$ 解：设生成甲醇的质量为x。$
$\mathrm {CO}_{2}＋3\mathrm {H}_{2}\xlongequal[ ]{\mathrm {ZnO}-\mathrm {ZrO}_{2} }\mathrm {CH}_{3}\mathrm {OH}+\mathrm {H}_{2}\mathrm {O}$
$\mathrm{\frac {44 }{22t }=\frac {32 }{x }~~~~~解得 x = 16t }$
$答：能生成甲醇的质量为16\mathrm {t}。$
