TH18297A - Selective hydrogenation of highly unsaturated compounds in hydrocarbon currents. - Google Patents

Abstract

Reveal the hydrogenation process Selectively of diolefin and acetylenic compounds In the liphatic hydro stream Carbon with a lot of olefins Selective hydrogenation was achieved at 40–300 ํ under low hydrogen pressure in the range of approximately 0.1 psi to below 70 psi at 0 - 350 psig in column reactors. Distilled with a hydrogenation catalyst Which will act as a component Of a refined structure such as a supported Pdo Inserted in a tube A basket of wire mesh. Without any hydrogenation of olefins

Claims (8)

1. The process for selective hydrogenation of highly unsaturated compounds consists of steps of (a) entering (1) high unsaturated hydrocarbon currents containing di-olefins and amines. Settylene and (2) the hydrogen stream enters the distillation column reactor (b) counter-flow in the distillation column reactor. At the sub pressure of the hydro The genes yielded in the range of at least 0.1 psi to less than 70 psi (i). In the catalyst distillation reaction area Hydrogenation is prepared in such a way that it acts as a distillation structure. By hydro Selective genetics of a part of highly unsaturated compounds with hydrogen to form Less unsaturated hydrocarbons in the reaction mixture In the mixed phase of the vapor / liquid and (ii) the selective separation of the olefins produced by the hydrogenation. Out of the mix, the reaction by fractional distillation in the distillation structure. While prepared For condensation part of hydrocarbons containing olefins and hydro compounds High unsaturated carbon 2. Claim Movement 1 where the hydrocarbon currents consist of Aliphatic compounds with 3 to 9 carbon atoms 3. Proceeding process 1 where the hydrocarbon current consists of Normal main dosage The olefins have been separated as a product of the aforementioned hydrogenation 4. Claim Process 1 where the hydrocarbons contain WHSV in the range 0.1-35 5. Claim Movement 2 Where the upper pressure of the distillation column reactor is in the range 0 - 350 psig 6. The process of claim 1 where the fractional pressure of the hydrogen is less than 50 psig 7. The process of claim 6 where At least 10 psia the subpressure of the hydrogen. 8. The process of claim 7 where the subpressure of the hydrogen is less than 7 psia. 9. The subpressure of the hydrogel 5. Less than 50 psia 1 0. Clause 9 with the hydrogel pressure less than 10 psia 1 1. Clause 10 with the hydroge less than 7 psia 1 2. The movement of the claim 1, whereby the catalist in the hydrogenesis of the Metal Or compounds of group VIII metals are the basic components of the catalyst. 1 3. Proceedings of Clause 12 where the catalist consists of Pd 1 4. The movement of claim 5 where the pressure above They are in the range of 50 - 150 psia. 1. 5. Claim 1 process consists of a phase of (a) entering (1) current one containing ofin di-olefin and acetate compound. Hydrocarbon lynic and (2) a second stream with hydrogen enters the distillation column reactor into the feed area (b) counter flow in the distillation column reactor. Under sub pressure of Hydrogen at approximately 0.1 psi to less than 50 psi (i) exposure to such currents. In the area of the catalyst distillation reaction Hydrogenation is prepared in such a way that it acts as a distillation structure. By reaction All di-olefins are important. And acetylene with hydrogen to form hydro. The less unsaturated carbon in the mixture reacts in the partial liquid phase and (ii) the separation of the olefins present in the first such current and any olfins produced. Hydrogenation out of the mix React by fractional distillation while preparing. For the condensation of a hydrocarbon containing olefin, di-olefin and acetylene hydrocarbon constituents in the distillation zone 1 6. Procedure of claim 15, where the first current is fed. As it enters at the end The lower side of the reaction area Such distillation Or enter under the said end. 1 7. The movement of claim 15 by which various currents are fed into the reactor. Such distillation column In a separate manner. 