Laboratory of Catalytic Technologies of the Saint Petersburg State Institute of Technology (Technical University)
Isobutane alkylation with light olefins on solid catalysts using reactive distillation technologies.
Organization type: Laboratory
Field of science: Chemical technologies
Goals and Objectives
Research Areas: Catalytic processes in oil refiningProject objective: Alkylation of isobutane with light olefins on solid catalysts
Scientific Results
- The theoretical foundations of the processes underlying the synthesis of active and selective alkylation catalysts are described. The relationship between the modification stages, structural-strength, and acid-base properties of the resulting catalysts has been determined.
- It was established that the zeta potential of particles, which determines the measure of their electrostatic interaction, plays a major role in catalyst forming. The influence of reaction stage time and conditions on changes in textural characteristics, residual content of Brønsted and Lewis acid sites, and the amount of compounds adsorbed on the surface of deactivated catalysts was determined.
- A methodology was developed to create two types of effective alkylation catalysts: a synthetically modified zeolite Y based on a combination of decationization, dealumination, and ion exchange methods, and a bulk catalyst based on sulfated zirconium hydroxide and pseudoboehmite.
- A combined reactive distillation alkylation process was developed using special external reaction sections, in which a nickel-containing zeolite catalyst is distributed across segments, providing an efficient hydrogen regeneration procedure, removal of evaporating reagents, alkylate recirculation, distributed supply of olefin feedstock, and recirculating isobutane.
- A pilot test of a combined reactive distillation alkylation process with external reaction sections was performed on a pilot plant. Data for scaling and designing an industrial combined alkylation unit were obtained.
- A catalyst research complex has been established, including methods of nitrogen porosimetry, IR spectroscopy of adsorbed pyridine, X-ray fluorescence elemental analysis, derivatographic analysis, UV spectroscopy, temperature-programmed reduction, oxidation and desorption of probe molecules, X-ray phase analysis, particle size analysis by laser diffraction, and gas chromatography-mass spectrometry.
Implementation of research results
- An energy-saving technology for producing alkylate gasoline has been developed through the use of combined reaction and mass-transfer processes.
- Obtained and implemented 5 invention patents and 2 utility models: "Method for producing a catalyst and a catalyst for alkylation of isobutane with isobutene" (IP), "Method for preparing a catalyst and a catalyst for alkylation of isobutane with isobutene" (IP), "Device for alkylation of isobutane with olefins on a solid catalyst" (UM), "Method for producing a spherical catalyst and a catalyst for alkylation of isobutane with isobutylene" (IP), "Catalyst for oxidative condensation of methane and method for its production" (IP), "Unit for isomerization of light gasoline fractions" (UM), "Method for producing a catalyst for the process of alkylation of paraffins with olefins" (IP).
- A process procedure and a process flow map for the preparation of the HY-AS-ZS-500 catalyst have been developed. Pilot batches of the catalyst have been manufactured.
- Completed 9 commercial contracts and signed partnership agreements to support the development of new catalytic materials and technologies with leading Saint Petersburg engineering companies in the field of oil and gas processing.
A Center for Technological Excellence was established at the St. Petersburg State Institute of Technology (Technical University) in a consortium with PJSC Gazprom Neft as part of a partnership development roadmap.
Education and personnel retraining
- An internship for a Laboratory employee was organized at a Summer School in Liverpool (UK).
- Defenses: 5 PhD theses.
- 23 young scientists and employees of third-party organizations completed advanced training at the Laboratory.
- 4 Laboratory employees completed additional training.
- 2 Bachelor's degree programs developed:
- Computer modeling of hydrocarbon systems;
- Computer modeling of catalytic systems.
- 9 Master's degree training programs have been developed:
- Techno-economic analysis;
- Optimization of technological modes of industrial units in oil refining and petrochemistry;
- Design methods for resource-saving production in the chemical, petrochemical, and biotechnological industries;
- Energy carriers. Formation, properties, and environmental issues of processing;
- Research of transient processes in chemical and petrochemical technology. Energy-technological systems in chemistry, petrochemistry, and oil refining;
- Design and instrumentation of resource-saving systems;
- Modern oil refining processes;
- Modern methods for the intensification of chemical-technological processes;
- Project management.
- Developed 3 additional professional education programs (advanced training programs):
- Modern trends in the development of alkylation catalysts;
- Modern approaches to energy and resource conservation in oil refining and petrochemistry;
- Energy saving in oil refining: methodology and practical implementation;
- Prepared 2 study guides (Course and diploma design of oil refining and petrochemical industry processes. Part 3. Primary oil refining; Catalysis, catalytic processes and reactors) and 1 methodological instruction (Preparation of catalysts by impregnation of porous supports).
- Conducted 2 international conferences in the field of petrochemistry and oil refining.
- Agreements on joint specialist training have been concluded with leading global and Russian universities in the field of chemical technology.
Cooperation
- Åbo Akademi University (Finland), Cracow University of Technology (Poland), LLC PO Kirishinefteorgsintez (Russia): joint research, student exchanges
- Saint Petersburg State University (Russia): student exchanges
- LLC Progressive Solutions (Russia), LLC RRT (Russia), LLC Alvega (Russia), NPF Olkat (Russia): joint research
- PJSC Gazprom Neft: creation of a collective research center
Website: https://spbti.ru/scientific_activity/laboratoriya_kataliticheskih_tehnologij
Contact person: Dmitry Andreevich Sladkovsky, Head of Laboratory, PhD in Engineering, Associate Professor
Address: 24-26/49 Moskovsky Ave.
Phone: +7 812 494-92-03, 3360
Email: resourcesaving_dept@spbti.ru
Contact person: Dmitry Andreevich Sladkovsky, Head of Laboratory, PhD in Engineering, Associate Professor
Address: 24-26/49 Moskovsky Ave.
Phone: +7 812 494-92-03, 3360
Email: resourcesaving_dept@spbti.ru
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