UNSPSC 12161608: Adsorbent material catalyst

In Adsorbent material catalyst (cl, f, as, hg, sgb), the reactants are the adsorbate and the catalyst is the adsorbent. Two types of adsorptions are physical adsorption (physisorption) and chemical adsorption (chemisorption).

UNSPSC 12161608 Adsorbent material catalyst is a Commodity code that captures state and local procurement of specialized materials and equipment for well remediation, water treatment infrastructure, and environmental site restoration — though recent opportunities show minimal direct coding alignment with the abstract commodity title. The code sees sparse relevant activity; most recent state and local solicitations under this code involve well plugging, abandonment, and orphan well remediation projects rather than procurement of adsorbent catalysts as standalone products or materials. When opportunities do appear, they are issued by state environmental and natural resource departments (Michigan Department of Environment, Great Lakes, and Energy; Mississippi Oil and Gas Board; Texas General Land Office; Railroad Commission of Texas; Illinois Department of Natural Resources) and occasionally by county or municipal utilities divisions. Geographic activity concentrates in Michigan, Mississippi, Texas, and Florida, with additional orphan well work in Georgia and scattered municipal water infrastructure projects across other states.

Recent solicitations under or near this code predominantly involve well drilling, plugging, and site restoration services rather than adsorbent materials procurement. The Michigan Department of Environment, Great Lakes, and Energy issued four overlapping direct solicitations in July 2026 (DS7612600000000322, DS7612600000000332, DS7612600000000352, DS7612600000000342) for orphan well plugging and site restoration across 38 total gas storage wells in Gratiot and Montcalm counties, with proposals due July 21, 2026, and mandatory prequalification through prior RFPs and attendance at pre-proposal meetings required. These solicitations specify Davis-Bacon prevailing wage compliance, unit-rate pricing for 68 line items covering labor, equipment, materials, and specialized services, and best-value award criteria. The Mississippi Oil and Gas Board and Texas General Land Office have pursued similar well plugging programs for federally funded orphan well remediation under Infrastructure Investment and Jobs Act grants. Utility-focused activity appears in Florida (Seminole County, Sarasota County, Marion County) and California (Eastern Municipal Water District, San Bernardino County) for water well construction, maintenance, and rehabilitation. The code shows little evidence of direct procurement for adsorbent materials, catalysts, or treatment chemicals as line-item commodities; most activity centers on integrated well services where such materials would be embedded in scope rather than separately specified and coded.