# US 2013/0156543 A1 · Single system with integrated compressor and pump and method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0156543 A1 - Document ID: US20130156543A1 - Status: Published application - Kind: A1 - Application number: 13/579,688 - Filed: 2011-02-11 - Published: 2013-06-20 - Earliest claimed: 2010-02-17 - Assignees: Nuovo Pignone S.p.A. - Inventors: Giuseppe Sassanelli; Matteo Berti; Lorenzo Bergamini; Stefano Bresciani; Marco Deiaco; Nicola Banchi - Web page: https://patentgrep.com/patent/US20130156543A1 ## CPC - F04B 41/06: Combinations of two or more pumps - F04D 13/14: the pumps being all of centrifugal type {(deviation valves F04D15/0016)} - F04D 25/163: {driven by a common gearing arrangement} - F04D 29/5826: {Cooling at least part of the working fluid in a heat exchanger} - F04D 31/00: Pumping liquids and elastic fluids at the same time - F25J 3/0266: {separation of carbon dioxide (production of carbon dioxide in general C01B32/00)} - F25J 3/067: {separation of carbon dioxide (production of carbon dioxide in general C01B32/00)} - B01D 53/265: {by refrigeration (condensation)} - B01D 2256/22: Carbon dioxide - B01D 2257/80: Water - F25J 2230/20: Integrated compressor and process expander; Gear box arrangement; Multiple compressors on a common shaft - F25J 2230/80: the fluid being carbon dioxide - F25J 2235/80: the fluid being carbon dioxide - Y02C 20/40: of CO2 - F04B: POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS (machines for liquids, or pumps, of rotary-piston or oscillating-piston type F04C; non-positive-displacement pumps F04D; pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped F04F) - F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02) - F25J: LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS {OR LIQUEFIED GASEOUS} MIXTURES BY PRESSURE AND COLD TREATMENT {OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE (cryogenic pumps F04B37/08; gas storage vessels, gas holders F17; filing vessels with, or discharging from vessels, compressed, liquefied or solidified gases F17C; refrigeration machines, plants, or systems F25B)} - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - Y02C: CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG] ## Abstract Method and system for compressing a fluid in a gas phase and for pumping the fluid in a dense phase. The system includes a compressor part having an impeller; a compressor part inlet that receives the fluid in the gas phase; a compressor part outlet that provides the fluid in the gas phase; a temperature changing device that changes a phase of the fluid; a pump part having an impeller; a pump part inlet that receives the fluid in the dense phase from the compressor part outlet; a pump part outlet that outputs the fluid in the dense phase from the system; a single bull gear configured to rotate around an axial axis with a predetermined speed; plural pinions contacting the single gear bull and configured to rotate with predetermined speeds, and a pump shaft configured to rotate the at least one impeller of the pump part. ## Claims ### Claim 1 A system configured to compress a fluid in a gas phase and to pump the fluid in a dense phase, the system comprising: a compressor part comprising at least one impeller configured to compress the fluid in the gas phase; a compressor part inlet connected to the compressor part and configured to receive the fluid in the gas phase and to provide the fluid to the at least one impeller; a compressor part outlet configured to provide the fluid in the gas phase at a density equal to or larger than a predetermined density; a temperature changing device connected to the compressor part outlet and configured to change the fluid to the dense phase; a pump part comprising at least one impeller configured to pump the fluid in the dense phase; a pump part inlet configured to receive the fluid in the dense phase from the compressor part outlet; a pump part outlet configured to output the fluid in the dense phase from the system; a single bull gear configured to rotate around an axial axis with a predetermined speed; plural pinions contacting the single gear bull and configured to rotate with predetermined speeds, different from each other, each pinion being configured to activate a corresponding compressor part impeller; and a pump shaft extending from the pump part and configured to engage the single bull gear to rotate the at least one impeller of the pump part, wherein the at least one impeller of the compressor part has a different speed than the at least one impeller of the pump part, and the dense phase is defined by the fluid having a density larger than the predetermined density. ### Claim 2 (depends on 1) The system of claim 1, wherein the temperature changing device is one of a cooling device, a chiller, or an expander and is provided between the compressor part outlet and the pump part inlet, the fluid is CO2, the compressor part is configured to receive the CO2 in the gas phase and to drive out the CO2 in the gas phase, and the pump part is configured to receive the CO2 in the dense phase and to drive out the CO2 in the dense phase. ### Claim 3 (depends on 1) The system of claim 1, wherein the temperature changing device is configured to reduce an enthalpy of the fluid in the gas phase to be equal to or lower than an enthalpy of a critical point of the fluid. ### Claim 4 (depends on 1) The system of claim 1, further comprising: a single drive mechanism that drives the bull gear. ### Claim 5 (depends on 1) The system of claim 1, further comprising: a compressor casing configured to house the compressor part and the bull gear; and a pump casing configured to receive the pump part, wherein the pump casing is attached to the compressor casing. ### Claim 6 (depends on 1) The system of claim 1, wherein the system is configured to handle only one fluid with a predetermined efficiency and the system cannot be reconfigured to handle another fluid with the same efficiency. ### Claim 7 (depends on 1) The system of claim 1, wherein the at least one impeller of the compressor part and the at least one impeller of the pump part comprise: first to sixth compressor impellers configured such that the first and second compressor impellers are driven at a same first speed, the third and fourth compressor impellers are driven at a same second speed, and the fifth and sixth compressor impellers are driven at a same third speed, the first, second and third speeds being different from each other and from the speed of the bull gear; and first to ten pump impellers configured to be driven at a same fourth speed by the pump shaft. ### Claim 8 (depends on 1) The system of claim 1, further comprising: N compressor impellers and M pump impellers; piping connecting outputs and inputs of the N compressor impellers such that the input fluid in the gas phase is driven serially through all N compressor impellers; piping connecting an output of the Nth compressor impeller to the M pump impellers such that the fluid in the gas phase from the Nth compressor impeller is driven serially trough all M pump impellers after undergoing a phase change; water removing devices provided between an output of a compressor or a pump impeller and an input of a next compressor or pump impeller; and at least one temperature changing device along the piping configured to reduce a temperature of the fluid in the gas or dense phase prior to entering a next compressor or pump impeller, wherein N is larger than two and M is equal to or larger than one. ### Claim 9 (depends on 1) The system of claim 1, further comprising six compressor impellers and eight pump impellers, wherein an input pressure at the compressor part of a CO2 in the gas phase is 1 bar and an output pressure at the pump part of the CO2 in the dense phase is between 10 and 120 bar. ### Claim 10 A method for compressing a fluid in a gas phase and for pumping the fluid in a dense phase with a system including a compressor part and a pump part, the compressor part comprising at least one compressor part impeller and the pump part having at least one pump part impeller, the method comprising: receiving at a compressor part inlet of the compressor part the fluid in the gas phase; compressing the fluid in the gas phase in one or more stages of the compressor part such that the fluid emerges at a compressor part outlet of the compressor part as a fluid in the gas phase at a density equal to or larger than a predetermined density; transforming a phase of the fluid to the dense phase by cooling the fluid after exiting the compressor part; receiving the fluid in the dense phase at a pump part inlet of the pump part; pumping the fluid in the dense phase through one or more stages of the pump part such that the fluid emerges at a pump part outlet of the pump part having a higher pressure than at the pump part inlet; and rotating a single bull gear in order to activate all of the at least one or more compressor stages and the at least one or more pump stages, wherein the dense phase is defined by the fluid having a density larger than the predetermined density.