Electric-Field Hydrate CO2 Capture With Faster Nucleation and Separation
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Solution Overview
Problem
Existing CO2 capture apparatuses based on the hydrate method face issues such as slow hydrate nucleation, long growth cycles, difficulty in separating hydrate blocks from slurry, and high energy consumption, making industrialization challenging.
Innovation Solution
An electric field-based CO2 capture apparatus utilizing a seawater input module, hydrate former supply module, nucleation module, enhanced growth module, filtration module, and collection module, incorporating features like external electric fields, variable diameter spiral pipelines, and rotating sieve plates to accelerate hydrate formation and separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional hydrate method is used for CO2 capture, then CO2 separation is achieved, but hydrate nucleation is slow and growth cycle is long
Solution Approach 1:
The patent replaces traditional thermal and pressure control methods with an electric field-based system to induce and accelerate hydrate nucleation. Electrodes generate an electric field that directly influences water molecule arrangement, enabling faster nucleation without relying solely on slow thermal diffusion processes.
Solution Approach 2:
The patent applies electric field strength as a controllable parameter to accelerate hydrate formation. By adjusting voltage and electrode configuration, the system optimizes nucleation rate and growth speed, transforming the kinetic parameters of hydrate formation to achieve faster CO2 capture cycles.
2Productivity
If hydrate method is used for CO2 capture, then CO2 separation is achieved, but hydrate block is difficult to separate from slurry
Solution Approach 1:
The patent employs a rotating sieve plate structure that divides the slurry separation process into multiple zones. The sieve plate with specific aperture sizes segments hydrate blocks from liquid slurry through rotational motion, allowing continuous separation and reducing operational difficulty.
Solution Approach 2:
The patent uses a rotating sieve plate instead of static filtration structures. The dynamic rotation creates varying pressure zones and flow patterns that facilitate hydrate block separation, preventing clogging and enabling continuous operation with improved ease of separation.
3Productivity
If integrated apparatus is designed for CO2 capture by hydrate method, then CO2 capture function is achieved, but energy consumption is high and industrialization is difficult
Solution Approach 1:
The patent designs the system where the electric field apparatus serves multiple functions: it accelerates nucleation, promotes growth, and facilitates separation through the rotating sieve plate. This multi-functionality reduces the need for separate energy-intensive units, lowering overall energy consumption and improving industrialization potential.
Solution Approach 2:
The patent optimizes electric field parameters (voltage, frequency, electrode spacing) to achieve efficient hydrate formation at lower energy inputs. By carefully controlling these parameters, the system maximizes CO2 capture efficiency while minimizing energy consumption, making industrialization more feasible.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus efficiently captures CO2 by accelerating hydrate formation, facilitating easy separation of hydrate blocks, and optimizing energy use, thereby enabling industrial-scale CO2 capture.
Implementation Method 1
incorporating features like external electric fields, variable diameter spiral pipelines, and rotating sieve plates to accelerate hydrate formation and separation
Implementation Method 2
The separation of CO2 by a hydrate method is an efficient, economical and practical separation technology
Implementation Method 3
incoming seawater is pre-cooled in the heat exchanger a3 through the seawater supply pipeline 1
Implementation Method 4
a centrifugal pump a2, and then flows through the diverter valve a4
Data Source
AI summary
The present invention belongs to the technical field of hydrate application, and proposes an electric field-based CO2 capture apparatus by a hydrate method and a method therefor. Small particles of hydrate are generated by incoming seawater and incoming hydrate former at low temperature and high pressure. After flowing through the electric field, the particles are quickly formed, and then separated, dried and compressed efficiently by a solid-liquid separation chamber. Finally, hydrate blocks are produced. The combination of a stirring method, a spraying method and an external electric field can effectively solve the characteristics of slow hydrate formation and long cycle. The solid-liquid separation chamber can be designed to efficiently filter out the hydrate particles and prevent a filter plate from blocking. The use of heat exchange chambers in many places make the cooling amount in the discharged waste recycled, greatly thereby improving the utilization efficiency of energy and economic benefits.