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In deep‑well drilling fluids under high‑temperature conditions, sodium methallyl sulfonate (SMAS) copolymers significantly enhance fluid loss control primarily through an “adsorption‑hydration” synergistic film‑forming mechanism and the unique chemical stability of the sulfonate group (–SO₃⁻). Mechanism: Synergy between Adsorption and Hydration Stability under High‑Temperature Conditions High temperatures in deep wells severely challenge conventional polymers, Read more

Industrial VOCs catalysts have seen major breakthroughs in low-noble/non-noble performance, anti-poisoning, manufacturing, and multi-pollutant integration since 2025–2026. Below are the key new developments: 1. Single-Atom & Dual-Metal Catalysts (Cost & Activity Breakthrough) 2. Non‑Noble Metal Oxides (Cost‑Effective Alternatives) 3. Advanced Manufacturing & Structured Catalysts 4. Anti‑Poisoning & Multi‑Pollutant Control 5. AI & Read more

A systematic, in-depth overview of Industrial VOCs Catalysts (Volatile Organic Compounds Catalysts for industrial emission control), covering their working principles, main types, key performance metrics, typical applications, deactivation & mitigation, and recent technical trends. 1. Core Principle & Process Industrial VOCs catalytic oxidation relies on catalysts to lower the activation energy for Read more

1. General Reaction Principle Mercaptan scavengers work by chemically reacting with mercaptan groups (R–SH) to transform odorous, corrosive, reactive mercaptans into stable, odorless, non‑corrosive products. The core target is the thiol group (–SH). Main reaction pathways: 2. Reaction Mechanism of Triazine-Based Scavengers Triazines are the most widely used water‑soluble mercaptan scavengers, typically based on hexahydro‑1,3,5‑tris(hydroxyethyl)triazine (HET Triazine). Read more

Abstract Mercaptan scavenger is a key chemical additive used in upstream oil & gas production to control mercaptan compounds (R–SH) that cause strong odor, equipment corrosion and product non-compliance. This paper summarizes typical application scenarios, reaction mechanisms, safety precautions and field application methods of mercaptan scavengers in oil and gas Read more

1. Oil & Gas Production 2. Natural Gas & Pipeline Gas 3. Petroleum Refining & Fuel Products 4. Petrochemical & Chemical Processing 5. Storage, Transportation & Terminals 6. Wastewater & Emission Treatment

In oil and gas production, mercaptan scavengers work by chemically converting odorous and corrosive mercaptans into harmless, odorless compounds, thereby fundamentally eliminating odor, reducing toxicity, and mitigating corrosion risks. The technical principles are primarily based on the following types of chemical reactions, depending on the type of scavenger used: ⚙️ Read more