Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
A bench-scale reactor is being used to conduct studies of the conversion of synthesis gas to methanol (MeOH) in the liquid phase by a novel process. In previous reports, we provided evidence for a two step reaction in series, the carbonylation reaction mainly takng place close and the hydrogenolysis reaction taking place on the surface of the copper chromate. The interaction between the two catalyst enhances the rate of MeOH formation. In the last quarter, we showed that under present operating conditions, the methyl formate (MeOH) concentration is not in equilibrium and hence both the carboxylation and the hydrogenolysis reactions influence the rate of MEOH formation. The activities of other alkali and alkaline earth compounds as catalysts, the effect of water and the controlling reaction in the concurrent synthesis is described in this report.
A Novel Process for Methanol Synthesis. Progress Report, September 1, 1992--November 30, 1992
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
A bench-scale reactor is being used to conduct studies of the conversion of synthesis gas to methanol (MeOH) in the liquid phase by a novel process. In previous reports, we provided evidence for a two step reaction in series, the carbonylation reaction mainly takng place close and the hydrogenolysis reaction taking place on the surface of the copper chromate. The interaction between the two catalyst enhances the rate of MeOH formation. In the last quarter, we showed that under present operating conditions, the methyl formate (MeOH) concentration is not in equilibrium and hence both the carboxylation and the hydrogenolysis reactions influence the rate of MEOH formation. The activities of other alkali and alkaline earth compounds as catalysts, the effect of water and the controlling reaction in the concurrent synthesis is described in this report.
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
A bench-scale reactor is being used to conduct studies of the conversion of synthesis gas to methanol (MeOH) in the liquid phase by a novel process. In previous reports, we provided evidence for a two step reaction in series, the carbonylation reaction mainly takng place close and the hydrogenolysis reaction taking place on the surface of the copper chromate. The interaction between the two catalyst enhances the rate of MeOH formation. In the last quarter, we showed that under present operating conditions, the methyl formate (MeOH) concentration is not in equilibrium and hence both the carboxylation and the hydrogenolysis reactions influence the rate of MEOH formation. The activities of other alkali and alkaline earth compounds as catalysts, the effect of water and the controlling reaction in the concurrent synthesis is described in this report.
Energy Research Abstracts
Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 782
Book Description
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 782
Book Description
A Novel Process for Methanol Synthesis. Progress Report, June 1, 1992--August 31, 1992
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
Book Description
A bench-scale reactor is being used to study the conversion of synthesis gas to methanol (MEOH) in the liquid phase by a novel method. In previous reports, we provided evidence for a two step reaction consisting of a carbonylation reaction taking place mainly in the ''film'' close to a copper chromite surface followed by a hydrogenolysis reaction taking place on the surface of the copper chromite. The interaction between the two catalysts enhances the rate of methanol formation. In this quarter, we reexamined the equilibrium concentration for methyl formate and obtained data at higher loadings of copper chromite.
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
Book Description
A bench-scale reactor is being used to study the conversion of synthesis gas to methanol (MEOH) in the liquid phase by a novel method. In previous reports, we provided evidence for a two step reaction consisting of a carbonylation reaction taking place mainly in the ''film'' close to a copper chromite surface followed by a hydrogenolysis reaction taking place on the surface of the copper chromite. The interaction between the two catalysts enhances the rate of methanol formation. In this quarter, we reexamined the equilibrium concentration for methyl formate and obtained data at higher loadings of copper chromite.
A Novel Process for Methanol Synthesis. Progress Report, March 1, 1992--May 31, 1992
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
Book Description
A bench-scale reactor is being used to conduct studies of the conversion of synthesis gas to methanol (MeOH) by a novel process. In previous reports, we provided evidence for a two-step reaction in series, the carbonylation reaction taking place mainly in a non-equilibrium region in the vicinity of the copper chromite surface, and the hydrogenolysis reaction taking place on the surface of the copper chromite. Interaction between the two catalysts enhances the rate of methanol formation. In this quarter, we investigated the effect of pore diffusion on reaction rate and obtained an expression for the rate of reaction for the methanol/methyl formate concurrent synthesis.
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
Book Description
A bench-scale reactor is being used to conduct studies of the conversion of synthesis gas to methanol (MeOH) by a novel process. In previous reports, we provided evidence for a two-step reaction in series, the carbonylation reaction taking place mainly in a non-equilibrium region in the vicinity of the copper chromite surface, and the hydrogenolysis reaction taking place on the surface of the copper chromite. Interaction between the two catalysts enhances the rate of methanol formation. In this quarter, we investigated the effect of pore diffusion on reaction rate and obtained an expression for the rate of reaction for the methanol/methyl formate concurrent synthesis.
A Novel Process for Methanol Synthesis. Progress Report, December 1, 1992--February 28, 1993
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
A bench-scale reactor is being used to conduct studies of the conversion of synthesis gas to methanol in the liquid phase by a novel process. In previous reports, we provided evidence for a two step reaction in series, the carbonylation reaction mainly taking place close to the copper chromate surface, and the hydrogenolysis reaction taking place on the surface of the copper chromate. The interaction between thetwo catalysts enhances the rate of MeOH formation. we have previously shown that under present operating conditions, the methyl formate concentration is not in equilibrium. The presence of H2O results in a drop in the rate of MeF generation by the carbonylation reaction. In this quarter, we examined schemes to reduce the H2O level in the reactor and enhance the rate of MeF formation. An increased methyl formate concentration would lead to increased methanol synthesis rates.
