TH64550B - The process of manufacturing polyester which is heated by steam - Google Patents

Abstract

DC60 (25/12/09) A process for the formation of polyesters in a polyester manufacturing apparatus is disclosed, including the steps of: generating a reaction medium comprising at least one monomer, including terephthalic acid (TPA) and/or an ester derivative of TPA; introducing at least one portion of the reaction medium into one or more chemical reactions in the polyester manufacturing apparatus to form polyester; generating high-pressure steam at a pressure of at least 5 MPa; heating one or more process fluid streams of the polyester manufacturing apparatus by indirect heat exchange with high-pressure steam, wherein the process fluid stream includes any stream made up primarily of the reaction medium and/or at least one monomer; heating a heat transfer medium (HTM) by indirect heat exchange with high-pressure steam to form the heated HTM; and heating at least a portion of the process fluid stream by indirect heat exchange with the heated HTM.

Claims (1)

Disclaimer (all) which will not appear on the advertisement page. : ------ 30/04/2018 ------ (OCR) Page 1 of 3 pages Disclaimer 1. The process for creating polyester in polyester production equipment. The composite process terminal includes: (a) the creation of a reactive medium consisting of at least one. Terephthalic acid (TPA) and ester derivatives of TPA monomer; 0) The reaction is at least part of the medium. Reaction in polyester production equipment To form the polyester; (c) heating the medium Reaction during the reaction in A thin heat exchanger containing a reaction medium. And high tons of steam; (d) Heating the heat transfer medium (HTM) in the heat exchanger. The second, with high tons of steam to generate HTM, the beam was heated; (e) heating at least part The part or greater the flow of a process fluid consisting of a reaction medium. A third heat exchanger containing HTM, a heated half, and a reaction medium 2. The process of claim 1 at the heat exchanger of the procedure (e) is performed in one or more sections. 3. The process of claim 1 where the phase heating (d) is performed in front or more of the casing heat exchanger. 4. The process of claim 1 that exposes the total amount of energy supplied by the attestation. The heat of the step (d) is at least 70 percent of the total amount of energy used to achieve the The process of the process flow in the polyester production equipment is just hot only. 5. The process of claim 1 where the high-pressure steam is produced is at least 290 ° C. 6. Process of claim 1 at The reaction range consists of esterization and polyconstruction. 7. Process of claim 1 that brewed. The reaction was performed in the connected reactor. Many of the series may include the upside reactor, the second reactor. 8. Process of claim 7 where the first, second, and third reactors each have a substrate. The heat exchanger of first, second and third reactors are included. 9. Process of claim 8 At the first, second and third reactor sockets, each has a separate circuit. The front, second, and third vapors are associated with each other. Page 2 of the number 3. Page 1 0. Process of claim 9 at the left heat exchanger and vapor-liquid separation zone. The first, second, and third reactors each were in separate vessels 1. 1. Process of claim 10 at the point of the first vapor-liquid separation zone located at the end of the stream. Of the first reactor heat exchanger, where the second vapor-liquid separation zone was induced. The stream end of the second reactor heat exchanger, where the third vapor-liquid separation is set. Current end of the third reactor heat exchanger 1 2. Process of claim 8 at the rest of the first, second and third reactor heat exchangers are jacketed and tubular heat exchangers. The high-strength steam on the casing and the reaction medium on the pipe side 1 3. The process of claim 7 where the ester is produced is performed in the first reactor, and the reaction medium is converted. Change at least 70 percent when coming out of the first reactor 1 4. Process of claim 7 where the first reactor has a furnace heat exchanger. One reactor is included. And at the left, from 40 percent to 100 percent of the energy output. All of which were used for heating, the reaction medium of the polyester production equipment was provided. The high-strength steam in the first reactor heat exchanger 1 5. Process of claim 7 in which the amount of heat in the remaining reaction medium was arranged. It is supplied by high-strength steam in the first reactor heat exchanger, ranging from 500 joules per gram to 10,000 joules per gram of polyesters produced from polyethylene production equipment. Step 1 6. Process of claim 7 where the polycondensing process is executed from the furnace. First, second and / or third reactors 1 7. Process of claim 7 with series-connected reactors, including the fourth and fifth reactors, and where the polypropylene Condensation was performed in the fourth and fifth reactors. 1 8. Process of Clause 18 where the polyester was recovered from the fifth reactor. It holds the 19th right that causes ester to be the main reaction in the furnace. The first and second reactors and the polycondensation are the main reactions in the fourth and fifth reactors 2 0. Process of claim 1 where the first heat exchanger is Exchanger Casing and tubing heating At the reaction medium on the pipe side and the strong steam on the casing side Cover during heating and reaction Page 3 of Number 3 Page 2 1. Process of claim 1 at left (b) reaction and (c) heating. Acted in a reactor ------------ 12 July 2017 1. The process for the construction of polyester in polyester production equipment. The assembly process includes: (a) the creation of a reaction medium consisting of at least one Terephthalic acid (TPA) and TPA ester derivatives and at least one diol monomer; (b) at least the reaction Part of the reaction medium in the polyester production equipment To produce polyester; (c) Heating the reaction medium during the reaction in One heat exchanger consisting of Reaction medium and high pressure steam; (d) heating the heat transfer medium (HTM) in a second heat exchanger with high pressure steam to generate HTM which is heated; (e) heating at least part of one or more fluid flows of the composite process. Reaction medium with a third heat exchanger containing HTM heated and reactive medium.