Integrated Acetylene Production Process for Cleaner Chemical Derivatives
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Solution Overview
Problem
Current processes for producing acetylene derivatives from hydrocarbon feedstocks face challenges such as high carbon footprint, contamination from stabilizers and impurities, and the need for transporting reactants, which increases costs and environmental impact.
Innovation Solution
An integrated process that collocates the production of acetylene and other reactants, including partial oxidation, methanol production, carbonylation, and derivative processes like vinyl acetate monomer, formaldehyde, vinyl chloride monomer, and 1,4-butanediol production, reducing the need for stabilizers and impurities and minimizing carbon impact by optimizing the use of hydrogen, carbon monoxide, and acetylene within the same location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If acetylene and reactants are produced separately and transported to each other, then production flexibility is maintained, but transportation costs increase and carbon footprint expands
Solution Approach 1:
The patent merges the acetylene production process with the reactant production process into a single integrated facility. The partial oxidation unit produces acetylene while simultaneously generating synthesis gas that is converted to methanol and acetic acid on-site, eliminating the need for transporting these chemicals between separate facilities and thereby reducing transportation-related carbon emissions.
2Reliability
If acetylene is produced in small quantities for proximate use, then product quality is maintained, but production scale is limited and transport requirements increase
Solution Approach 1:
The integration allows large-scale acetylene production while maintaining quality by producing reactants (methanol, acetic acid) on-site. This eliminates the need for transport and stabilizers required in distributed production, enabling both high productivity and reliable product quality simultaneously.
Solution Approach 2:
The facility serves itself by producing its own reactants (methanol and acetic acid) from the synthesis gas generated during acetylene production. This self-sufficiency allows large-scale operation without compromising quality, as the reactants are produced in the same controlled environment where acetylene is made.
3Stability of the object's composition
If stabilizers and impurities are added to acetylene for transport, then acetylene stability is improved, but downstream reaction purity decreases and additional purification steps are required
Solution Approach 1:
The acetylene reacts with methanol and acetic acid that are produced in-situ within the same facility, eliminating transport requirements. This self-service arrangement ensures that no stabilizers or impurities are introduced, maintaining both acetylene stability and downstream reaction purity simultaneously.
Solution Approach 2:
The patent extracts the reactant production process from external sources and incorporates it directly into the acetylene production facility. This extraction of the reactant supply chain from external transportation and storage eliminates the introduction of stabilizers and impurities, preserving acetylene purity for downstream reactions.
4Adaptability or versatility
If multiple separate facilities are used for acetylene and reactant production, then process specialization is achieved, but integrated efficiency and carbon footprint are compromised
Solution Approach 1:
The patent combines specialized processes (partial oxidation for acetylene, syngas conversion for methanol and acetic acid) into a single integrated facility. This merging maintains the technical advantages of process specialization while achieving the productivity and efficiency benefits of integration, including shared infrastructure and eliminated transportation.
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
This integrated approach significantly reduces contaminant concentrations in acetylene derivatives, decreases the carbon footprint by minimizing transportation-related emissions, and enhances the efficiency of acetylene utilization, leading to cleaner and more sustainable production of acetylene-based chemicals.
Implementation Method 1
partially oxidizing a hydrocarbon feedstock comprising 10 wt % or more of one or more C1-C4 alkanes to produce a partial oxidation mixture comprising hydrogen, CO, and acetylene
Implementation Method 2
providing at least a portion of the hydrogen and CO of the partial oxidation mixture to a collocated methanol production process to produce a methanol-containing effluent
Implementation Method 3
providing at least a portion of the methanol-containing effluent to a collocated carbonylation process to produce an acetic acid-containing effluent
Data Source
AI summary
An integrated process for the production of one or more acetylene derivatives is provided. The integrated process includes a) partially oxidizing a hydrocarbon feedstock to produce a partial oxidation mixture comprising H2, CO, and acetylene, b) providing the H2 and CO of the partial oxidation mixture to a collocated methanol production process to produce a methanol-containing effluent; c) providing the methanol-containing effluent to a collocated carbonylation process to produce an acetic acid-containing effluent; and d) providing the acetylene of the partial oxidation mixture and the acetic acid-containing effluent to one or more of the collocated acetylene-derivative processes following: i) a vinyl acetate monomer production process; ii) an oxidation unit for the production of formaldehyde from the methanol-containing effluent; iii) a vinyl chloride monomer production process, and/or iv) a 1,4-butanediol production process.