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
A bench-scale reactor is being used to conduct studies of the conversion of synthesis gas to methanol in the liquid phase by a novel process. In previous reports, we provided evidence for a two step reaction in series, the carbonylation reaction mainly taking place close to the copper chromate surface, and the hydrogenolysis reaction taking place on the surface of the copper chromate. The interaction between thetwo catalysts enhances the rate of MeOH formation. we have previously shown that under present operating conditions, the methyl formate concentration is not in equilibrium. The presence of H2O results in a drop in the rate of MeF generation by the carbonylation reaction. In this quarter, we examined schemes to reduce the H2O level in the reactor and enhance the rate of MeF formation. An increased methyl formate concentration would lead to increased methanol synthesis rates.
A Novel Process for Methanol Synthesis. Progress Report, September 1, 1991--November 30, 1991
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
Book Description
A bench-scale reactor is being used to conduct studies of the conversion of synthesis gas to methanol by a novel process. In previous reports, we provided evidence for a two step reaction in series: the carbonylation of methanol to methyl formate taking place in a non-equilibrium region in the vicinity of the copper chromite surface, and the hydrogenolysis of methyl formate to methanol taking place on the surface of the copper chromite. The synergism between the two catalysts enhances the rate of methanol formation. In this quarter, we tested several copper chromites (with different surface areas and stabilizing agents) on the rate of methanol synthesis. It seems likely that pore diffusion limitations control the hydrogenolysis reaction since the rate of methanol formation is proportional to the square root of the copper chromite surface area. Elemental analyses using Inductively Coupled Plasma analysis and pore size distribution analysis of copper chromite were carried out.
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
Book Description
A bench-scale reactor is being used to conduct studies of the conversion of synthesis gas to methanol by a novel process. In previous reports, we provided evidence for a two step reaction in series: the carbonylation of methanol to methyl formate taking place in a non-equilibrium region in the vicinity of the copper chromite surface, and the hydrogenolysis of methyl formate to methanol taking place on the surface of the copper chromite. The synergism between the two catalysts enhances the rate of methanol formation. In this quarter, we tested several copper chromites (with different surface areas and stabilizing agents) on the rate of methanol synthesis. It seems likely that pore diffusion limitations control the hydrogenolysis reaction since the rate of methanol formation is proportional to the square root of the copper chromite surface area. Elemental analyses using Inductively Coupled Plasma analysis and pore size distribution analysis of copper chromite were carried out.
Government Reports Annual Index
Author:
Publisher:
ISBN:
Category : Research
Languages : en
Pages : 1190
Book Description
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Publisher:
ISBN:
Category : Research
Languages : en
Pages : 1190
Book Description
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
A Novel Process for Methanol Synthesis. Progress Report, December 1, 1991--February 29, 1992
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 11
Book Description
A bench-scale reactor is being used to study the conversion of synthesis gas to methanol (MeOH) by a novel process. In previous reports, we provided evidence that the reaction takes place in two steps. A molecule of MeOH is first carbonylated to form methyl formate (MeF) which then reacts with H2 to form two molecules of MeOH. The second reaction occurs on the surface of a heterogeneous catalyst such as copper chromite, while the first reaction requires a homegenous catalyst such as potassium methoxide (KOMe) and takes place in a non-equilibrium region in the vicinity of the heterogeneous catalyst. A synergism between the two catalysts enhances the rate of MeOH formation. In this quarter, we studied the effect of reaction conditions on the rate of formation of MeF and the effect of CO2 concentration in the feed gas on the rate of MeOH synthesis. Kinetic studies were also initiated and rate expressions were examined.
Publisher:
ISBN:
Category :
Languages : en
Pages : 11
Book Description
A bench-scale reactor is being used to study the conversion of synthesis gas to methanol (MeOH) by a novel process. In previous reports, we provided evidence that the reaction takes place in two steps. A molecule of MeOH is first carbonylated to form methyl formate (MeF) which then reacts with H2 to form two molecules of MeOH. The second reaction occurs on the surface of a heterogeneous catalyst such as copper chromite, while the first reaction requires a homegenous catalyst such as potassium methoxide (KOMe) and takes place in a non-equilibrium region in the vicinity of the heterogeneous catalyst. A synergism between the two catalysts enhances the rate of MeOH formation. In this quarter, we studied the effect of reaction conditions on the rate of formation of MeF and the effect of CO2 concentration in the feed gas on the rate of MeOH synthesis. Kinetic studies were also initiated and rate expressions were examined.
A Novel Process for Methanol Synthesis. Progress Report, June 1, 1993--September 30, 1993
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
A bench-scale reactor is being used to conduct studies of the conversion of synthesis gas to methanol (MeOH) in the liquid phase by a novel process. In previous report, we provided evidence for a two step reaction in series, the carbonylation reaction mainly taking place close to the copper chromite surface, and the hydrogenolysis reaction taking place on the surface of the copper chromite. The interaction between the two catalysts enhanced the rate of MeOH formation. We have previously shown that, under present operating conditions, the methyl formate (MeF) concentration is not in equilibrium. The presence of H2O results in a drop in the rate of MeF generation by the carbonylation reaction. In this quarter, preparation of the final report was continued.
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
A bench-scale reactor is being used to conduct studies of the conversion of synthesis gas to methanol (MeOH) in the liquid phase by a novel process. In previous report, we provided evidence for a two step reaction in series, the carbonylation reaction mainly taking place close to the copper chromite surface, and the hydrogenolysis reaction taking place on the surface of the copper chromite. The interaction between the two catalysts enhanced the rate of MeOH formation. We have previously shown that, under present operating conditions, the methyl formate (MeF) concentration is not in equilibrium. The presence of H2O results in a drop in the rate of MeF generation by the carbonylation reaction. In this quarter, preparation of the final report was continued.
Government Reports Announcements & Index
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 848
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 848
Book Description