Heat integration utilizing intermediary fluid in gasification

EP4665823A2Pending Publication Date: 2025-12-24SUNGAS RENEWABLES INC
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Patent Information

Application Number
EP2024757481
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-02-15
Filing Date
2024-02-12
Publication Date
2025-12-24

AI Technical Summary

Technical Problem

Current gasification technologies face inefficiencies in heat integration between unit operations due to mismatched boundary conditions, such as temperature, pressure, and flow rates, leading to complex and costly heat management, and the risk of cross-contamination from using process water for heat exchange.

Method used

Implementing an intermediary fluid for heat transfer between unit operations, which allows for flexible temperature, pressure, and flow rate control, reducing the risk of cross-contamination and enabling efficient heat recovery and utilization across diverse operations.

Benefits of technology

This approach simplifies heat integration, reduces operational complexity and costs, and enhances safety by decoupling heat transfer from process fluid composition, allowing for adaptable and efficient heat management across gasification processes.

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Abstract

Gasification processes utilizing carbonaceous feeds and preferably biomass are disclosed, which can effectively integrate heat between at least two unit operations, through the use of an intermediary fluid. This advantageously improves operating flexibility, in terms of meeting an array of potentially mis-matched boundary conditions associated with the unit operations to / from which heat is transferred, including flows, temperatures, and pressures. Divergent interfacing requirements are thereby addressed, and the use of a non-toxic intermediary fluid for heat exchange ensures environmental safety in the event that such fluid is leaked. In representative embodiments, configurations whereby heat may be added to, or rejected from, the intermediary fluid, such as in the case of its circulation in an open or closed loop, can further support interface requirements between any two operations, or among several operations.
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