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Oxy-fuel cracking boilers using co2 as the working fluid

a technology of working fluid and oxy-fuel, which is applied in the direction of hydrocarbon by hydrocarbon cracking, chemistry apparatus and processes, organic chemistry, etc., can solve the problems of increasing the economic cost of countries, causing large amounts of greenhouse gases and other pollutants

Inactive Publication Date: 2022-06-09
LAMAR UNIV A COMPONENT OF THE TEXAS STATE UNIV SYST AN AGENCY OF THE STATE OF TEXAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This approach significantly reduces CO2 emissions, minimizes energy consumption, and eliminates NOx emissions by using pure oxygen, resulting in a lower carbon footprint and more efficient ethylene and propylene production.

Problems solved by technology

Cracking, however, produces large amounts of greenhouse gases and other pollutants such as NOx.
Global warming will further increase the economic costs to countries due to an increasing number of natural disasters in the future.

Method used

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  • Oxy-fuel cracking boilers using co2 as the working fluid
  • Oxy-fuel cracking boilers using co2 as the working fluid
  • Oxy-fuel cracking boilers using co2 as the working fluid

Examples

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Embodiment Construction

[0017]It is to be understood the present invention is not limited to particular devices or methods, which may, of course, vary. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting. As used in this specification and the appended claims, the singular forms “a”, “an”, and “the” include singular and plural referents unless the content clearly dictates otherwise. Furthermore, the word “may” is used throughout this application in a permissive sense (i.e., having the potential to, being able to), not in a mandatory sense (i.e., must). The term “include,” and derivations thereof, mean “including, but not limited to.” The term “coupled” means directly or indirectly connected.

[0018]Furnace with CO2 Recycle

[0019]FIGS. 1A and 1B depict a process flow diagram for an ethylene and / or propylene cracker unit, according to some embodiments. Cracker unit 100 may work as a convection furnace, like ...

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Abstract

Disclosed is a boiler may that uses recycled carbon dioxide as a working fluid. Instead of releasing high-purity CO2 into the atmosphere, the bulk of the CO2 is utilized as the working fluid and the produced CO2 is captured and sent to a pipeline for utilization or storage. These systems will minimize heat loss and achieve essentially zero CO2 emission to the air.

Description

PRIORITY CLAIM[0001]This patent application is a divisional of U.S. patent application No. 17 / 388,870, filed Jul. 29, 2021, which claims priority to U.S. Provisional Patent Application No. 63 / 058,641 filed Jul. 30, 2020, each of which is incorporated by reference as if fully set forth herein.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The invention generally relates to the formation of ethylene and / or propylene from hydrocarbon feedstocks.[0004]2. Description of the Relevant Art[0005]Ethylene and propylene are major petrochemicals as they are a primary building block to produce many other chemicals and products. Ethylene and propylene are produced from a variety of hydrocarbon feedstocks using cracking or pyrolysis in a furnace commonly referred to as a “cracker.” Common hydrocarbon feedstocks of steam cracking are the ethane / propane derived from natural / associated gas, naphtha, and other hydrocarbons.[0006]Cracking or pyrolysis is a reaction in the gas phase at ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C07C4/02B01J6/00
CPCC07C4/025B01J6/00C07C5/327C07C11/04C07C11/06
Inventor CHEN, DANIEL H.BUSS, RUSSELFERNANDES, DAN P.
Owner LAMAR UNIV A COMPONENT OF THE TEXAS STATE UNIV SYST AN AGENCY OF THE STATE OF TEXAS