1 8. The movement of the claim 15 which provided the first stream. And that second stream The distillation column 1 9. Procedure of claim 15 where hydrocarbon currents are composed of Aliphatic compound with 3 - 9 carbon atoms 2 0. Clause 19, where the hydrocarbon currents are composed of C3 2. 1. The hydrocarbon current consists of a cross section. C4 2 2. Claim Process 19 where the hydrocarbon current consists of a cross-section C5 2 3. Clause 19, where the hydrocarbon current consists of a cross-section C6 2 4. Clause current 19 where Has given the first stream And that second stream 2 5. Proceed of claim 15 where the catalyst of the hydrogenation consists of a metal or a compound of Category VIII metals as a fundamental component of The aforementioned catalyst 2 6. The Clause 25 process, whereby the catalyst for hydrogenation consists of 0.1 - 5.0% by weight of paradium oxide on extrudate. Lumina 2 7. The movement of claim 15, where the pressure on the top of the reactor column. The distillation is between 240 and 315 psig 2. 8. Clause 27 process, where the first stream consists of propylene 2. 9. The process of claim 15 where the structure of the distillation consists of propylene. A cylindrical wire mesh that is a flexible semi-solid open mesh. Which was contained with catalyst In small detail hydrogenesis 3 0. The Claim 15 process also consists of steps. (c) extracting olfins (B) (ii), with any inactive hydrogen and alkanes from the reaction, such distillation column is the above substance. 3 1. Procedure of claim 15. The distillation column reactor operates at the upper pressure in the range of 0 and 250 psig 3 2. Clause 31 with the above pressure in the range 50 - 150 psig 3 3. The claim process 15 where the internal temperature of the distillation site is in the range of 40 - 300 ํ 3 4. The claim process 33, where the temperature within the distillation site is in the range 110 - 270 ํ. 3 5. Claim Process 15 where d-olefin and acetylene All significant flows were separated from the hydrocarbon currents. 3 6. Clause 15 Movement, where the first one contained WHSV in the range 0.1 - 35 3. 7. Clause 16. Such list of hydrogenation Metal Or compounds of group VIII metals are the basic components of the catalyst. 3 8. Clause 37 The catalist of hydrogenation consists of 0.1 - 50% by weight of the paradia. Moxide on extrudalumina 3 9. Procedure of claim 37 whereby the distillation column reactor has performed The above pressure in the range 0 and 250 psig 4 0. Clause 39 with the temperature in the distillation reaction range 40 - 300 ํ 4 1. Clause process. 40 where the pressure is in the range of 50 - 150 psig 4 2. The process of claim 41 where the temperature in the distillation reaction is in the range 110 - 270 ํ. Claim 42 where the hydrogen subpressure is in the range 0.1 - 10 psia 4 4. The movement of claim 43 with the internal reflux is 0.5-5 L / D 4 5. The movement of the claim 43 Claim 15, where the highly unsaturated compound has been hydrated. 4 6. Clause 1 Movement, where the upper order containing the condensed hydrocarbons is separated from the column reactor. Virtually all of the condensed hydrocarbons are condensed and returned to the reactor, the distillation column as reflux 4 7, Clause 13, with the said catalist 4 8 Silver. The movement of the claim 38, where the said catlist has money 4 9. The process for the selective hydrogenesis Of unsaturated compounds The advanced consists of steps of (a) feeding, (1) highly unsaturated hydrocarbon currents consisting of diolphins, and (2) hydrogen-containing currents entering the distillation column reactor (b) counter-flow. Together in the aforementioned distillation column reactor at the sub-pressure of the hydro The results showed in the range of at least 0.1 psi to less than 70 psi (i) exposure to such currents in the catalyst distillation site. Hydrogenation is prepared in such a way that it acts as a distillation structure. By hydro Selective genetics of a part of highly unsaturated compounds with hydrogen to form Less unsaturated hydrocarbons in the reaction mixture In the mixing phase of the vapor / liquid and (ii) the selective separation of the olefins produced by the hydrogenation from the reaction mixture is performed by fractional distillation. Distillation structures while preparing For the condensation of part of olefin-containing hydrocarbons And hydro compounds High unsaturated carbon 5 0. Proposition 47, where hydrocarbon currents are composed of Aliphatic compounds with 3 - 9 carbon atoms 5 1. Proceedings of claim 47 where the hydrocarbon currents are composed of the norm principal. The olefins that have been separated as a product of the aforementioned hydrogenation 5 2. Proceedings of claim 49 where the hydrocarbons contain WHSV in the range 0.1-35 5 3. Hold movement. Right 50 where the upper pressure of the reactor column to The distillation is in the range 0 - 350 psig 5 4. The process of claim 49 where the fractional pressure of the hydrogen is less than 50 psia 5. 5. The process of claim 54 where the subpressure of the hydrogen is Less than 10 psia 5 6. Clause 54 with a fraction of the hydrogel less than 7 psia 5 7. Clause 53 with the subpressure less than 50 psia 5 8. Claim 57 process where the hydrogel pressure is less than 10 psia 5. 9. Clause 58 process where the hydrogel pressure is less than 7 psia 6 0. 49 by the catalist in the aforementioned hydrogenation Metal Clause VIII metal compounds or compounds are the basic components of the catalyst 6 1. Proceedings 60, where the catalist consists of Pd 6 2. The movement of claim 53 where the pressure above It is in the range of 50 - 150 psia. 6. 3. Proceedings of the claim 61, with the said catalist having money 6 4. The process for selective hydrogenation of unsaturated compounds. The advanced consists of steps of (a) feeding, (1) highly unsaturated hydrocarbon currents containing acetylene, and (2) hydrogen-containing currents entering the distillation column reactor (b) counter-flow. Together in the aforementioned distillation column reactor at the sub-pressure of the hydro Gens were produced in the range of at least 0.1 psi to less than 70 psi under distillation conditions with a phase. Of vapor and liquid phase is present (i) exposure to such currents in the catalyst distillation region. Hydrogenation is prepared in such a way that it acts as a distillation structure. By hydro Selective genetics of a part of highly unsaturated compounds with hydrogen to form Less unsaturated hydrocarbons in the reaction mixture In the mixing phase of the vapor / liquid and (ii) the selective separation of the olefins produced by the hydrogenation from the reaction mixture by fractional distillation in the distillation structure in While prepared For condensation of part of hydrocarbons containing Olefins and hydro compounds High unsaturated carbon 6 5. Claim Process 64 where the hydrocarbon flows contain Aliphatic compounds with 3 - 9 carbon atoms 6 6. Proceedings of claim 64 where the hydrocarbon currents are composed With the main volume of norm The olefins that have been separated as a product of the aforementioned hydrogenation 6 7. Clause 64 Movement, where the hydrocarbons contain WHSV in the range 0.1-35 6 8. Clause Process. Right 65 where the upper pressure of the reactor column is The distillation is in the range 0 - 350 psig 6 9. The process of claim 66 where the fractional pressure of the hydrogen is less than 50 psig 7 0. The process of claim 69 where the subpressure of the hydrogen is It is less than 10 psia 7. 1. The process of claim 70 where the hydrogelic pressure is less than 7 psia 7. 2. The movement of claim 68 where the aforementioned hydrogen fraction is less than 50 psia 7. 3.Procedure of claim 72 where the aforementioned hydrogen fraction is less than 10 psia 7. 4.Procedure 73 where the hydrogens are less than 7 psia 7. 5. Proceedings of the claim 65, whereby the catalist of the hydrogenation Metal Or compounds of group VIII metals as the basic components of the catalyst 7 6. The movement of claim 75, where the catalist consists of Pd 7. 7. Clause 68 movement with the above pressure in the range 50 - 150 psia 7. 8. The movement of claim 76, with the aforementioned catalist having money.