pipe 4 in conjunction with any flow-rate changes in pipe 3, whereby to maintain a constant flowrate in pipe 2. A signal representing the desired degree of monomer conversion is fed via a conductor 21 to a signal processor 22, together with the desired reaction temperature signal in conductor 9. The processor 22 produces a control signal therefrom in a conductor 18. This signal is compared with the solvent/catalyst temperature sensed by 11, in a comparator 17, the output of which is fed as a reference value to a regulator 19. The regulator 19 also receives an input significant of the flow-rate of catalyst/ solvent in pipe 3 and regulates the said flow-rate accordingly, by means of the valve 20. Thus the reference control signal in conductor 18 is such that the difference between the temperature of solvent entering the reactor vessel 5 as measured by 11 and the temperature of product discharged therefrom as measured by 7, corresponds to the heat developed by the reaction in accordance with the desired degree of monomer conversion.
GB3462270A
1969-07-21
1970-07-16
Method of and apparatus for regulating the temperature and conversi on in a polymerization reactor
Expired
GB1310975A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
IT1990069
1969-07-21
Publications (1)
Publication Number
Publication Date
GB1310975A
true
GB1310975A
(en)
1973-03-21
Family
ID=11162177
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB3462270A
Expired
GB1310975A
(en)
1969-07-21
1970-07-16
Method of and apparatus for regulating the temperature and conversi on in a polymerization reactor
Country Status (11)
Country
Link
US
(1)
US3705787A
(en)
JP
(1)
JPS492020B1
(en)
BE
(1)
BE753355A
(en)
CA
(1)
CA945346A
(en)
DE
(1)
DE2036205B2
(en)
ES
(1)
ES382453A1
(en)
FR
(1)
FR2055172A5
(en)
GB
(1)
GB1310975A
(en)
LU
(1)
LU61346A1
(en)
NL
(1)
NL7010756A
(en)
ZA
(1)
ZA704695B
(en)
Families Citing this family (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4185073A
(en)
*
1976-07-26
1980-01-22
Standard Oil Company (Indiana)
Apparatus for iso- or terephthalic acid production in and recovery from benzoic acid-water solvent system
US5521392A
(en)
*
1994-04-29
1996-05-28
Efos Canada Inc.
Light cure system with closed loop control and work piece recording
1970
1970-07-07
ZA
ZA704695A
patent/ZA704695B/en
unknown
1970-07-13
BE
BE753355D
patent/BE753355A/en
unknown
1970-07-16
LU
LU61346D
patent/LU61346A1/xx
unknown
1970-07-16
GB
GB3462270A
patent/GB1310975A/en
not_active
Expired
1970-07-16
FR
FR7026112A
patent/FR2055172A5/fr
not_active
Expired
1970-07-17
ES
ES382453A
patent/ES382453A1/en
not_active
Expired
1970-07-20
CA
CA088,647A
patent/CA945346A/en
not_active
Expired
1970-07-21
JP
JP45063328A
patent/JPS492020B1/ja
active
Pending
1970-07-21
DE
DE19702036205
patent/DE2036205B2/en
active
Pending
1970-07-21
NL
NL7010756A
patent/NL7010756A/xx
not_active
Application Discontinuation
1970-07-21
US
US56896A
patent/US3705787A/en
not_active
Expired – Lifetime
Also Published As
Publication number
Publication date
DE2036205A1
(en)
1971-04-29
CA945346A
(en)
1974-04-16
ES382453A1
(en)
1973-04-16
NL7010756A
(en)
1971-01-25
LU61346A1
(en)
1970-09-16
FR2055172A5
(en)
1971-05-07
BE753355A
(en)
1970-12-16
US3705787A
(en)
1972-12-12
ZA704695B
(en)
1972-01-26
JPS492020B1
(en)
1974-01-18
DE2036205B2
(en)
1972-02-24
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Legal Events
Date
Code
Title
Description
1973-08-01
PS
Patent sealed [section 19, patents act 1949]
1980-03-05
PCNP
Patent ceased through non-payment of renewal fee
