Sulfur or arsenic adsorption method

The invention relates to a sulfur or arsenic adsorption method. The invention mainly aims at solving the problems of high adsorption temperature, high pressure, high adsorbent bulk density and high industrial application cost of prior arts. The invention provides a sulfur or arsenic adsorption method comprising a step that sulfur or arsenic in a raw material fully contacts an adsorbent. The adsorbent comprises hydrotalcite composed of divalent ions Zn and Cu and trivalent ions Al and Fe . With the technical scheme, the problems are well solved. The method can be applied in purification of natural gas, synthetic gas, carbon dioxide, oil field gas, and light gas liquid hydrocarbon raw materials.